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Anatomy Exam 4 > Gut Development: Peritoneum and Peritoneal Cavity > Flashcards

Gut Development: Peritoneum and Peritoneal Cavity Flashcards

1
Q

What is the alimentary canal?

A

the tube that goes from the mouth to the anus that food passes through

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2
Q

What are the organs of the alimentary canal?

A

esophagus, stomach, duodenum, jejunum, ileum, appendix, cecum, ascending colon, transverse colon, descending colon, sigmoid colon, rectum

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3
Q

What are the accessory digestive organs?

A

spleen, liver, galbladder, pancreas

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4
Q

Where are all accessory digestive organs derived from?

A

foregut

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5
Q

What are the three segments of the gut tube?

A

foregut, midgut, hindgut

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6
Q

What alimentary organs are derived from the foregut?

A

esophagus, stomach, and first 1/2 of duodenum

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7
Q

What alimentary organs are derived from the midgut?

A

second 1/2 of duodenum, jejunum, ileum, cecum, appendix, ascending colon, and 2/3 of transverse colon

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8
Q

What alimentary organs are derived from the hindgut?

A

1/3 of transverse colon, descending colon, sigmoid colon, and rectum

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9
Q

Where is the foregut/midgut transition?

A

half way through the duodenum

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10
Q

Where is the midgut/hindgut transition?

A

2/3 way through transverse colon

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11
Q

What branch of aorta supplies the foregut derivatives?

A

celiac artery

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12
Q

What branch of aorta supplies the midgut derivatives?

A

superior mesenteric artery

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13
Q

What branch of the aorta supplies the hindgut derivatives?

A

inferior mesenteric artery

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14
Q

Where are the preganglionic cell bodies for the foregut located?

A

T5-T9

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15
Q

Where are the preganglionic cell bodies for midgut located?

A

T9-T12

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16
Q

Where are the preganglionic cell bodies for hindgut located?

A

T12-L2

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17
Q

What nerve supplies sympathetic innervation of the foregut?

A

greater splanchnic nerve

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18
Q

What nerve supplies sympathetic innervation of the midgut?

A

lesser/least splanchnic nerves

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19
Q

What nerve supplies sympathetic innervation of the hindgut?

A

least/lumbar splanchnic nerves

20
Q

What prevertebral ganglion supplies the foregut? (sympathetic)

A

celiac

21
Q

What prevertebral ganglion supplies the midgut? (sympathetic)

A

superior mesenteric/intermesenteric

22
Q

What prevertebral ganglion supplies the hingut? (sympathetic)

A

inferior mesenteric/intermesenteric

23
Q

What artery do postganglionic axons follow in foregut?

A

celiac artery

24
Q

What artery do postganglionic axons follow in midgut?

A

superior mesenteric artery

25
Q

What nerve do postganglionic axons follow in hindgut?

A

inferior mesenteric artery

26
Q

Where are preganglionic cell bodies for the foregut?

A

brainstem

27
Q

Where are preganglionic cell bodies for the midgut?

A

brainstem

28
Q

Where are preganglionic cell bodies for the hindgut?

A

S2-S4

29
Q

What nerve supplies the parasympathetic innervation for the foregut?

A

vagus nerve

30
Q

What nerve supplies the parasympathetic innervation for the midgut?

A

vagus nerve

31
Q

What nerve supplies the parasympathetic innervation for the hindgut?

A

pelvic splanchnic nerve

32
Q

Where are the parasympathetic ganglia of the foregut?

A

organ walls

33
Q

What nerve supplies the parasympathetic innervation for the midgut?

A

organ walls

34
Q

What nerve supplies the parasympathetic innervation for the hindgut?

A

organ walls

35
Q

What is the peritoneum?

A

thin layer of tissue that secretes a little fluid to decrease the surface area

36
Q

What supply the somatic sensory innervation of the body wall?

A

intercostal nerves

37
Q

Is the peritoneum pain sensitive?

A

the parietal peritoneum is

38
Q

What layer of the peritoneum is on the body wall?

A

parietal peritoneum

39
Q

What layer of the peritoneum is on the organs themselves?

A

visceral peritoneum

40
Q

What is the mesentary?

A

the bridge between visceral and parietal peritoneum

41
Q

Where does the gut tube begin developing?

A

in the posterior abdominal wall

42
Q

Is the visceral peritoneum pain sensitive?

A

no it is pain insensitive

43
Q

What are the two functions of the mesentary ?

A
  1. suspend organs
  2. conduit for nerves, blood vessels, and lymphatics
44
Q

What does it mean if an organ is secondarily retroperitoneal?

A

start as mesenteric organs and then fall back onto the body wall and one of the layers of peritoneal disappears

45
Q

What do all of the gut organs start as?

A

mesenteric

46
Q

Is gut organs fall back and become retroperitoneal, what is that called?

A

secondarily retroperitoneal

47
Q

What are primary retroperitoneal organs?

A

ones that are not in the digestive tract
(kidneys, aorta, other things)

Anatomy Exam 4 (10 decks)

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