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Anatomy- Abdominal & Pelvis > ANS > Flashcards

ANS Flashcards

1
Q

Celiac ganglion receives pre-ganglionic axons from the _________________ nerve. This will synapse with the post-ganglionic cell bodies

A

greater splanchnic nerve

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2
Q

Celiac Post-ganglionic axons follow the branches of the ____________. The axons are then called the ____________.

A

Celiac arteries

Celiac plexus

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3
Q

Superior mesenteric ganglion receives pre-ganglionic axons from the ___________________

A

lesser splanchnic nerve

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4
Q

Superior mesenteric post-ganglionic axons follow the branches of the _________________ to reach the ________ organs

A

Superior mesenteric artery

Midgut organs

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5
Q

Aorticorenal ganglia receives pre-ganglionic axons from the _____________ & ______________

A

Lesser & least splanchnic nerves

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6
Q

Aorticorenal post-ganglionic axons innervate what 3 things by following the branches of what?

A

Innervate:

Suprarenal gland
Kidney
Proximal ureter

Follow branches of the renal arteries

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7
Q

Inferior mesenteric ganglion receives pre-ganglionic axons from the ______________

A

Lumbar splanchnic nerves

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8
Q

Inferior mesenteric post-ganglionic axons follow the branches of the ____________________.

Then the axons are called _________.

They innervate:

A

Inferior mesenteric artery

Inferior mesenteric plexus

Innervate hindgut organs: descending colon, sigmoid colon, rectum

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9
Q

Superior hypogastric plexus receives pre-ganglionic sympathetics from _______& _________

A

lumbar & splanchnic nerves

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10
Q

Superior hypogastric post-ganglionic axons follow branches of __________ to reach what 3 things?

A

Iliac artereis

Hindgut, pelvic organs, external genitalia

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11
Q

Some axons descend through hypogastric nerves to reach the inferior _______________

A

Hypogastric plexi

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12
Q

Inferior hypogastric plexi receive pre-ganglions from ____________

A

Sacral splanchnic nerves

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13
Q

Inferior and hypogastric plexi post-ganglionic axons follow ________ to the pelvic organs.

Some will ASCEND to the _________

A

Inferior hypogastric plexi

Superior hypogastric plexi

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14
Q

Vagus nerves carry pre-ganglionic PNS axons from brainstem into either side of the esophagus as the _________ &__________

A

Anterior & posterior vagal tranks

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15
Q

Anterior vagal trunk travels to the _______________
&
Folowing the hepatogastric ligament will travel to the
________&__________

A

Anterior wall of the stomach

Liver & gall bladder

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16
Q

Posterior vagal trunk jumps off the esophagus to join what 4 things?

A

Celiac plexus

Superior mesenteric plexus

Aorticorenal plexus

Gonadal plexus

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17
Q

For the vagus nerve, will it synapse in the ganglia/plexus they are traveling through?

A

NO

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18
Q

Descending & sigmoid colon & rectum receive pre-ganglionic PNS axon from the ____________.

These are called the __________ nerves

A

S2-S4 spinal cord

Pelvic splanchnic nerves

19
Q

The pelvic splanchnic nerves exit the _____________ as part of the anterior sacral rami but leave and join the _____________ and ascend in the ____________ and follow the _______________ and to reach the pelvic viscera.
The pelvic viscera runs directly with the _____________.

A

Anterior sacral foramina

Inferior hypogastric plexus & gonadal plexus

Superior hypogastric plexus

Iliac arteries

Inferior mesenteric plexus

20
Q

ALL PNS post-ganglionic bodes in the body are in __________.

A

Organ walls

21
Q

Post-ganglionic axons are very short and innervate the smooth muscle of the ________ & _____________.

A

gut tube & secretory glands of abdomen

22
Q

Organ post-ganglionic cells are known by several names. What are they?

What are they influenced by?

A

Enteric nervous system

Myenteric Plexus

Submucosal plexus

PNS inputs and hormonees

23
Q

What could cause Hirschsprung’s congenital megacolon?

A

Migration failure of post-ganglionic PNS ganglia into colon

24
Q

What is mostly affected with Hirschsprung’s congenital megacolon?

A

Rectum & sigmoid colon

Makes it hyper-contracted & some regions distended with feces due to de-innervation

25
Q

During sex, what is responsible for engorging the penis/clitoris?

A

PNS S2-4 spinal cord

Relax capillary sphincters in corpus cavernosum

Blood from deep artery travels to penis/clitoris

26
Q

What is responsible for lubrication of UG tract during sex?

A

PNS inputs

27
Q

What is responsible for male ejaculation?

A

SNS from sacral splanchnic nerves

Cause peristaltic coordination of smooth muscle in ductus deferens, seminal vesicles/glands, ejaculatory duct & prostate

28
Q

What prevents ejaculation from going into the bladder?

A

SNS contract internal urethral sphincter

29
Q

What is responsible for female orgasm?

A

SNS causing smooth muscles in vagina to contract

30
Q

Where is the pelvic pain line?

A

Top of bladder, utero-cervical junction, midpoint of sigmoid colon

31
Q

How does pain travel SUPERIOR to the pelvic pain line?

How does NON-pain travel?

A

Follow SNS sacral & lumbar splanchnics to spinal cord

Follow PNS innervation to pelvic splanchnics to spinal cord

32
Q

How does pain and non-pain travel INFERIOR to the pelvic pain line?

A

ALL follow PNS to spinal cord S2-S4

33
Q

Describe the specific path of pain/non-pain from the lower pelvis going to the CNS

A

(Backwards PNS route)

Inferior hypogastric plexus
->
Pelvic splanchnic nerves (S2-4)
->
Anterior ramus of S2-4
->
Spinal nerve
->
Posterior root (cell body in posterior root ganglion)
->
Posterior horn (of S2-4 spinal cord)

34
Q

Once visceral axons reach spinal cord, they synapse with ____________ and ascend in the _______________.

What is the exception?

A

2nd Order Neurons

Anterolateral system

Exception: SOME collateral axons will synapse on nearby 2nd order somatic afferent cells

35
Q

Referred pain from gallbladder, liver and stomach is innervated by what?

A

SNS T5-9

36
Q

Referred pain from pancreas is innervated by what?

A

SNS T5-11

37
Q

Referred pain from small & large intestine are innervated by what?

A

Small = T9-11 SNS
Large= T8-L2 SNS

38
Q

Adrenal gland receives pre-ganglionic SNS axons from _______________

A

Thoracic splanchnic nerves

39
Q

T/F: Adrenal medulla acts as post-synaptic sympathetic cell

A

True!

It acts as the prevertebral ganglion because the post-ganglionic bodies do not have axons. They simply dump epi/norepi into suprarenal vein

40
Q

What are the post-ganglionic bodies in the adrenal medulla called?

A

Chromaffin cells

41
Q

When the bladder detects stretch, it increases ______ inputs to detrusor muscle that stimulates bladder ________.

the same PNS input will cause ________ to internal urethral sphincter

A

PNS

contraction

relaxation

42
Q

SNS stimulates internal urethral sphincter by doing what?

A

Contraction

43
Q

Sphincter urethrae muscle is innervated by branches of ______ nerve is therefore under ______ control

A

pudendal

somatic

Anatomy- Abdominal & Pelvis (7 decks)

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