Match each term with its description or definition.
-Group or braid of nerves formed from spinal nerves C5 to T1
A)Cauda equina
B)Ventral nerve root
C)Dorsal nerve root
D)Cervical plexus
E)Brachial plexus
F)Lumbar plexus
G)Dermatome
H)Myotome
I)Somatic reflexes
J)Autonomic reflexes

Question

Quizplus · Accepted Answer

The brachial plexus is a group or braid of nerves formed from spinal nerves C5 to T1.

Answer: B
 The ventral nerve roots are part of the spinal nerve and contain motor neurons that control muscle movement.

Answer: C
 The dorsal nerve roots are part of the spinal nerve and contain sensory neurons that transmit information from the body to the spinal cord.

Answer: D
 The cervical plexus is a network of nerves that originate from the spinal cord in the neck region (C1-C5) and supply motor and sensory information to the head, neck, and upper shoulders.

Answer: F
 The lumbar plexus is a network of nerves that originates in the lower back (L1-L4) and supplies motor and sensory information to the lower body, including the hips, thighs, and legs.

Answer: G
 A dermatome is an area of skin that receives sensory input from a single spinal nerve.

Answer: H
 A myotome is a group of muscles that is innervated by a single spinal nerve.

Answer: I
 Somatic reflexes are reflexes that involve contraction of skeletal muscles and are under conscious control, such as the knee-jerk reflex.

Answer: J
 Autonomic reflexes are reflexes that involve visceral organs and are not under conscious control, such as the pupillary reflex.

Match Each Term with Its Description or Definition