Nervous System and Sensory Receptors

Front

Axons in the brain and spinal cord that influence movement but do not make contact with skeletal muscle are called:

Back

upper motor neurons

Front

The decussation of the pyramids (pyramidal decussation) is part of the:

Back

motor system

Front

Axons of alpha motor neurons (α motor neurons) end in a skeletal neuromuscular junction. Alpha motor neurons are an example of:

Back

lower motor neurons

Front

The "map" of the body surface in precentral gyrus is called a:

Back

homunculus

Front

Motor areas of cortex include:

Back

Brodmann 6 and 8 (frontal cortex)

Front

In the parasympathetic nervous system, all preganglionic fibers release the neurotransmitter:

Back

acetylcholine

Front

In the sympathetic nervous system, all postganglionic fibers release the neurotransmitter:

Back

norepinephrine

Front

Preganglionic sympathetic cell bodies are absent from spinal cord levels:

Back

C1-C8

Front

In the sympathetic nervous system, preganglionic cell bodies are found primarily in the:

Back

thoracic and upper lumbar regions of the spinal cord.

Front

In the parasympathetic nervous system, all postganglionic fibers release the neurotransmitter:

Back

acetylcholine