Exam 20: Central Nervous System

The brain has _____ major divisions.

Based on the system of naming tracts in the spinal cord, the corticospinal tract would be a descending tract.

What structure drains cerebrospinal fluid into the third ventricle?

The gray commissure joins the spinal cord to the brain.

The white matter of the cerebellum is called the:

A physician can use lumbar puncture to withdraw cerebrospinal fluid from the subarachnoid space in the lumbar region of the spinal cord.

Each white column in the spinal cord consists of large numbers of cell bodies divided into smaller bundles called tracts.

The hypothalamus is able to influence the functioning of both the sympathetic and parasympathetic divisions of the autonomic nervous system.

After birth, the brain grows only in size, not in number of neurons.

The layer of the meninges that adheres to the outer surface of the brain is the:

Both the pons and medulla oblongata have centers that help regulate respiration.

The tracts that make up the middle cerebellar peduncle come from the pons.

All of the functions of the cerebellum have to do with control of smooth muscle or glands.

There are _____ ventricles in the brain.

The dorsal root ganglion consists of cell bodies of unipolar sensory neurons.

The spinal cord extends from the foramen magnum to the fifth lumbar vertebra.

Match each landmark of the brain with its description or location. -General term for a shallow groove in the cortex

If a person received a lumbar puncture that removed 15 mL of cerebrospinal fluid from the spinal cord, that amount would be about what percent of the cerebrospinal fluid?

The main divisions of the central nervous system are the:

Consciousness may be defined as a state of awareness of one's self, one's environment, and other humans.