ANS

Question 1

Is the somatic NS motor or somatic?

Answer 1

Both

Question 2

What part of the brain is responsible for most of the control of the ANS?

Answer 2

Hypothalamus

Question 3

Where is the reflex center for the ANS?

Answer 3

Medulla oblongata

Question 4

What are the reflexes in the medulla oblongata?

Answer 4

Coughing, vomiting, breathing and HR

Question 5

Where is the sympathetic NS?

Answer 5

T1-L2

Question 6

What nerves contribute to the p/s NS?

Answer 6

CN III, VII, IX, X and S2-4

Question 7

What effect does the p/s have on sweat glands and peripheral blood vessels?

Answer 7

None

Question 8

From where does the sympathetic chain extend?

Answer 8

Cervical to coccygeal levels

Question 9

What are the three locations in the body that correspond to the three different pathways for sympathetic nerves?

Answer 9

Periphery, viscera superior to the diaphragm, viscera inferior to the diaphragm

Question 10

Sympathetic path to the periphery

Answer 10

Enter chain, synapse, leave via same level ramus comunicante to reenter the spinal nerve

Question 11

Sympathetic path to viscera above the diaphragm

Answer 11

Enter chain, go up or down, synapse in ganglion, leave the chain as cardiac, pulmonary or esophageal branches

Question 12

Sympathetic path to viscera below the diaphragm

Answer 12

Enter chain, exit chain as splanchnic nerves, synapse at the collateral ganglia on the aorta near the celiac trunk and superior and inferior mesenteric arteries.

Question 13

Why does the phenomenon of referred pain occur?

Answer 13

visceral and somatic sensory nerves enter the spinal cord at the same level, so visceral pain may radiate along somatic pathways