Block 2 Lec 14 - Embryology of the Gut Flashcards Preview

Gross Anatomy Block 1 > Block 2 Lec 14 - Embryology of the Gut > Flashcards

Flashcards in Block 2 Lec 14 - Embryology of the Gut Deck (36):
1

primitive gut is formed from the blank germ layer

endodermal

2

ectoderm has blank

skin/ nervous system

3

mesoderm has blank

cartilage, blood, muscle, bone

4

endo derm has blank

gut

5

part of mesoderm that folds to create folding of the embryo

lateral plate mesoderm

6

fetal membrane that is connected to the hindgut

allantois

7

this cavity is formed at the end of the third week of embryonic life when intracellular clefts occur in the lateral plate mesoderm

intraembryonic coelomic cavity

8

coelomic cavity partitions to form these cavities

pleura, pericardial, peritoneal

9

four components of the diaphragm

skeletal muscle, mesoesophagus, pleuroperitoneal folds, septum transversum

10

septum transversum is a sheet of blank and forms the anterolateral region of diaphragm including the blank

mesoderm, central tendon

11

most of the fourth part of the diaphragm (skeletal muscle) is located blank

peripherally

12

these are caused by failure of the pleuroperitoneal folds to fuse

diaphragmatic hernias

13

foregut is supplied by blank

celiac artery

14

things that foregut is turned into

pharyngeal pouches, esophagus, trachea, lung buds, stomach, liver, biliary system, pancreas

15

development of esophagus is complicated by the the outpocketing of the respiratory or blank diverticulum

tracheobronchial

16

the stomach blank during devevlopment

rotates

17

rotation of stomach results in the left vagus nerve to become blank

anterior

18

dorsal mesentery forms these

omental bursa, greater omentum, lienorenal lig, jejunum, ileum, transverse and sigmoid mesocolon, mesoduodenum (lost in adult)

19

ventral mesentary forms these

lesser omentum, falciform ligament

20

liver and gallbladder forms from blank

liver bud (hepatic diverticulum)

21

part of liver that never completely detaches from septum transversum and lacks a covering of peritoneum

bare area

22

ventral pancreas splits and encloses the second part of duodenum and obstructs it

annular pancreas

23

spleen is not part of the blank

foregut

24

spleen is suspended to to the back wall by the blank

lienorenal ligament

25

spleen is attached to the stomach by blank

gastrosplenic ligament

26

axis for rotation of the midgut

superior mesenteric artery

27

two normal developments of the midgut

herniation, retraction

28

this results from the failure of the gut to return to abdomincal cavity after retraction and 180 degree rotation

omphalocoele

29

ascending colon is part of the blank

midgut

30

descending colon is part of the blank

hindgut

31

ascending and descending colon fuse with dorsal body wall after rotation which causes them to become blank

secondarily retroperitoneal

32

mesentary of the sigmoid colon

sigmoid mesocolon

33

hindgut is from blank to blank

descending colon, anal canal

34

midgut is from blank to blank

horizontal/ascending duodenum, transverse colon

35

foregut is from blank to blank and includes blank

pharynx, superior/descending duodenum most organs

36

connection of primitive gut to endodermal yolk sac

yolk stalk (vitelline) (omphalomesenteric duct)