Exam 29: The Nervous System

When a neuron is at rest or without stimulation, the outside of its membrane is positively charged and the inside is negatively charged. As long as the neuron is at rest, it remains in this ________ state.

Lying just beneath the diencephalon, the ________ (shown at letter E) controls both visual and auditory reflexes.

The ________ of the cerebrum, shown at letter J, contains somatosensory areas that interpret sensations felt on or within the body.

The cell membrane of the ________ cell contains large amounts of myelin, which insulates the axons and allows them to send nerve impulses quickly.

Which lobe of the brain interprets visual stimuli?

The ________ root of spinal nerves contains axons of sensory neurons only.

Which of the following describes the white matter of the spinal cord?

Anything that inflames the CNS will cause ____.

The ____ nerves act in the muscles that move the eyeball.

Which of the following are the grooves on the surface of the cerebrum?

The ________, shown at letter F, regulates respiration and contains nerve tracts to connect the cerebrum to the cerebellum.

Mrs. Tanneman has brought her husband to your office because she says "he just doesn't seem to understand anything anymore." She says he often just sits on the couch for hours staring into space and does not respond when she speaks to him. When he does respond to her questions, sometimes his answers don't have anything to do with the question she asked. Which of the following neurological tests would provide the most helpful information about Mr. Tanneman's health?

The ________ cells are cells that do not transmit impulses, but function as support cells for neurons and never lose their ability to divide.

The membranes of Schwann cells contain large amounts of ________, which is a fatty substance that insulates the axons and allows them to send nerve impulses quickly.

Which of the following occurs when parts of the brain receive a burst of electrical signals that disrupt normal brain activity?

Which of the following can cause a motor response without getting information from the brain?

The "bumps" of brain matter between the sulci are ________, or convolutions.

The ________ is located between the cerebral hemispheres superior to the brainstem and includes the thalamus and hypothalamus.

The ________ branch of the autonomic nervous system prepares the body for resting and digesting by keeping the heart and breathing rates low.

Collections of neuron cell bodies outside the CNS are called ________.