In-Class Questions

Question 1

Cells that myelinate brain neurons are called

Answer 1

Oligodendrocytes

Question 2

The most common type on neuron in the brain is the

Answer 2

motor neuron

Question 3

Do action potentials travel faster on myelinated or unmyelinated neurons?

Answer 3

Myelinated

Question 4

True or False?
In a myelinated neuron, the action potential jumps from synapse to synapse

Answer 4

False

Question 5

What type of receptor is most useful in a body system that needs rapid reliable output?

Answer 5

Ionotropic receptors

Question 6

Which is not an amino acid neurotransmitter?
a. Glycine
b. Acetylcholine
c. Glutamate
d. Aspirate

Answer 6

b. Acetylcholine

Question 7

A new antismoking drug binds to nicotine receptors and stimulates them. What type is it?
a. antagonist
b. agonist
c. metabotropic
d. pleotropic

Answer 7

b. agonist

Question 8

The most sensitive neurotransmitter to alcohol is
a. dopamine
b. norepinephrine
c. GABA
d. glutamate

Answer 8

a. dopamine

Question 9

Block of what neurotransmitter will cause violent convulsions in which the body is arched and the head bent backwards?

Answer 9

Glutamate

Question 10

Amphetamine in a stimulant because it blocks reuptake of:

Answer 10

Norepinephrine

Question 11

Ectoderm cells not included in spinal cord become the

Answer 11

Skin

Question 12

A 22 year-old woman has a Zika virus infection two months after conception. Expect her son’s brain to be:
a. small, because the virus blocks neurogenesis
b. small, because the virus blocks synaptogenesis
c. large, because the virus blocks apoptosis
d. normal size

Answer 12

a. small, because the virus blocks neurogenesis

Question 13

Without sonic hedgehog protein:
a. motor cells don’t form in spinal cord
b. sensory cells don’t form in spinal cord
c. the neural plate rolls up in a tube
d. the neural plate doesn’t roll up in a tube

Answer 13

a. motor cells don’t form in spinal cord

Question 14

Esme has
a. cri-du-chat syndrome
b. down syndrome
c. Angelman syndrome
d. Rett syndrome

Answer 14

d. Rett syndrome

Question 15

The last stage of brain development is
a. synaptic reorganization
b. gilogenesis
c. homeostatic matching
d. neurotransmitter synthesis

Answer 15

a. synaptic reorganization

Question 16

Amblyopia could be perhaps prevented by a drug that is:
a. diablo agonist
b. diablo antagonist
c. glycine agonist
d. glycine antagonist

Answer 16

diablo antagonist

Question 17

Disorders of synaptic pruning include
a. pachygria and lissencephaly
b. fragile X and autism
c. Rett syndrome and microcephaly
d. none of the above

Answer 17

b. fragile X and autism