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158 Cards in this Set
- Front
- Back
Chemical control of Behavior
What are the three major part of the brian that can control your body? |
The Hypothalamus
The Autonomic Nervous System The Modulatory system |
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Secretory Hypothalamus:
What is the mechanism of the hypothalamus? |
Hypothalamus controls the pituitary gland which release neurons "neurohormones" into the blood.
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Secretory Hypothalamus:
Where are the neurohormones going to in the blood? |
To target cells that are close to the blood supply.
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Secretory Hypothalamus:
How is the hypothalamus able to control all parts of your body? |
Everything that is close to your blood cells is affected by your hypothalamus. brain uses chemicals to control globally your body.
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Autonomic Nervous System:
How does the brain controls the rest of your body? |
A few neurons in the hypothalamus make 100's of 1000's of connections with target cells. Wide spread Global affect.
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Autonomic Nervous System:
By stressing you out what can happen? |
Increase heart rate and contraction of veins and a change in blood flow leading to a decrease in digestion.
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Autonomic Nervous System:
How many places are not affected by the autonomic nervous system? |
Hardly any.
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Diffus Modulatory System:
How is this different than Autonomic ? |
a series of brain neurons that project to all areas IN the brain. Autonomic is all areas outside the brain.
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Diffus Modulatory System:
Uses axon terminals and also what to release neurotransmitters? |
synapses in passing.
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Secretory Hypothalamus:
Name and what it looks like |
It is called the third ventrical - a fluid filled cavity right in the middle of the brain.
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Secretory Hypothalamus:
What is surrounding the third ventrical? |
the hypothalamus is surrounding the third ventrical.
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Secretory Hypothalamus:
list the three zones and the nucleus of the hypothalamus. |
1. Periventricular Zone closest to the 3rd ventrical
2. Medial Zone 3. Lateral Zone 4. Arcuate Nucleus is at the bottom of all three zones |
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Secretory Hypothalamus:
Are all of these part of the hypothalamus? |
Yes
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Secretory Hypothalamus:
Pituitary gland: What are the two regons of the pituitary gland? |
Anterior and posterior.
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Secretory Hypothalamus:
Where is the hypothalamus located compared to the pituitary gland? |
Just above it.
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Autonomic Nervous System:
What are the two subsystems of the autonomic Nervous system? |
Parasympathetic nervous system and the sympathetic nervous system.
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Autonomic Nervous System:
Where does the sympathetic nerves originate from? |
Thoracic and Lumbar region of the spine
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Autonomic Nervous System:
Where does the parasympathetic nerves originate from? |
Brain stem and sacral region.
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Autonomic Nervous System:
Preganglionic neurons are _____ and release _____ and post ganglionic neurons are ______ and release _____in the SYMPATHETIC nervous system. |
Short, Ach
Long, Noraepenephrin |
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Autonomic Nervous System:
Preganglionic neurons are _____ and release _____ and post ganglionic neurons are ______ and release _____in the PARASYMPATHETIC nervous system. |
Long, Ach
Short, Ach |
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Autonomic Nervous System:
Sympathetic nervous systems goal is? |
Short term surival
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Autonomic Nervous System:
parasympathetic nervous systems over function is? |
Long term survival
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Autonomic Nervous System:
What are the three branches of the Autonomic Nervous System. |
1.
2. 3. Enteric Nervoux system |
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Autonomic Nervous System:
What is the responsibility of the Enteric Nervous system? |
To aid in the digestion of food.
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Autonomic Nervous System:
How many neurons are in the Enteric nervous system? |
as many as the entire spinal cord. so its large.
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Autonomic Nervous System:
Enteric nervous system, what makes it operate? |
on its own (like if you ripped out the heart it would still beat), but it can be affected by the parasympathetic and sympathetic nervous system. (slow it down, speed it up)
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Autonomic Nervous System:
Enteric nervous system is connected to what types of neuron connections? |
Sensory and motor information. As soon as you swallow the enteric nervous system is taking over.
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Autonomic Nervous System:
Enteric nervous system operates what organs? |
esophagus, stomach, intestins, gall bladder, pancreous, blood flow to the digestive system.
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Enteric nervous system:
Lumen of Digestion system is located where? |
the very center of the lumen of the tube of the middle outside of your body.
