Chapter 14 Question Set

Stepping on a piece of glass with the left foot will result in extension of the right leg to help maintain balance. This is an example of a(n) _____________ reflex.

Touching a hot object with the right hand will result in withdrawl of the right hand from the object. This is an example of a(n) ____________ reflex.

There are ___ pairs of spinal nerves that exit the vertebral column.

A spinal nerve splits into ___ branches.

The __________ enlargement of the spinal cord is the location where nerves that supply the upper limbs enter and leave the spinal cord, and the __________ enlargement is the location where nerves that supply the lower limbs enter and leave the spinal cord.

Which of the following statements is correct about spinal nerves?

Which portion of a reflex arc is most likely to be located entirely within the central nervous system?

The spinal cord extends from the level of the _______________ to the level of the ____________.

The area of the skin that is supplied with sensory innervation by a pair of spinal nerves is called a ___________.

The smaller structural units that contain bundles of axons within each white matter funiculus are called

The spinal cord is partitioned into an inner __________ matter region and an outer ___________ matter region.

Intercostal nerves are the anterior rami of which spinal nerves?

Which nerve of the sacral plexus is the largest and longest nerve in the body?

Rhythmic oscillations between flexion and extension when the muscle reflex is tested are called ____________.

The central nervous system forms primarily from which of the following?

Why does the vertebral canal extend beyond the spinal cord, encompassing the cauda equina?

Which meninx is the deepest in its location?

The space containing cerebrospinal fluid is the _________ space.

A command from the brain to signal muscle contraction would pass through a(n)

Which neuron in a sensory pathway is part of the sensory receptor?

Motor signals to maintain posture and balance pass through a(n) ____________ pathway.

Direct motor pathways are involved in

Severing the posterior ramus of a spinal nerve may result in

The cords of the brachial plexus are named by their location with respect to the

After an injury, a patient has difficulty contracting his deltoid muscle. This indicates possible damage to the ___________ nerve.

Damage to the ____________ nerve may result in difficulty extending the knee as in kicking a ball.

Tapping the triceps brachii muscle tendon will result in reflexive elbow extension. This is an example of a ____________ reflex.

How many neurons are in the somesthetic pathway from the skin to the postcentral gyrus?

The spinal cord and spinal nerves are responsible for _______, which are our quickest reactions to a stimulus.

The cell bodies of sensory neurons are found

Motor neurons contain their cell bodies in the ______ and axons in the ______.

The eighth spinal nerve exits the intervertebral foramen between the ______ vertebrae.

Each thoracic spinal nerve emerges from intervertebral foramen that is _____ to the vertebra of the same number.

Nerve plexuses are organized such that axons from each ________ ramus extend to body structures through several different branches.

Most of the thoracic spinal nerves, as well as nerves ________, do not form plexuses.

1. Oligodendrocytes produce myelin within the central nervous system (CNS). The cells that do this in the peripheral nervous system are: 2. The mechanism of injury in the case of Guillain-Barré syndrome is: 3. The central nervous system counterpart to Guillain-Barré syndrome is: 4. We typically see ascending paralysis in the case of Guillain-Barré syndrome because:

1. Some people with Guillain-Barré syndrome never fully recover and are left with life-long neurological because: 2. The role of physical therapy in GBS patients with permanent neurological deficits is to: