A&P Nervous System

Front

The term central nervous system refers to the: brain and spinal cord

Back

brain and spinal cord

Front

The Schwann cells forms a myelin sheath around the:

Back

axon

Front

Collections of nerve cell bodies inside the CNS are called:

Back

Nuclei

Front

White matter refers to myelinated fibers in the:

Back

CNS

Front

Impulse conduction is fastest in neurons that are:

Back

myelinated

Front

Immediately after an action potential is propagated, which one of the following ions rapidly diffuses out of the cell into the tissue fluid: A) sodium, B) chloride, C) Calcium, D) Potassium

Back

Potassium

Front

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

Back

sodium

Front

The substance that is released at axonal endings to propagate a nervous impulse is called:

Back

a neurotransmitter

Front

Which type of reflex involves skeletal muscles:

Back

somatic

Front

The midbrain, pons, and medulla oblongata are housed in the:

Back

brain stem