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Anatomy Exam IV > Abdominal Cavity I > Flashcards

Abdominal Cavity I Flashcards

1
Q

Ectoderm

A

make integument and nervous system, lining of anus and mouth

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2
Q

Splanchnic mesoderm

A

make muscle, bone, connective tissue, outer layers of gut and gut-derived abdominal organs

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3
Q

endoderm

A

makes lining of gut and gut-derived abdominal organs

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4
Q

yolk sac

A

protects embryo from EtOH until it’s implanted
gives nourishment until implantation is complete
starts to form endoderm
blood develops here until liver is functional

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5
Q

What forms first: anus or mouth?

A

anus

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6
Q

Foregut

A

consists of mouth and anus

gives rise to pharyngeal pouches

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7
Q

blood vessel of the foregut

A

celiac trunk

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8
Q

midgut

A

extend from distal 2/3 of duodenum to proximal 2/3 of colon

gives rise to yolk stalk

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9
Q

blood vessel of the midgut

A

superior mesenteric a (SMA)

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10
Q

hindgut

A

extends from distal 1/3 of colon to anus

gives rise to allantois

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11
Q

blood vessel of the hindgut

A

inferior mesenteric a (IMA)

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12
Q

re-canalization allows what?

A

structures to pass through gut tube

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13
Q

stenosis

A

narrowing of lumen

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14
Q

arthesia

A

complete blockage

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15
Q

mesentery

A

2 thin layers of splanchnic mesoderm that fuse together and form mucous/fibrous sheets around organs

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16
Q

What happens to the dorsal mesentery?

A

disinigrates

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17
Q

What happens to the ventral mesentery?

A

forms remnants

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18
Q

Remnants of the ventral mesentery

A

falicifrom ligament
coronary ligament
lesser omentom

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19
Q

Falciform ligament

A

goes from liver to ventral body wall

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20
Q

Coronary ligament

A

goes from liver to diaphragm

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21
Q

Lesser omentom

A

goes from liver to stomach and duodenum, but doesn’t attach to a body wall

22
Q

Secondarily Retroperitoneal

A

early in development is intraperitoneal but during rotation the organ gets pressed against the body wall and one layer of peritoneum disintegrates

23
Q

Primary retroperitoneal

A

always behind a mesentary during development

24
Q

Which organs are secondarily retroperitoneal

A

adreal glands
pancreus
2nd-4th parts of duodeum
ascending/descending colon

25
Q

Which organs are primarily retroperitoneal

A

esophagus
rectum
anus
kidney

26
Q

Mnemonic for retropertoneal organs

A

SAD PUCKER

suprarenal glands, aorta/vena cava, duodeum, pancrease ureter, colon, kidney, esophagus, rectum

27
Q

Tracheosophageal folds

A

fuse to creat the esophagus and trachea

28
Q

Fistula

A

joining of two structures that shouldn’t be joined

29
Q

Polyhydramnios

A

excess amniotic fluid

30
Q

Where does amniotic fluid come from

A

allantois

31
Q

What can happen when the fetus swallows amniotic fluid?

A

esophageal atresia

32
Q

_____ border of the stomach grows faster than the ____ border

A

dorsal

lesser

33
Q

Dorsal border of stomach creates the ____ curvature.

Ventral border of stomach creates the ____ curvature

A

greater

lesser

34
Q

What provides parasymphatetic innervation to stomach

A

vagus

35
Q

Pancreatic development

A

starts as 2 buds (dorsal and ventral) that come together to form pancreas

36
Q

What happens if 2 ventral buds of pancreas develop?

A

stenosis of duodnum

37
Q

Spleen development

A

NOT an endodermal derative

forms from splanchinic mesoderm and dorsal mesentery

38
Q

What are some problems that can happen during twistin?

A 
untwisted gut
volvulus
reversed rotation
sub-hepatic cecum and appendix
internal hernia
midgut volvulus
39
Q

volvulus

A

torsion or twisting of gut in a different directions

can cause blockage in small intestine

40
Q

reversed rotation

A

SMA wraps around transverse colon causing blockage

41
Q

sub-hepatic cecum and appendix

A

no ascending colon

42
Q

internal hernia

A

omentum gets wrapped around small intestine, causes issues with digestion

43
Q

midgut volulus

A

colon wraps around duodeum

44
Q

Urorectal septum

A

splits clocacal membrane into urogenital membrane and anal membrane

45
Q

Pectinate line

A

where ectoderm and endoderm meet

46
Q

What receptors are above the pectinate line

A

pressure/stretch

NO PAIN

47
Q

What receptors are below the pectinate line

A

pain

48
Q

Persistant anal membrane

A

no opening to deficate

49
Q

anal-perineal fistula

A

the feces goes out a different hole

50
Q

rectouretral fistula

A

feces goes out of penis

51
Q

rectovaginal fistula

A

feces foes out vagina

Anatomy Exam IV (9 decks)

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