test 2 reveiw

Question 1

neural crest

Answer 1

a temporary group of cells that arise from the embryonic ectoderm germ layer
-develop to create neural groove

Question 2

neural groove

Answer 2

depressed mid-region from the formation of the neural fold

Question 3

Hebbian synapses

Answer 3

fire together wire together

Question 4

motor unit

Answer 4

a motor neuron and all the muscle fibers it intervenes

Question 5

somatosensory cortex homunculus

Answer 5

hands take up most space
then arms, face, legs,

Question 6

antagonist muscles

Answer 6

When one muscle group contracts, it stretches the other group

Question 7

structure of organ of corti

Answer 7

three rows of outer hair cells and one row of inner hair cells. Vibrations caused by sound waves bend the stereocilia on these hair cells

Question 8

tonotopic mapping

Answer 8

They are arranged in a map of low to high frequency.
At higher levels, auditory neurons are excited by certain
frequencies and inhibited by neighboring ones, resulting in
the ability to discriminate tiny differences.

Question 9

pathway of olfaction

Answer 9

olfactory epithelium -> olfactory bulb ->glomerulus -> hypothalamus, amygdala, prepyriform cortex

Question 10

decibel system

Answer 10

higher number = louder

Question 11

the basic tastes

Answer 11

salt, sweet, sour, bitter, umami