anatomy cards_nerves 3

Question 1

⦛What does the Parasympathetics control?

Answer 1

Peristalsis, relaxation of sphincters of gastrointestinal and urinary tracts, stimulation of glandular activities, urination, erection and defecation.

Question 2

What does the Sympathetics control?

Answer 2

Control vascular tone, contraction of sphincters of gastrointestinal and urinary tracts, smooth musculature of ducts of male reproductive tract and famel reproductive organs.

Question 3

What are the 3 components of the Aortic Plexus?

Answer 3

Sympathetic Fibers, Parasympathetic fibers, Autonomic ganglia and visceral afferents.

Question 4

What is the celiac plexus?

Answer 4

Celiac ganglia, superior mesenteric ganglion and aorticorenal/renal ganglia containing post ganglion sympathetic neurons.

Question 5

What synapses in the celiac plexus?

Answer 5

Thoracic splanchnic nerves.

Question 6

where does the parasympathetic fibers of the celiac plexus come from?

Answer 6

Vagues nerve.

Question 7

What synapses in the multiple small ganglia of the inferior mesenteric plexus?

Answer 7

Lumbar splanchnic nerves.

Question 8

What level is the Visceral afferents of the Inferior mesenteric plexus originating from?

Answer 8

L1-L2

Question 9

Where do the parasympathetics of the inferior mesenteric plexus originating from?

Answer 9

Pelvic splanchnic nerves.

Question 10

Where is the superior hypogastric plexus?

Answer 10

bifurcation of the aorta.

Question 11

What is in the superior hypogastric plexus?

Answer 11

small sympathetic ganglia from lumbar splanchnics, paraympathetic fibers and visceral afferents from pelvic organs.

Question 12

What is in the inferior hypogastric plexi?

Answer 12

fibers from or to superior hypogastric plexus, preganglion parasympathetic fibers from pelvic splanchnics distributed to pelvic viscera with internal iliac artery.

Question 13

What is in the thoracic and lumbar splanchnic nerves?

Answer 13

preganglionic sympathetic and visceral pain afferents.

Question 14

Where does the greater splanchnic nerve originate from?

Answer 14

T5-T9

Question 15

Where dooes the greater splanchnic nerve synapse?

Answer 15

Pirmarily celiac ganglia, some fibers go directly to adrenal medulla to synapse to realse catecholamines.

Question 16

Where does the lesser splanchnic nerve originate?

Answer 16

T10-T11

Question 17

Where does the lesser splanchnic nerve synapse?

Answer 17

Superior mesenteric ganglia.

Question 18

Where does the least splanchnic nerve originate?

Answer 18

T12

Question 19

Where does the least splanchnic nerve synpase?

Answer 19

aorticorenal ganglia.

Question 20

Where does the lumbar splanchnics originate?

Answer 20

L1-L2

Question 21

Where does the lumbar splanchnic nerve synapse?

Answer 21

inferior mesenteric and hypogastric ganglia.

Question 22

How distally does the vagus nerve innervate?

Answer 22

splanic flexure.

Question 23

Where does the Vagus nerve synapse?

Answer 23

Microscopic myenteric ganglia in the wall of the viscera.

Question 24

How does the vagus nerve trave into the abdomen?

Answer 24

As anterior and posterior gastric nerves traveling with the esophaguse.

Question 25

What does the anterior gastric nerve innervate?

Answer 25

Anterior stomach and liver distributed with left gastric and common hepatic branches of the celiac trunk.

Question 26

What does the Posterior gastric nerve innervate?

Answer 26

spleen, pancreas viea splenic artery. Primary course with superior mesenteric artery.

Question 27

What also travels with the gastric nerves?

Answer 27

Visceral afferent fibers.

Question 28

Where does Pelvic Splanchnic nerve originate from?

Answer 28

Intermediolateral cell column from S2-S4.

Question 29

What supplies the parietal peritoneum?

Answer 29

ventral rami vis intercostal or lumbar nerves causing sharp and localized pain.

Question 30

What nerves allows for the feeling of needing to pee?

Answer 30

visceral afferent fibers traveling with the pelvic splanchnics as they respond to the pressure.

Question 31

How is voiding accomplished?

Answer 31

Contraction of smooth muscle of bladder initiated by pelvic splanchnic nerves. Pubococcygeus and pelvic diaphragm relax place the bladder in direct alignment. Sphincters relaxes allowing urine to flow.

Question 32

What does the spincter of the urethra work with?

Answer 32

Pubococcygeus.

Question 33

How is elimination accomplished?

Answer 33

Increase peristalsis and simultaneous relaxtion of the puborectalis muscle and internal and external anal sphincter.

Question 34

What does the puborectalis doe?

Answer 34

pull the rectum anterioly to take the anal canal out of alignment with the rectum.

Question 35

What causes and erection?

Answer 35

Parasympathetic innervation via the internal pudendal artery causing vasodilation of the spongy erectile tissue and secretion of bulbourethral and periurethral glands.

Question 36

What happens during emissions?

Answer 36

Sympathetic inber stimulates smooth muscles of ducts of epididymis, vas deferns, prostate and seminal vesicles which is released into the prostatic urethra.

Question 37

What happens during ejaculation?

Answer 37

semen enters penile urethra and expelled by rhythmic contraction of bulbospongiosus and ischiovagernosus muscles.

Question 38

How is reflux of ejaculate prevented?

Answer 38

Contraction of internal urethral sphincter.