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Enteric nervous system:
lumen is surrounded by neurons then another muscle layer called ______? |
Circular smooth muscle and contract and squeezes the tube.
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Enteric nervous system:
lumen is surrounded by neurons then another muscle layer called circular smooth muscle and is covered by another muscle layer called______? |
Longitudinal smooth muscle and contracts and makes the tube shorter.
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Enteric nervous system:
lumen is surrounded by circular smooth muscle and another muscle layer called Longitudinal smooth muscle where are the neurons located among this? |
On top of the luman tube called a submucosal plexus and in between the circular and longitudinal smooth muscle called myenteric plexus.
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Enteric nervous system:
Submucosal Plexus is made up of what type of neurons and what does it detect? |
It is mostly sensory neurons and detects the stretch of the intestines, stomach and esophagus. As well as hormones in the blood and chemicals in the lumen.
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Enteric nervous system:
Myenteric Plexus is made up of what type of neurons and what does it detect? |
It is mostly motor neurons and controls contractions of esophagus, stomach and intestins. As well as contracts gall bladder, digestion secretions and diameter of digestive blood vessels (to bring in or move out blood).
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Motivation and Behavior:
What is motivation? |
The driving force behind behavior, the urge to do something.
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Motivation and Behavior:
Things in the body compete for goals, list a few. |
hunger
bathroom listen to ipod |
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Motivation and Behavior:
the __________ is what determins which one you will do. |
magnitude of the motivation
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Motivation and Behavior:
Some of these motivations are part of what type of feed back? |
Negative ie use the restroom.
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Motivation and Behavior:
Many motivation arise from ___________ loops of internal variables. |
homeostatic feedback
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Motivation and Behavior:
Hunger: What is it affected by? |
Mood
Short term energy levels (blood glucose levels) long term energy levels (fat) |
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Motivation and Behavior:
Hunger: Long term regulation of energy has a goal what is it? |
To maintain energy balance, the body has a set point for fat storage.
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Motivation and Behavior:
Hunger: Can you change the set point of Long term regulation of energy? |
Yes, but it is hard to do, and is controlled by your brain.
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Motivation and Behavior:
Hunger: Where is the set point located in the brain? |
The hypothalamus.
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Motivation and Behavior:
Hunger: How does fat communicate its volume to the brain? |
Leptin which is secreted by fat cells. The amount of fat is proportional to the level of the amount of leptin produced. So the brain measure the leptin levels.
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Motivation and Behavior:
Hunger: If you have increased calories in the blood over the long term it will lead to? |
an increase in fat in your body.
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Motivation and Behavior:
Hunger: increas calories in blood _____ fat, and ____ Leptin in blood. |
increas, increase.
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Motivation and Behavior:
Leptin receptors bind to what part ______ of the hypothalamus? |
arcuate nucleus
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Motivation and Behavior:
what two effects does the arcuate nucleus have on the hypothalaums. |
1. Turns on neurns in the Paraventricular zone and Lateral Zone
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Motivation and Behavior:
When the paraventricular zone is activated it goes through the Autonomic nervous system and activates which ANS system leading to _________. |
sympathetic nervous
increased calorie burning. |
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Motivation and Behavior:
When the paraventricular zone is activated it goes through the Autonomic nervous system and also activates the __________ system releasing _________. |
puitutary
thyroid hormone |
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Motivation and Behavior:
When the lateral zone is activated it changes motivation/behavior leading to feeling ______ leading to a _____ in calorie intake? |
motivation/behavior
decrease in hunger & Increase in Satiety (feeling full) leading to a decrease of calorie intake |
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Motivation and Behavior:
What are the three overall responses that Leptin detection produce? |
Autonomic response
Hormone response Behavior response. |
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Motivation and Behavior:
Hunger: short term regulation of energy has a goal what is it? |
to regulate the amount of glucose in the blood
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Motivation and Behavior:
Hunger: short term regulation of energy is regulated by? |
regulated by the hypothalamus
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Motivation and Behavior:
Short term regulation of energy is regulated by the hypothalamus through input from? so all of these get detected and go up to the hypothalamus. |
1. Glucose in Blood
2. Insulin in Blood 3. Gastric distension (via stretch receptors) 4. Levels of cck a hormone |
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Motivation and Behavior:
If there is a decrease in glucose, insulin, gastric distension, or cck the hypothalamus? |
sends a signal to the paraventricular zone (autonomic and hormonal control) decreasing your metabolism.
