Perrault_Abdomen_Embryology Flashcards Preview

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Flashcards in Perrault_Abdomen_Embryology Deck (60):
1

mesocolon:

mesentary sheet that adhears the transverse colon to the posterior wall

2

developmental phases of development:

elongation/recanalization, herniation, rotation/folding, histogenesis, functional maturation

3

the primordial foregut incluides:

primordial pharynx, lower respiratory system, the esophogus, duodunum-proximal part, the liver, bilary apparatus, pancreas

4

the primordial foregut is vascularly supplied by the:

celiac artery

5

the primordial midgut includes:

small intestine, duodenum-distal part, cecum, appendix, ascending colon, 2/3 of the transverse colon

6

the primordial hindgut includes:

left 1/3 of transverse colon, descending colon, sigmoid colon, rectum, superior part of anal canal, epithelium of urinary bladder, most of the urethra

7

the primordial midgut is vascularized by the:

superior messentary

8

the primordial hindgut is vascularized by the:

inferior messentary

9

by the end of the first month, the endoderm will develop a series of _______ budding off of it

diverticulum

10

vitelline duct

In the human embryo, the vitelline duct, also known as the omphalomesenteric duct, is a long narrow tube that joins the yolk sac to the midgut lumen of the developing fetus.[1] It appears at the end of the fourth week, when the yolk sac presents the appearance of a small pear-shaped vesicle (the umbilical vesicle).

11

if the vitelline is left over, it is associated with the _____ and is called _____

illeum, merkle's diverticuli

12

the endoderm that expands out from within the pharyngeal arches,

pharyngeal pouches

13

mesoderm that stayed with endothermal tube as it spread out laterally is called:

splancnic mesoderm

14

mesdoerm that stayed with the body wall while spreading is called:

somatic mesoderm

15

the two layers of cells that are surrounding the gut tube, that is pulled into the center of the cavity of the embryo is called:

splancnic mesoderm

16

the ____ and _______ structures will develop from the ventral wall

foregut, hindgut

17

the _____ does not develop from the ventral wall because of the ______

yolk sac

18

the yolk sac caused no mesentary in the abdominal cavity to be derived from the _______ and so most all of the mesentary of the abdomen is derived from the _____

dorsal wall

19

the thorax is separated from the diaphram by:

septum transversum (ventral wall)

20

the septum transversum grows out of the _____ and is called ______

ventral wall, somaticmesoderm

21

four sections that become the diaphram are:

septum transversum, pleuroperitoneal folds, mesentery of the esophagus, secondary ingrowth from the mesenchyme from the body wall

22

during the ______ phase, the GI forces its way into the thoracic cavity

elongation phase

23

esophogus starts as:

two layer tube

24

the esophogus elogates significantly while developing a muscular outer component from ______

splanchnic mesoderm

25

the esophogus is _____ and and expands to occlude the lumen

endodermal derived epithelium

26

_____ form and recanalize the lumen

vacuoles

27

during the secondary vacualization phase, the esophogus reopens and the _____ tissue becomes more _____,

cuboidal, columnar

28

growth factors are released from____ that signal the distal end of the esophogus to turn into the _____

the inside of the esophogus, circular muscle cells

29

the endodermal tube signals for the ____ to turn into muscle distally, and more connective tissue proximally

splancnic mesoderm

30

the lesser curvature of the stomach was _____ and the greater curvature was _____

anterior posterior

31

the stomach turns (right), there is differential growth, and the dorsal mesentary becomes the ____ and the ventral mesentary becomes the _____

greater omentum, lesser omentum

32

the ____ aspect of the tube grows faster than the______

posterior anterior

33

along with the increased growth of the ____portion of the stomach, there is an increased growth of the ____

posterior, dorsal mesentary

34

the anterior aspect of the peritoneal cavity is ___ layered and is derived from the ____

4, dorsal mesentary

35

heterotropic gastric

cells from differentiating stomach result in acid producing cells in random places (SI, Trans colon, esophogus)

36

at 1 month, the fetus will begin____ without it you have ____

drinking amniotic fluid, duodenal atresia

37

not drinking a amniotic fluid results in :

Polyhydramnios

38

Polyhydramnios is:

a medical condition describing an excess of amniotic fluid in the amniotic sac. It is seen in about 1% of pregnancies. It is typically diagnosed when the amniotic fluid index (AFI) is greater than 24 cm.

39

just ____ to the stomach you have 2 diverticular show up. they are anterior ____ and posterior______

distal, liver bud that develops into a biliary system, dorsal pancreas

40

the ___ is pulled posteriorly behind the ______

bile duct, duodenum

41

the transition from the foregut to the hindgut is denoted where: the pancreas is formed

the common bile duct is rotated behind the duodenum and projects through the pancreas

42

it is possible to find two tubes for the pancreatic duct because the accessory because

the head of the pancreas rotates around to fuse with the body

43

coronary ligaments of the liver, this is where:

ventral mesentary never came together because the liver grew so fast and grew too large to be attaached

44

the intestines start by making a _____, the ___ aspect of the loop rotates counterclockwise, it herniates out into the umbilical cord

hairpin loop, distal,

45

the intestines are all attached by a ______ attached to the _____

dorsal mesentary, posterior wall (creating pockets

46

the outer dorsal mesentary ends up fusing with the organs behind and creates ____

mesocolon

47

stem cells in the gut start in the _____ and then shed off after _______.

crypt, 4 days

48

the stem cells in the intestines sit on top of the ______

plica

49

omphalocele:

the instestines are not absorbed back into the stomach but are covered with mesentary

50

gastroschisis

not covered in peritoneal lining, develops out

51

hind gut supplies:

inferior mesentaric artery

52

the proctodeum is ____

end of the GI tract

53

the ______ is the common sewer system for all things needing to be pumped out of the urinary system:

cloaca

54

membrane in the ____eventually deteriorates and is covered posterior by ______

anus mesoderm

55

membrane in the ____eventually deteriorates and is covered posterior by ______

anus mesoderm

56

the center of your ischium region is the _____

peroneal membrane (serves as a wall from the future urinary system and future hindgut) 2

57

shift from hindgut to proctode denoted by

petinate to white line (stratified squamous signs

58

intraretroperitoneal organs

dj illeus, tranny cece signed stomachs with a pen
duodenum 1-4, jejunum ilium, transverse colon, cecum, sigmoid colon, stomach, appendix

59

secondary retroperitoneal

2nd grade, colon powell had a duo, colon (ascending and descending, duodenum 2, 3

60

retroperitoneal

REtroperitoneal, rectum, esophogus