Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
91 Cards in this Set
- Front
- Back
Learning about the nervous system helps us know how messages that are sent to and from the brain cause ________
|
behavior
|
|
The nervous system controls:
|
- Emotions
- Movements - Thinking - Behavior |
|
The nervous system is _____ __ ____
|
never at rest
|
|
Central Nervous System (CNS):
|
- Brain
- Spinal cord |
|
Peripheral Nervous System (PNS):
|
Nerves branching beyond the spinal cord into the body
- Somatic Nervous System - Autonomic Nervous System |
|
Protection of brain:
|
skull and layers of sheathing
|
|
Protection of Spinal Cord:
|
vertebrae
|
|
Protection of Peripheral Nerves:
|
layers of sheathing
|
|
The long, thin cells of nerve tissue along which messages travel to and from the brain
|
Neurons
|
|
Basic Parts of the Neuron:
|
- Dendrites
- Cell Body - Axon - Axon Terminals |
|
short, thin fibers that protrude from the cell body
|
Dendrites
|
|
Dendrites receive impulses, or messages from other _______ and send them to the cell body
|
neurons
|
|
contains the nucleus
|
Cell body
|
|
carries the impulses from the cell body toward the axon terminals
|
Axon
|
|
release neurotransmitters to stimulate dendrites of the next neuron
|
Axon terminals
|
|
the gap that exists between individual nerve cells or a junction between the neurons; less than one millionth of an inch wide
|
Synapse
|
|
the chemicals released by neurons, which determine the rate at which other neurons fire
|
Neurotransmitters
|
|
The part of the peripheral nervous system that controls voluntary movement of skeletal muscles
|
Somatic Nervous System (SNS)
|
|
The part of the peripheral nervous system that controls internal biological functions
|
Autonomic Nervous System (ANS)
|
|
prepares the body for dealing with emergencies or strenuous activity
|
Sympathetic nervous system
|
|
works to conserve energy and enhances body’s ability to recover from strenuous activity
|
Parasympathetic nervous system
|
|
The Brain is Composed of Three Parts:
|
- Hindbrain
- Midbrain - Forebrain |
|
A part of the brain located at the rear base of the skull that is involved in the basic processes of life
|
Hindbrain
|
|
Hindbrain:
|
- Pons
- Cerebellum - Medulla |
|
A small part of the brain above the pons that arouses the brain, integrates sensory information, and relays it upward
|
Midbrain
|
|
A part of the brain that covers the brain’s central core, responsible for sensory and motor control and the processing of thinking and language. The higher thinking processes (those that make us unique) are housed here
|
Forebrain
|
|
Forebrain:
|
- Thalamus
- Hypothalamus - Cerebral Cortex - Cerebrum |
|
Regulates our emotions and motivations
|
Limbic System
|
|
Found in the core of the _________
|
forebrain
|
|
Limbic system composed of:
|
hypothalamus, amygdala, thalamus, and hippocampus
|
|
The different regions into which the cerebral cortex is divided:
|
- Occipital
- Parietal - Temporal - Frontal |
|
- Visual signals are processed
- damage here causes visual problems including partial or total blindness |
Occipital Lobe
|
|
Concerned with information from the senses all over the body
|
Parietal Lobe
|
|
Concerned with hearing, memory, emotion, speaking and advance visual processing
|
Temporal Lobe
|
|
Concerned with organization, planning, creative thinking and working memory (events that happened very recently)
|
Frontal Lobe
|
|
TOPIC
|
Left and Right Hemisphere
|
|
Left and right sides __________ each other
|
complement
|
|
Roughly ______ ______ of each other
|
mirror images
|
|
______ ________ carries messages back and forth between two hemispheres to jointly control human functions
|
Corpus callosum
|
|
Each hemisphere connected to one half of the body in a _____-_____ fashion
|
criss-cross
|
|
Left Hemisphere:
|
- Verbal
- Mathematical - Analytical |
|
Right Hemisphere:
|
- Nonverbal
- Spatial - Holistic |
|
speaking, understanding language, reading, writing
|
Verbal
|
|
analyzing separate pieces that make up a whole
|
Analytical
|
|
understanding simple sentences & words
|
Nonverbal
|
|
solving spatial problems such as geometry, enjoying
art |
Spatial
|
|
combining parts that make up a whole
|
Holistic
|
|
TOPIC
|
Split Brain Operations
