anatomy nerve test

The midbrain, pons, and medulla oblongata are housed in the ____.

brain stem

The nervous system is structurally subdivided into two systems: ____ nervous system and ____ nervous system.

central and peripheral

Loss of muscle coordination results from damage to the ____.

cerebellum

Control of temperature, endocrine activity, metabolism, and thirst are functions associated with the ____.

hypothalamus

The fissure in the brain that separates the two cerebral hemispheres is called the ____.

longitudinal fissure

The brain and spinal cord are protected and cushioned by three connective tissue membranes that are collectively called ____.

meniges

Impulse conduction is fastest in nerves that are covered in ______.

myelin

Support cells in the central nervous system are collectively called ____.

neuroglia

The gaps between the myelin sheath found at regular intervals in the axons of neurons are called ____.

nodes of ranvier

The ____ division of the autonomic nervous system is often called the "rest-and-digest" division.

parasympathetic

The delicate innermost membrane, or meningeal layer, that clings to the surface of the brain and spinal cord is known as the ____ mater.

pia

An action potential is caused by an influx of these ions into the cell ____.

sodium

Preparing the body for the "fight-or-flight" response during threatening situations is the role of the ____.

sympathetic

The gap between two communicating neurons is termed ____.

synapase

How many pairs of cranial nerves branch from the surface of the brain?

tweleve

The only pair of cranial nerves to extend to the thoracic and abdominal cavities is the ____ nerves.

vagus