And the lateral zone (motivational) causes an increase in food intake. |
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Gender diff in cognition:
Which is better verbally, male or female? |
Female
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Gender diff in cognition:
Which is better spatially, male or female? |
male
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Gender diff in cognition:
The differences between men and women in the verbal and spatial areas was Huge. T or F |
False it was tiny
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Masculinization of the brain:
Why do men act differently compared to women? |
testosterone masculinizes the brain.
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Masculinization of the brain:
if there were no testosterone in the brain, all people would be women. T or F |
true
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Developing males have _____ testosterone levels, and females have _____ testosterone levels.
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high
low |
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Sex Chromosomes:
xx = xy = |
Female
male |
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Sex Chromosomes:
The y chromosome contains the _____ gene |
SRY
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Sex Chromosomes:
The SRY gene controls ______ traites. |
Multiple
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Sex Chromosomes:
The SRY gene turns on what? |
other genes which code for maleness including testicals which produce testosterone.
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Sex Chromosomes:
Does the genes or hormone controls weather or not you look at act like a female? |
Its the hormones
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Sex Chromosomes:
If a female brain is saturated with testosterone, the body will look ______ and they act like _______ |
Females
males |
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Sex Chromosomes:
In humans xy = male. If they have a defect in the androgen receptor gene, they have androgen insensitivity. What does this mean? |
Have male parts, but not testosterone binding sites, so on the outside they look female, the testicals never dropped. However they don't menstrate and are infertil. The look and act like female. There brain was never masculinized.
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Sex Chromosomes:
Congenital adrenal hyperplasia - what is it? |
It is when adrenal glands over produce testosterone which affect the rest of the body.
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If congenital adrenal hayperplasia happens to a man it...?
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doesn't really have a big effect.
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If conGENITAL adrenal hayperplasia happens to a women it...?
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there external genetalia are intermediate in size. They also act like tom boys and have a tendency to be homosexual due to masculenity of the brain.
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Effects On Neurons:
Increase testosterone leads to an decrease in _______ ______ neurotransmitter production. |
GABA an inhibiory |
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Effects On Neurons:
Increase testosterone leads to an ______ in the number of _______ on dendrites. |
increase
connections |
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Effects On Neurons:
Increase testosterone leads the a ______ in _______ channels. |
increase
NMDA (that Mg plug preventing Ca2+ from entering the cell) |
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Sexual Behavior:
Monogamy is found in some Vols to be due to _____ and _____ receptor sites. |
Vasopressin
Oxytocin |
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Sexual Behavior:
Monogamy found in Prairie Vols was due to _____ and ____ of the receptors. |
Quantity and location.
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In Prairie Vols, during mating males have an increase in vasopressin leading to pair bonding with females. T or F
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True
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In Prairie Voles, females have an increase in oxytocin causing an increase in maternal insticts. T or F
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True
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Vasopression antagonists in male prairie voles prevents pair bonding. T or F
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True
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In Montain Voles, does vasopression have an effect?
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no.
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Biological Rhythms:
What is an EEG? |
A measurement of the neural activity, recorded from the scalp surface.
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Biological Rhythms:
the negative Ions are on the ______ side of the neuron and the (+) ions are on the _____ side of the neuron creating an ____ ______ |
dendrite
transmitter electric field. |
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Biological Rhythms:
The neurons in your cortex are alliend in what orientation? |
In the same orientation with there axons going away from the scalp surface and their dendrites go towards the scalp.
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Biological Rhythms:
The cortex neurons are orientated in the same direction creating what? |
They create electric fields allowing it to be detected by the EEG. A single neuron firing is not strong enough to be detected.
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Biological Rhythms:
A non synchronous firing EEG looks like what? |
small quick waves (each firing at there own speed)
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Biological Rhythms:
A synchronous firing EEG looks like what? |
a large slow wave (each firing at the same time) *they have connections between them which they can determine what its neighbor is doing.
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Biological Rhythms:
What is the function of EEG's? |
No one knows.
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Biological Rhythms:
If you get a large enough brain rhythm, it can cause? |
a seizure.
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Biological Rhythms:
How can you tell what type of seizure someone is having? |
by measuring the degree the rhythm spreads across the body.