|
|
Corpus callosum is severed so no _____________ between hemispheres
|
communication
|
|
Lessons number and severity of grand mal ________
|
seizures
|
|
Intelligence, personality, and emotions remain practically _________
|
unchanged
|
|
Changes in ______________
|
verbalization
|
|
How Psychologists Study the Brain:
|
- Recordings
- EEG - Stimulating - Lesions - Accidents - Images - CT scan - PET scan - MRI |
|
90% of _______ are the result of narrowed arteries to the brain or blocked arteries causing severely reduced blood flow depriving brain cells of oxygen and nutrients. Cells begin to die within minutes
|
strokes
|
|
___________ _______ occur when a blood vessel in your brain leaks or ruptures (high blood pressure, weak spots in vessel walls)
|
Hemorrhagic strokes
|
|
Types of Dementia include:
|
- Alzheimer’s disease
- Lewy body dementia - Vascular dementia - Pick’s disease - Reversible dementia |
|
Damage to the brain as the result of injury
|
Traumatic Brain Injury
|
|
The second communication system for sending information to and from the brain is the _________ ______
|
endocrine system
|
|
In charge of body processes that happen slowly, such as ____ ______
|
cell growth
|
|
Works together with _______ ______ to help body function properly
|
nervous system
|
|
It is a chemical communication system, using ________, by which messages are sent through the ___________
|
hormones; bloodstream
|
|
The foundations of the endocrine system are the ________ and ______
|
hormones and glands
|
|
The Endocrine System is Instrumental in:
|
- Regulating mood
- Growth and development - Tissue function - Metabolism - Sexual function and reproductive processes |
|
Chemical substances that carry messages through the body in blood
|
Hormones
|
|
The hormones transfer information and instructions from one set of _____ to another
|
cells
|
|
Hormone levels can be influenced by factors such as:
|
- Stress
- Infection - Changes in balance of fluid & minerals in blood |
|
The Endocrine Glands:
|
- Pituitary Gland
- Thyroid Gland - Adrenal Glands - Sex Glands - Pancreas |
|
the center of control of the endocrine system
|
Pituitary Gland
|
|
secretes a large number of ________ many of which control the output of hormones by other endocrine glands
|
hormones
|
|
directed by the ___________ (midbrain)
|
hypothalamus
|
|
involved in regulating and storing ________
|
nutrients
|
|
Produces the hormone thyroxine that stimulates chemical reactions that are important to all tissues of the body
|
Thyroid Gland
|
|
too little thyroxine makes people feel lazy and lethargic
|
Hypothyroidism
|
|
too much thyroxine may cause people to lose weight and sleep and to be overactive
|
Hyperthyroidism
|
|
Triangular gland found on top of each kidney
|
Adrenal Glands
|
|
Consists of two parts:
|
- Adrenal cortex
- Adrenal medulla |
|
produce the male sex hormone testosterone (found in both sexes); important in the physical development of males in the prenatal period and in adolescence
|
Testes
|
|
produce the female hormones estrogen and progesterone (found in both sexes); important in the development of female sex characteristics & regulation of reproductive cycle
|
Ovaries
|
|
Produces insulin and glucagon
|
Pancreas
|
|
Maintains a steady level of _______, or sugar, in the blood
|
glucose
|
|
Keeps the body supplied with fuel to produce and maintain stores of ______
|
energy
|
|
fails to produce enough insulin
|
Type 1 diabetes
|
|
body unable to respond to insulin normally
|
Type 2 diabetes
|
|
Hormones and neurotransmitters both work to affect the _______ ______
|
nervous system
|
|
The same ________ may be used as both
|
chemical
|
|
released into the blood; slow and widespread communication
|
Hormone
|
|
released right beside the cell to excite or inhibit; rapid and specific messages
|
Neurotransmitter
|
|
the genetic transmission of characteristics from parents to their offspring
|
Nature or Heredity
|
|
factors such as family, culture, education, and individual experiences
|
Nurture or Environment
|
|
the basic building blocks of heredity passed from parent to child
|
Genes
|
|
The effect genes have on behavior occur through their roles in building and modifying _______ _________ of the body
|
physical structures
|