ati Flashcards
gonadotropin releasing hormone
produced in hypothalamus and stimulates release of follicle-stimulating hormone and luteinizing hormone from pituitary gland
follicle stimulating hormone
helps stimulate growth of eggs in ovaries and control menstrual cycle
luteinizing hormone
helps trigger ovulation (release of an egg from the ovary
testosterone
hormone produced by testes that help to produce sperm and develop male characteristics
estrogen
hormone produced by the ovaries that helps to develop female characteristics and regulates menstrual cycle
deoxygenated blood
veins, right atrium, right ventricle, lungs
oxygenated blood
lungs, left atrium, left ventricle, aorta, body
capillaries
attach veins to arteries
function of respiratory system
maintain blood ph, regulate bp, body temp
central nervous system
brain and spine, communications and actions
peripheral nervous system
branches off spine, sends signals from brain to body
cell body
nucleus and organelles
dendrites
short, branch-like extensions that generate electrical impulses
axon
long extension that transmits signals to other neurons
myelin sheath
fatty substances that covers axon and helps increase speed of nerve impulses
synapses
space between terminal buttons of one neuron and the dendrites of another
sensory (afferent) neurons
sends messages to central nervous system
motor (efferent) neurons
sends messages to muscles
somatic
voluntary
autonomic
involuntary
nerve electrical impulse
brain, spinal cord, axon, muscle nerve , muscle fiber
pituitary gland
growth hormone
thyroid
metabolism
parathyroid
regulation of calcium within blood
thymus gland
helps develop immune system
adrenal gland
fight or flight response epinephrine
pancreas
insulin and glucagon regluates blood sugar
positive feedback
amplifies change in given direction
negative feedback
reverses change or slows it down
