ANS REVIEW

Question 1

Targets of ANS

Answer 1

smooth muscle, cardiac muscle, skeletal muscle, nerve terminals, exocrine and endocrine glands, and adipose tissue

Question 2

ANS regulates which functions without conscious control?

Answer 2

respiration
circulation
digestion
body temperature
metabolism
sweating
secretions of certain endocrine glands

Question 3

Parasympathetic branch

Answer 3

decrease heart rate
causes meiosis
rest and digest
ganglia located on/near target organ

Question 4

Sympathetic Branch

Answer 4

increases heart rate
causes mydriasis
fight or flight
ganglia located in close proximity to spinal cord

Question 5

neuroeffector junction

Answer 5

synapse between a postganglionic autonomic neuron and its target cell

Question 6

Varicosity

Answer 6

swelling on distal ends of autonomic axons filled with neurotransmitters

Question 7

The postsynaptic receptor on a ganglion is the?

Answer 7

nicotine receptor

Question 8

Somatic motor pathways control what and are always?

Answer 8

skeletal muscles
excitatory

Question 9

What does the neuromuscular junction in somatic motor pathways contain?

Answer 9

ACh
AChE
nicotinic receptors

Question 10

Myasthenia Gravis

Answer 10

deficiency in ACh receptors resulting in weak muscle function

Question 11

How is ACh made?

Answer 11

Choline is acetylated with acetylated coenzyme A by choline acetyltransferase

Question 12

What packages ACh into synaptic vesicles?

Answer 12

vesicular ACh transporter

Question 13

ACh release pathway

Answer 13

1. Action potential causing an influx of Calcium
2. This then causes the fusion of storage vesicle with presynaptic memebrane
3. ACh release