Nervous System

Question 1

Which region of the spinal cord is composed of spinal nerves: L2-S3?

A) Lumbosacral enlargement
B) Cervical enlargement
C) Conus medullaris

Answer 1

A) Lumbosacral enlargement

Question 2

The connective tissue covering the each neuronal fibre is called?

A) Epineurium
B) Perineurium
C) Endoneurium

Answer 2

C) Endoneurium

Question 3

Sensory information enters which part of the spinal cord?

A) Dorsal
B) Ventral
C) Medial

Answer 3

A) Dorsal

Question 4

Motor nerves exit the spinal cord at which location?

A) Dorsal
B) Ventral
C) Lateral

Answer 4

B) Ventral

Question 5

The Dorsal column medial lemiscus pathway brings sensory information on which of the following modalities?

A) Pain, temperature, crude touch
B) Fine touch, vibration, two-point discrimination, proprioception
C) Proprioception (joint and limb perception)

Answer 5

B) Fine touch, vibration, two-point discrimination, proprioception

Question 6

An upper motor neuron lies within which of the following?

A) Peripheral nervous system
B) Central nervous system
C) Autonomic nervous system

Answer 6

B) Central nervous system

Question 7

A polysynaptic reflex involves which of the following?

A) One sensory nerve and one motor nerve.
B) One interneuron.
C) Several interneurons and requires the coordination of several muscle groups.

Answer 7

C) Several interneurons and requires the coordination of several muscle groups.