Chapter 2 Ppt Learning Check

Question 1

Sherrington studied ——-, which are automatic muscular responses to stimuli.

Answer 1

Reflexes

Question 2

What is the proper ordering of a reflex arc?

Answer 2

Sensory neuron, interneuron, motor neuron

Question 3

A certain weak stimulus produces no reflexive responses, but a rapid repetition of that stimulus may produce such a response. What is this phenomenon called?

Answer 3

Temporal summation

Question 4

A graded depolorization is known as an —-.

Answer 4

EPSP

Question 5

A temporary hyperpolorization is known as an —-.

Answer 5

IPSP

Question 6

Depolarization is to —– as hyperpolarizaton is to —–.

Answer 6

Excitation; Inhibition

Question 7

What is the primary difference between temporal summation and spatial summation?

Answer 7

Spatial summation depends on contributions from more than one sensory neuron

Question 8

Temporal summation is to ——– as spatial summation is to ——–.

Answer 8

Time;location

Question 9

The catecholamines include ———.

Answer 9

Epinephrine, norepinephrine, and dopamine

Question 10

You are eating a food containing tryptophan. What can you consume with it to increase its entry to the brain?

Answer 10

Carbohydrates

Question 11

Neuropeptides are synthesized in the ——.

Answer 11

Cell body

Question 12

A receptor can directly open a channel and thereby exert an —— effect, or it can produce slower but longer —– effects.

Answer 12

Ionotropic….metabotropic

Question 13

Many neurons release neuropeptides mostly from ——-.

Answer 13

Dendrites

Question 14

COMT and MAO are ——-.

Answer 14

Enzymes that convert catecholamines into inactive chemicals

Note:
COMT- Catechol-O-methyltransferase
MAO- L- Monoamine oxidase

Question 15

What happens to acetylcholine after it attaches to a receptor on the postsynaptic cell?

Answer 15

It gets broken down into two components