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Flashcards > anatomy ch 15 pt 2 > Flashcards

anatomy ch 15 pt 2 Flashcards

1
Q

What does spinal nerve pathway contain?

A

Both white and gray rami and on and off trunks

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2
Q

What is intramural nerve?

A

In organ

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3
Q

What is terminal nerve?

A

By organ

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4
Q

What is adrenal medulla pathway?

A

Stay in fight or flight

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5
Q

What are autonomic plexuses?

A

Network of nerves within thoracic and abdominopelvic cavities

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6
Q

What do plexus have?

A

Sympathetic axons from cervical and thoracic trunk and parasympathetic axons from vagus nerve

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7
Q

What does cardiac plexus do?

A

Quicken and slow the heart

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8
Q

What does pulmonary plexus do?

A

Bring in more air and going back to normal

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9
Q

What does esophageal plexus do?

A

Decreases motility and coordinates opening of cardiac sphincter with swallowing

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10
Q

What does abdominal aortic plexus do?

A

Innervates all abdominal and some pelvic organs

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11
Q

What does hypogastric plexus do?

A

Innervates viscera within pelvic region

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12
Q

Cells that release ACh

A

Cholinergic neurons

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13
Q

Cells that release NE

A

Adrenergic neurons

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14
Q

What is nicotinic receptors?

A

Directly open a channel and bring in sodium

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15
Q

What is muscarinic receptors?

A

Does not directly open a channel and needs a second messenger

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16
Q

What is catecholamine?

A

Special chemical messenger, biogenic amines (modified amino acids), ligands

17
Q

Where is nicotinic receptors located?

A

Found on all ganglionic neurons and adrenal medulla cells

18
Q

Where is muscarinic receptors located?

A

Parasympathetic division

19
Q

B1 receptor location

A

Located in heart and in kidney

20
Q

B1 receptor effect of binding

A

Increase heart rate and force and stimulates renin secretion

21
Q

B2 receptor location

A

Located in smooth muscle of vessels to heart, liver, skeletal muscles, and lungs

22
Q

B2 receptor effect of binding

A

Cause vessel dilation, bronchodilation, and relaxation

23
Q

B3 receptor location

A

Located in adipose, urinary bladder, and smooth muscle

24
Q

B3 receptor effect of binding

A

Triglyceride breakdown for fuel and relaxion

25
Q

A1 receptor location

A

Located in most blood vessels, arrector pili muscles, uterus

26
Q

A1 receptor effect of binding

A

Vasoconstriction, goose bumps, contraction, closing, pupil dilation

27
Q

A2 receptor effect of binding

A

Inhibit insulin secretion and constriction

28
Q

A2 receptor location

A

Located throughout CNS, in pancreas, G1 tract sphincters

29
Q

Reflex arc system

A

Receptor -> sensory relay to CNS -> CNS integration center -> motor neuron -> effector

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