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Biological Rhythms:
What is Epilepsy? |
It is repeated seizures.
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Biological Rhythms:
What are some causes of epilepsy and how do they treat them? |
Durgs
overstimuli of sensory neurons and GABA is used to treat them. It is an agonist. |
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Biological Rhythms:
List the 2 types of seizures |
1. General seizure
2. Partial sezure |
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Biological Rhythms:
General seizures involve ______ area. |
The entire cortex - massive senrenous activity that goes throughout the cortex.
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Biological Rhythms:
Partial seizures involves a ______ area. |
Limited
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Biological Rhythms:
Partial seizures can have different side effects list some. |
can happen in different areas causing symptoms in the area it is effected.
Clonic Movement - starts and stops and starts and stops Odd sensations - depending on the area effected. ie tast buds taste weird. Hallucinations dejavu - perception you have done something before. |
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Sleep & Rhythms of the Brain:
How long are we asleep in our lifetime? |
1/3 are spent sleeping
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Sleep & Rhythms of the Brain:
How long are we dreaming in our lifetime? |
1/12 are spent sleeping
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Sleep & Rhythms of the Brain:
Sleep is universal in vertabrates. T or F |
True
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Sleep & Rhythms of the Brain:
Since sleep is universal it has to serve a purpose? T or F |
True
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Sleep & Rhythms of the Brain:
Define Sleep: |
It is a readily reversible state of reduced responsiveness and interaction with the environment.
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Sleep & Rhythms of the Brain:
What are the 2 changes of sleep. |
1. Non-REM
2. REM |
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Sleep & Rhythms of the Brain:
Non REM sleep wave patterns are_____ and activation of the ______ nervous system and decreases ______ activity and decreases______ input to the cortex. |
Large
parasympathetic Brain Sensory |
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Sleep & Rhythms of the Brain:
REM sleep wave patterns are_____ and Rapid ______ ______ and increases______ consumption of the brain (even more than when your awake) and your body is in a state of _______ your body ______ control stops. |
Small (non-sencranous) and quick like when your awake
eye movement oxygen consumption paralysis temperature |
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Bio Rhythms:
When your awake your rhythm is Alpha, Beta, Delta, or Theta |
Alpha
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Bio Rhythms:
When your asleep (non REM) your rhythm is Alpha, Beta, Delta, or Theta |
Theta, Delta, Theta
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Bio Rhythms:
When your asleep (REM) your rhythm is Alpha, Beta, Delta, or Theta |
Beta
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Bio Rhythms:
Alpha wave is...? |
Small and Quick
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Bio Rhythms:
Beta wave is...? |
small and quick
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Bio Rhythms:
Delta wave is...? |
large and slow
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Bio Rhythms:
Theta wave is...? |
Medium
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Bio Rhythms:
What do you call the area of sleep that includes the non REM and REM cycles? |
Ultradian Rhythm Cycle.
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Bio Rhythms:
As you go through the sleep cycles between REM and non REM the ______ gets longer and _____ gets shorter? |
REM (25% of the whole sleep cycle)
non REM (75% of the whole sleep cycle) |
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Bio Rhythms:
What is the average time a human sleeps? |
7.5 hours
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Circadian Rhythm:
What is circadian rhythm? |
It is a daily rhythm based on a 24 hr day.
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Circadian Rhythm:
What clock runs the Circadian Rhythm and how can it be adjusted? |
An internal clock that can be adjusted by external stimuli.
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Circadian Rhythm:
What does the term Free-running mean? |
A person who's internal clock is working with NO external cues.
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Circadian Rhythm:
All humans Circadian Rhythm is the same? T or F |
False, it is per person.
