Reading...
Play button
Play button
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;
38 Cards in this Set
- Front
- Back
|
Define homeostasis
|
The dynamic constancy of the internal physiological environment.
|
|
|
The ______ detects deviation from ____ _______ and activates effectors
|
Sensor
Set point |
|
|
What processes the signals given to the sensor?
|
The integrating center
|
|
|
What does it mean to be osmotically active?
|
The aspect of a solute that describes it's ability to cause movement of water
|
|
|
Positive feedback maintains homeostasis.
T of F |
F
Negative |
|
|
What is negative feedback?
|
The response in a particular process or activity that is the opposite of an initial process or activity.
|
|
|
A thermostat that increases in temperate in response to a rise in temperature.
What is this an example of? |
Positive feedback
|
|
|
What are two examples of carrier mediated transport?
|
Active and facilitated diffusion
|
|
|
What happens when you drink ocean water?
|
Causes hypertonicity of the blood stream and the tissue cells release water in order to establish equilibrium
|
|
|
Why does edema occur when a person with high blood pressure eats
foods with high salt content? |
It causes higher blood pressure due to presence of more salt in blood, can lead to peripheral and pulmonary edema
|
|
|
What is the alimentary canal?
|
A one way digestive tract through the body
|
|
|
Disaccharide + water ------->
|
Monosaccharide
|
|
|
Peptide + water ------->
|
2 AA
|
|
|
Fat + water -------->
|
Fatty acids + glycerol
|
|
|
Where does carbohydrate digestion begin?
|
The mouth
|
|
|
Lipid digestion begins in the stomach.
T of F |
F
small intestines |
|
|
What is the enzyme used in protein digestion?
|
Pepsin
|
|
|
What is the inactive form of pepsin?
|
Pepsinogen
|
|
|
What do the goblet, parietal, and chief cells secrete?
|
Goblet- mucus
Parietal- HCl Chief- pepsinogen |
|
|
What is the main site of absoprtion?
|
Small intestine
|
|
|
What does the large intestine produce?
|
Vitamins K & B and folic acid
|
|
|
Enzymes increase activation energy.
T of F |
F
decrease activation energy |
|
|
Proteins are only partially digested in the stomach. Where does digestion finish?
|
Small intestines, when it comes in contact with chyme
|
|
|
What does invertase do?
|
Reduces sucrose to fructose and glucose
|
|
|
What major hormones does the adrenal cortex secrete?
|
Glucocorticoids
Aldosterone |
|
|
What does the adrenal medulla secrete?
|
Epinephrine
|
|
|
ADH & oxytocin are secreted from what?
|
posterior pituitary gland
|
|
|
What does the anterior pituitary gland secerete?
|
trophic hormones
|
|
|
Secretin and cholecystokinin are secreted from what?
|
Small intestine
|
|
|
FLAT PIG
|
follicle stimulating hormone
lutenizing hormone adrenococorticotropic hormone thyroid stimulating hormone prolactin growth hormone |
|
|
Which hormone is responsible for milk production?
|
Prolactin
|
|
|
What hormone is the milk ejection reflex?
|
Oxytocin
|
|
|
Name the three steroid hormones?
|
Mineralocorticoids
Glucocorticoids Sex steroids |
|
|
Hyperthyroidism is also known as?
|
Grave's disease
|
|
|
What does the placenta secrete large amounts of?
|
estrogen, progesterone, and human chorionic gonadotropin
|
|
|
The melatonin hormone is secreted by what organ?
|
Pineal gland
|
|
|
Melatonin pills are used to treat what?
|
insomnia
|
|
|
Seasonal affective disorder (SAD) and winter depression are caused by what?
|
Increased melatonin levels
|
