Exam 13: The Spinal Cord and Spinal Nerves

During childbirth,anesthesia is administered into the epidural space of the spinal column between which of the following vertebrae??1.L4 and L5?2.T3 and T4?3.S4 and S5?4.C3 and C4

The nerve labeled B in the diagram arises from which plexus?

Where is the arachnoid mater?

Which of the following nerves is labeled A in the diagram?

Where is the subarachnoid space?

Which portion of the spinal cord contains the cell bodies of somatic motor neurons and motor nuclei?

This type of descending motor pathway originates in the brainstem and governs automatic movements that help regulate muscle tone,posture and balance.

The nerve labeled F in the diagram arises from which plexus?

Intercostal nerves

A man presents with median nerve palsy in his left hand.What is the most likely site of injury?

Which of the following structures contains only sensory axons that conduct nerve impulses from sensory receptors in the skin,muscles and internal organs to the CNS?

Which of the labeled structures contains cerebral spinal fluid?

Which of the following structures is labeled D in the diagram?

Which of the following parts of a reflex arc would have a cell body in the posterior root ganglion?

What types of axons are wrapped in a protective endoneurium??1.Myelinated?2.Unmyelinated?3.Only dendrites are surrounded by endoneurium

Which of the labeled structures carries exclusively motor information away from the spinal cord?

The structure labeled I in the diagram belongs to which group of spinal nerves?

Which of the following parts of a reflex arc receives sensory information and decides how to respond to a change in the body's condition?

Where is the pia mater?

Name and describe the locations of the four major plexuses of spinal nerves.