Autonomic Nervous System

Question 1

Adrenergic, noradrenergic

Answer 1

A nerve ending that releases norepinephrine as a primary transmitter, also, a synapse in which norepinephrine is the primary transmitter

Question 2

Adrenoceptor, adrenergic receptor

Answer 2

A receptor that binds, and is activated by, one of the catecholamine transmitters or hormones (norepinephrine, epinephrine, dopamine) and related drugs

Question 3

Baroreceptor reflex

Answer 3

The homeostatic mechanism that maintains a constant mean arterial blood pressure

Question 4

Cholinergic

Answer 4

A nerve ending that releases acetylcholine, also, a synapse in which the primary transmitter is acetylcholine

Question 5

Cholinoceptor, cholinergic receptor

Answer 5

A receptor that binds, and is activated by, acetylcholine and related drugs

Question 6

Dopaminergic

Answer 6

A nerve ending that releases dopamine as the primary transmitter; also, a synapse in which dopamine is the primary transmitter

Question 7

Nonadrenergic, noncholinergic (NANC) system

Answer 7

Nerve fibers associated with autonomic nerves that release any transmitter other than norepinephrine or acetylcholine

Question 8

Parasympathetic

Answer 8

The part of the autonomic nervous system that originates in the cranial nerves and the sacral part of the spinal cord

Question 9

Sympathetic

Answer 9

The part of the autonomic nervous system that originates in the thoracic and lumbar parts of the spinal cord

Question 10

Postsynaptic receptor

Answer 10

A receptor located on the distal side of a synapse, for example, on a postganglionic neuron or an autonomic effector cell

Question 11

Presynaptic receptor

Answer 11

A receptor located on the nerve ending from which the transmitter is released into the synapse; modulates the release of transmitter