autonomic nervous system

Question 1

long, unmyelinated axons leaving the ANS ganglia

Answer 1

Postganglionic

Question 2

postganglionic axons of the autonomic nervous system

Answer 2

unmyelinated

Question 3

autonomic plexuses

Answer 3

web of axons. Collection of sympathetic postganglionic axons, parasympathetic preganglion axons and visceral sensory axons

Question 4

in the autonomic plexus

Answer 4

sympathetic and parasympathetic axons travel together on blood vessels to reach their destination (safe way to get to target)

Question 5

parasympathetic division

Answer 5

Cranial nerves:
1. oculomotor (CN III)
2. Facial (CN VII)
3. Glossopharyngeal (CN IX)
4. Vagus (CN X)

Question 6

Vagus Nerve

Answer 6

The vagus nerve has the most extensive
distribution in the body, innervating structures in the head but also the neck, thorax, and abdomen
- Cranial nerve 10

Question 7

vagus nerve-> cardiac plexus->

Answer 7

heart

Question 8

vagus nerve->pulmonary plexus->

Answer 8

bronchi and lungs

Question 9

vagus nerve->esophageal plexus->

Answer 9

lower esophagus

Question 10

vagus nerve->celiac plexus->

Answer 10

foregut organs

Question 11

vagus nerve->Superior Mesenteric plexus->

Answer 11

midgut organs

Question 12

pelvis splanchnic nerve-> hypogastric plexus->inferior mesenteric

Answer 12

hindgut organs

Question 13

pelvis splanchnic nerve->hypogastric plexus->

Answer 13

pelvic organs

Question 14

diaphgram separates

Answer 14

thoracic cavity from abdominal cavity (esophageal from celiac)

Question 15

sympathetic division

Answer 15

thoracolumbar division

Question 16

sympathetic chain

Answer 16

white rami communicantes and gray rami communicantes

Question 17

white rami communicantes

Answer 17

preganglionic sympathetic axons of T1-L2 spinal nerves
myelinated
white
present in every pathway

Question 18

gray rami communicantes

Answer 18

postganglionic sympathetic axons from the sympathetic trunk to the spinal nerve
unmyelinated
from ganglia to spinal nerve

Question 19

sympathetic division: Prevertebral ganglia

Answer 19

collection of cell bodies immediately anterior to the vertebral column on the anterolateral surface of the aorta
clusters around arteries

Question 20

postganglionic sympathetic path T1-T5

Answer 20

(T1-T5)
cardiac plexus->heart
pulmonary plexus->bronchi and lungs
esophageal plexus-> lower esophagus

Question 21

splanchnic nerve pathway

Answer 21

(T5-L2)
greater splanchnic nerve (T5-T9) to c. plexus to forgut organs

lesser splanchnic nerve (T10-T11) to SM plexus to midgut organs

least splanchnic nerve (T12) -> SM plexus (midgut organs) and IM plexus (hindgut organs)

Lumbar splanchnic nerve L1+ L2-> IM plexus-> hindgut organs

sacral splanchnic->hypogastric plexus->pelvic organs (bladder and reproductive organs)

Question 22

spinal nerve pathway

Answer 22

(C6-T3)
to integument structures
-arrector pili muscles
-sweat glands
-blood vessels

Question 23

adrenal medulla pathway

Answer 23

(T8-T12)

Question 24

adrenal cortex

Answer 24

3 layers each producing different hormones

Question 25

adrenal medulla

Answer 25

norepinephrine and epinephrine

Question 26

foregut

Answer 26

lower esophagus, stomach, gallbladder, liver, spleen, duodenum celiac trunk (artery) celiac ganglion celiac plexus

Question 27

midgut

Answer 27

duodenum, jujnum, ileum, cecum, appendix, ascending colon, transverse colon (proximal 2/3) superior mesenteric artery superior mesenteric ganglion superior mesenteric plexus

Question 28

hindgut

Answer 28

transverse colon (distal 1/3), descending colon, sigmod colon, rectum inferior mesenteric artery inferior mesenteric ganglion inferior mesenteric plexus

Question 29

referred pain

Answer 29

occurs when impulses from certain viscera are perceived as originating not from the organ but in a dermatome of the skin