Exam 12: The Spinal Cord, spinal Nerves, and Spinal Reflexes

Figure 12-2 -Identify the structure labeled "2."

The ________ innervate(s)the ventrolateral body surface,structures in the body wall,and the limbs.

In an adult,the conus medullaris is found at about

The anterior horns of the spinal cord contain mainly

Spinal interneurons inhibit antagonist motor neurons in a process called

Which of the following is not true of the spinal cord?

During a withdrawal reflex of the foot,what happens to the limb on the side opposite the stimulus? What is this response called?

Each of the following nerves originates in the lumbar plexus except the ________ nerve.

The ________ of each spinal nerve innervates the skin and muscles of the back.

Name the pair of spinal nerves that emerges between vertebrae C7 and T1.

A typical spinal cord has how many pairs of spinal nerves,and where does the spinal cord end?

In which plexus does the ulnar nerve arise?

Somatic motor neurons in the spinal cord control all of the following muscles except those that

The layer of the meninges in direct contact with the spinal cord is the

Describe the lumbar plexus and sacral plexus.

The ________ plexus supplies innervation to the diaphragm.

Recognized neuronal circuit patterns include all of the following except

The epidural space contains

The anterior root of a spinal nerve contains

Name the major nerves associated with the brachial plexus.