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