Question

a nerve composed of fibers carrying impulses to the brain or spinal cord from muscles or glands is called an efferent nerve.

1. true
2. false

question 12 (2.5 points)
which plexus supplies motor movement to the posterior of the legs and thighs?
cervical
brachial
lumbar
sacral

Explanation:

First Question (True/False)

Efferent nerves carry impulses from the brain/spinal cord to muscles/glands (motor output). Afferent nerves carry impulses to the brain/spinal cord from muscles/glands (sensory input). So the statement is false.

• Cervical plexus: Supplies neck/shoulder.
• Brachial plexus: Supplies upper limb.
• Lumbar plexus: Supplies anterior thigh/leg.
• Sacral plexus: Supplies posterior thigh/leg. So the correct answer is Sacral.

Answer:

1. False

Question 12 (Multiple Choice)