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Circadian Rhythm:
some people have a 26 hr Circadian Rhythm what would you call this person? |
a night person
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Circadian Rhythm:
some people have a 22 hr Circadian Rhythm what would you call this person? |
a morning person
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Circadian Rhythm:
what resets a Circadian Rhythm and what is the most powerful cue? |
An external cue
light |
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Pituitary gland:
The Periventricular zone: Receives? Regulates? Contains? |
Recieves fetinal information
Regulates ANS Contains Neurosecretory neurons, which project to the pituitary gland. |
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Pituitary gland:
Lateral Zone: Affects? Drives? |
Affects motivation
Drives behavior |
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Pituitary gland:
The anterior pituitary gland is what type of tissue? |
A secretory tissue
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Pituitary gland:
Vasopressin is released from which Pituitary gland? |
The posterior
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Pituitary gland:
Oxytocin is released from which Pituitary gland and is triggered by what? |
The posterior
pressure on the cervix and stimulation of the nipples. |
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Pituitary gland:
Anterior pituitary is mostly neural tissue. T or F |
False, it is mostly seretory
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Pituitary gland:
The anterior pituitary neurons are parvocellular neurons from the periventricular zone. T or F |
True
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Pituitary gland:
how many capillary beds does the anterior pituitary gland have? |
2, parvocellular neruons come in and affect capillary bed 1, it drains into capillary bed 2 and it passes on the information to the secretroy cells.
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Pituitary gland:
Parvocellular neurons are from _____ zone, and are larger or smaller than magnocellular neurons? They release _____ hormonse and project to the _____ pituitary |
periventricular zone
smaller tropic anterior |
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Pituitary gland:
Tropic hormones do what? |
affects the release of another hormone
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Pituitary gland:
Secretory cells _____ and ____ hormones, while parvocellular cells ______ production/release of hormones. |
produce
release increase the |
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Pituitary gland:
List the hormones released by the anterior pituitary gland. |
1. GH
2. Prolactin 3. FSH 4. LH 5. ACTH - tropic hormone 6. TSH - tropic hormone |
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Hypothalamus -> TRH -> anterior pituitary -> TSH -> Thyroid Gland -> Thynxine T3 & T4
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when Thynxine is produced it has a negative feed back on Anterior pituitary and hypothalamus telling it to stop producing TRH
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Pituitary gland:
Negative feed back levels allows more control of substance level in the body. T or F |
True
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Autonomic Nervous System:
The ANS has 3 branches, what are they? |
1. sympathetic NS
2. Parasympathetic NS 3. Enteric NS @ digestive system |
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Autonomic Nervous System:
The Sympathetic NS Goal is? |
short term survival
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Autonomic Nervous System:
the ANS uses conscious control. T or F |
False, the body is wired to do this.
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Autonomic Nervous System:
The SNS and PNS both have global wide spread effects. T or F |
True
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Autonomic Nervous System:
The SNS seem to work opposing one another, the SNS increases flow to skeletal muscle and skin, while the PNS decreases blood flow to the skeletal muscle and skin. T or F |
True
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Autonomic Nervous System:
The Parasympathetic NS effects the Pupil, heart, stomach as well as the ___________ |
sympathetic NS
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Circadian Rhythm:
If you destroy your hypothalamus, you will lose your Circadian Rhythm. T or F |
True
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Circadian Rhythm:
What region of the hypothalamus is the Circadian Rhythm located? |
The suprachiasmatic nucleus
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Circadian Rhythm:
Where is the suprachiasmatic nucleus located? |
Close to the optic chaism
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Circadian Rhythm:
Neurons of the SCN are affected by? |
External cues
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Circadian Rhythm:
The DNA in the suprachiasmatic nucleus produces a ________ protein. |
Time keeping
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Circadian Rhythm:
Can external cues speed up or slow down the production of protein? |
Yes.
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Circadian Rhythm:
if protein binding sites are blocked what happens to the Circadian Rhythm? |
you become free running and when it starts up again, you start off where your left off in the wave pattern.
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Memory:
List the 2 types of memory. |
1. Declarative
2. Non Declarative |
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Memory:
Declarative memory contains facts and events, while non declarative contains skills, habbits, classical conditioning. T or F |
True
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Memory:
Declaratie memory is hard to learn and hard to forget. T or F |
False, it is easy to learn and easy to forget
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Memory:
non declarative memory is hard to learn and hard to forget. T or F |
True
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Memory:
How long does short term memory last?q |
a few seconds to a few minutes.
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Memory:
turning short term memories into long term memories is called? |
Consolidation
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Loss or Memory:
There are two types of Amnesia called? |
1. Retrograde
2. Anterograde |
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Memory:
Retrograde amnesia you can't ______ memories. Anterograde amnesia you can't _____ memories. |
remember
form new |
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Memory:
Where are memories stored? |
All over the brain
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Memory:
Cortices are activated by external stimuli. T or F |
True
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