Nervous system (8.7 spinal nerves)

The _________ arise along the spinal cord from the union
of the dorsal roots and ventral roots

TRUE or FALSE
All the spinal nerves contain axons of both sensory and somatic motor neurons and thus are called mixed nerves.
True False

What are the regions of spinal nerves that are categorized of the vertebral column from which they emerge

TRUE or FALSE
The 31 pairs of spinal nerves are therefore C1 through C8, T1 through T12, L1 through L5, S1 through S5, and Co
True False

A ________ is the area of skin supplied with sensory innervation by a pair of spinal nerves.

TRUE or FALSE
Each of the spinal nerves has a specific cutaneous sensory distribution.
True False

What are the three major plexuses

One of the most important branches of the cervical plexus is the _______, which innervates the diaphragm.

cervical plexus originates from

brachial plexus originates from

The _______ innervates two shoulder muscles and the skin over part of the shoulder. The _______innervates all the muscles in the posterior arm and forearm as well as the skin over the posterior surface of the arm, forearm, and hand.

The ________ innervates the anterior muscles of the arm and
the skin over the radial surface of the forearm.

The _______ innervates two anterior forearm muscles and most of the intrinsic hand muscles.

The _________ innervates most of the anterior forearm muscles and some of the intrinsic hand muscles. It also innervates the skin over the radial side of the hand.

The lumbosacral plexus originates from

The _______ innervates the muscles of the medial thigh and the skin over the same region.

The_________ innervates the anterior thigh muscles and the skin over the anterior thigh and medial side of the leg.

The ________ innervates the posterior thigh muscles, the anterior and posterior leg muscles, and most of the intrinsic foot muscles. It also innervates the skin over the sole of the foot.

The __________ innervates the muscles of the lateral thigh and leg and some intrinsic foot muscles. It also innervates the skin over the anterior and lateral leg and the dorsal surface (top) of the foot.

The tibial and common fibular nerves are bound together within a connective tissue sheath and together are called