Exam 20: Central Nervous System

Disruption of cerebrospinal fluid circulation that causes the fluid to accumulate in the epidural space is known as hydrocephalus.

Decussation of sensory neurons usually occurs at the secondary neuron level before reaching the thalamus.

Ascending tracts carry only sensory information, whereas descending pathways carry only motor information.

Projection tracts pass through the corpus callosum from one hemisphere of the cerebrum to the other.

Cerebrospinal fluid is not found in the epidural space.

The epidural space contains a layer of fat and other connective tissue.

Match each disorder with its corresponding definition. -Recurring or chronic seizure episodes involving sudden bursts of abnormal neuron activity

The vomiting reflex is mediated by the:

Explain the functions of the hypothalamus.

The vomiting reflex is mediated by the medulla.

Which of the following structures is not part of the diencephalon?

The conus medullaris is located at about the first lumbar vertebrae.

The shallow grooves of the cerebrum are called sulci.

Impulses from which system play a part in arousing or alerting the cerebrum?

Spinal reflex centers are located in the gray matter of the spinal cord.

The secondary motor area is found in the gyrus just posterior to the primary motor area.

A primary function of the reticular activating system (RAS) is to arouse or alert the cerebral cortex.

The epidural space is found only in the area of the spinal cord.

The hormone released by the hypothalamus, melatonin, helps regulate the biological clock.

Basal ganglia are islands of gray matter deep in the cerebellum.