SCI 220 Week 7 Quiz | Full Questions and Answers | 2026 Update | 100% Correct - Nightingale College.

SCI 220 Week 7 Quiz | Full Questions and Answers | 2026 Update | 100% Correct - Nightingale
College.

Question 1

Nerves that contain mostly afferent fibers are called _____ nerves.

 A. Sensory ✅
 B. Motor
 C. Mixed
 D. Schwann

Answer: A. Sensory



Question 2

Dendrites conduct impulses _____ cell bodies.

 A. Toward ✅
 B. Away from
 C. Within
 D. None of the above is correct

Answer: A. Toward



Question 3

A neuron that transmits a nerve impulse toward the central nervous system is called a(n):

 A. Motor neuron
 B. Sensory neuron ✅
 C. Interneuron
 D. Bipolar neuron

Answer: B. Sensory neuron



Question 4

Which of the following is the deepest connective tissue layer of a nerve?

,  A. Endoneurium ✅
 B. Perineurium
 C. Epineurium
 D. Fascicle

Answer: A. Endoneurium



Question 5

Interneurons reside in the:

 A. CNS and peripheral nervous system (PNS)
 B. CNS only ✅
 C. PNS only
 D. None of the above is correct

Answer: B. CNS only



Question 6

In the human nervous system:

 A. Most of the cells are neurons.
 B. Most of the cells are glia cells.
 C. There are almost equal numbers of glia cells and neurons. ✅
 D. The ratio of cells is unknown because of the complexity of the nervous system.

Answer: C. There are almost equal numbers of glia cells and neurons.



Question 7

The part of the nervous system that transmits impulses from the CNS to the skeletal muscle
is the:

 A. Somatic nervous system ✅
 B. Autonomic nervous system
 C. Central nervous system
 D. Afferent division