ap4 quiz 1&2

Question 1

1. Sensory afferent division includes all, except
   a. Somatic afferents from skin muscle and joints
   b. Visceral afferents from internal organs
   c. Brain afferents

Answer 1

a. Somatic afferents from skin muscle and joints

Question 2

2. Voluntary nervous system in under conscious control
   a. True
   b. False

Answer 2

a. True

Question 3

3. What is not true about autonomic nervous system?
   a. Controls visceral (internal, involuntary motor functions
   b. Conducts impulses from CNS to cardiac muscle
   c. Conducts impulses from CNS to skeletal muscles
   d. Conducts impulses from CNS to glands
   e. Conducts impulses to smooth muscles

Answer 3

c. Conducts impulses from CNS to skeletal muscles

Question 4

4. Which nervous system conserves energy?
   a. Sympathetic nervous system
   b. Parasympathetic nervous system
   c. Afferent division of CNS

Answer 4

b. Parasympathetic nervous system

Question 5

5. Which cells do not belong to neuroglial cells?
   a. Astrocytes
   b. microglial cells
   c. ependymal cells
   d. oligodendrocytes
   e. Ganglional cells

Answer 5

e. Ganglional cells

Question 6

6. Which structures are covered with myelin?
   a. Dendrites
   b. Nerve cell bodies
   c. Axons
   d. Neurotransmitter producing bubbles

Answer 6

b. Nerve cell bodies

CNS nerve fibers

Question 7

7. Which nerves pass information faster, the myelinated or unmyelinated?

Answer 7

myelinated

Question 8

8. Which structure is subject of neurogenesis in adults?

Answer 8

hippocampus

Question 9

9. What do you call activity dependent restructuring o the nerves?
   a. Neurogenecity
   b. Plasticity
   c. Autostructuring
   d. Regeneration

Answer 9

b. Plasticity

Question 10

10. What is not true about axons?
    a. Each neuron has a single axon, long or short, long ones are called nerve fibers
    b. Significant branching occurs at the hillock rather than at the terminal section
    c. The neurotransmitter containing bubbles are at the terminals
    d. Each neuronal axon produces a single type of neurotransmitter

Answer 10

b. Significant branching occurs at the hillock rather than at the terminal section

Question 11

Match:
11. Is comprised of cell bodies and short unmyelinated fibers___
12. Represent information on move___
13. Represent information processing___
14. Myelinated fibers___

a. White matter
b. Grey matter

Answer 11

11. B
12. A
13. B
14. A

Question 12

15. In a typical neuron, resting membrane potential that makes the membrane polarized, is
    a. -50mV
    b. -60mV
    c. -70mV
    d. -80mV

Answer 12

c. -70mV

Question 13

16. At which point the nerve impulse goes for action?
    a. Polarization
    b. Depolarization
    c. Repolarization
    d. Hyperpolarization

Answer 13

b. Depolarization

Question 14

17. Resting state is restored through
    a. Na/K pump
    b. Na/Ca pump
    c. Ca/K pump

Answer 14

a. Na/K pump

Question 15

18. Which mineral is required for the vesicles to fuse with the axonal terminal membrane an
    release neurotransmitter?
    a. Na
    b. K
    c. Cr
    d. Ca

Answer 15

d. Ca

Question 16

19. What is not the destiny of the neurotransmitter after it is released into synaptic cleft?
    a. Some molecules will attach to the postsynaptic neuron’s or muscle’s receptor
    b. Degradation by the enzymes
    c. Reuptake by the presynaptic neuron
    d. Diffusion out of the synaptic cleft
    e. Permanent attachment to the receptor

Answer 16

e. Permanent attachment to the receptor

Question 17

20. What is the most abundant neurotransmitter in the PNS?
    a. Epinephrine
    b. Norepinephrine
    c. GABA
    d. Acetylcholine

Answer 17

c. GABA