ANS

Question 1

Adrenergic, noradrenergic

Answer 1

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

Question 2

Adrenoreceoptor; adrenergic receoptor

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

Answer 3

The homeostatic mechanism that maintains a constant mean arterial blood pressure; the
sensory limb originates in the baroreceptors of the carotid sinus and aortic arch; efferent pathways run in parasympathetic and sympathetic nerves to the heart and blood vessels

Question 4

Cholinergic

Answer 4

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

Question 5

Cholinergic receptor

Answer 5

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

Question 6

Dopaminergic

Answer 6

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

Question 7

Nonadrenergic noncholinergic system NANC

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 traditionally, the sacral part of the spinal cord); the craniosacral autonomic system.

Question 9

Postsynaptic Receptor

Answer 9

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

Question 10

Sympathetic Nervous System

Answer 10

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

Question 11

What is the primary transmitter of the sympathetic nervous system?

Answer 11

Norepinephrine

Question 12

What is the difference between ach and dopamine & norepinehrine metabolism at the distal end?

Answer 12

Ach is recycled but norepinephrine and dopamine are diffused and reuptake is important.

Question 13

Muscarinic receptors

Answer 13

respond to muscarine
respond to acetylcholine
located on autonomic effector cells on heart, vascular endothelium

Question 14

Nicotinic receptors

Answer 14

Located on Na+ -K+ ion channels
Respond to acetycholine and nicotine by opening channel

Question 15

Adrenoreceptors or adrenergic receptors

Answer 15

Several subtypes Alpha, Beta, Dopamine

Question 16

Alpha 1

Answer 16

Found on effector tissues, smooth muscle, glands: causes constriction and secretion

Question 17

Alpha 2

Answer 17

Found on nerve endings, some smooth muscle. Decrease transmitter release, causes contraction

Question 18

Beta 1

Answer 18

Found on heart muscle; increases heart rate, force and promotes renin release

Question 19

Beta 2

Answer 19

Found on smooth muscle, liver, heart: Relaxes smooth muscle, increases glycogenisis, increase heart rate, force

Question 20

Dopamine (D1) receptor

Answer 20

Relax renal vascular smooth muscle

Question 21

A primary transmitter at most sympathetic postganglionic nerve endings

Answer 21

Norepinephrine