development of the digestive system

Question 1

what side of the bi lamiar disk faces the yok sac

Answer 1

hypoblast

Question 2

what side of hte bi laminar dis faces the amiotic cavity

Answer 2

epiblast

Question 3

3 layers of the trailanar disk form superior to inferior

Answer 3

ectoderm, mesoderm, endoderm

Question 4

what plate of the mesoderm gives rise to the gut tube

Answer 4

lateral to partial and viceroal mesoderm

Question 5

what gnee causes the formaitno fo teh gut tube

Answer 5

sonic hedge hoge gened

Question 6

where is the shh gene secred form

Answer 6

endodermal cells

Question 7

how is the oesphagus formed

Answer 7

craidal part ofhte gut tube

Question 8

where does hte lung bud devolp form

Answer 8

vental wall of fore gut (gut tube)

Question 9

what is hte laeyr betweent the traceha nd ospguas during deplpemtn

Answer 9

tracheosopgaul ridge

Question 10

what is the function of hte foregut o the stomahc

Answer 10

dilates to form eht somach

Question 11

at waht poit is the stomach fored

Answer 11

week 4

Question 12

what attahces stomahc in emobly to the the vental and doral wall

Answer 12

mesogastrium mesenetary

Question 13

which way doe sth sotmahc fold

Answer 13

along longitudal aces, and pusll doral mesnerary to hte left

Question 14

what is hte duodenum fored form

Answer 14

caudal par tof the foreguat and crainal part of hte midgut

Question 15

what is formed along sid eh duodenum

Answer 15

coelicac turnk and sma

Question 16

what week is the liver bud formed at

Answer 16

3

Question 17

what is the endoderml oragin cell in liver

Answer 17

hepatocyes and bilary epithelia

Question 18

what is the mesodermal origain cells in the liver

Answer 18

kupffer celsl , hepmetopeitc el snad ct cells

Question 19

what layer of the disk does gall blader and cycdist duct form form

Answer 19

endoderm

Question 20

what week does bile form at

Answer 20

week 12

Question 21

what dos ehte falicumar liagment and less er moment delpo mform

Answer 21

vental mesenatyr

Question 22

where does the spleen origanate from

Answer 22

mesoderm

Question 23

what week is the spleat

Answer 23

5

Question 24

what week is the spleen colonsied by t lymphocyes

Answer 24

15-17

Question 25

what week is hte b clel sprecorues arrive and the spleen starts its lymphoid funtion

Answer 25

week 23

Question 26

where does th pancrease origin form

Answer 26

endoderm

Question 27

what week does hte pancrease develop

Answer 27

week 4

Question 28

how does ht pancrease roate

Answer 28

back and towards left side of the body at week 6

Question 29

oseophageal atresia

Answer 29

meaning tehat the ospagua is randomly closed

Question 30

trachemoosphgal fisutreal

Answer 30

the osphgaus is connected to the trachea still

Question 31

what directio doe shte inteis al loops go to form

Answer 31

anticloackwise

Question 32

what is hte viteline duct

Answer 32

connects yolk sack to mid gut for fecal devopment

Question 33

what is hte the week vietline duct disaperas

Answer 33

weeks 12- 14, it disoced at week 6

Question 34

what is aboalriaotain of hte midgut

Answer 34

small intisn on right side and large intes on the left side

Question 35

what is revered ratin ofhte midgut

Answer 35

the dudenum goes in front ofthe tranverse colon, no behind it

Question 36

what is a omphalecle

Answer 36

the failur o fhte retaio of the hernaied intesial loops at week 12

Question 37

what are the forms of remiants of the vitelline duct

Answer 37

merkesl divercil, vitelline cyst , vitellium fistula

Question 38

what is form the endodermal origina

Answer 38

distal 1/3rd tranverse colon, decding colon, sigmoid colon, rectum and upper part of the anal canal

Question 39

what is the ecto dermal origan of the hind gut

Answer 39

lower part of hte anal canl and anla orrifice

Question 40

what us the cloacla membaren

Answer 40

tube that form blder and uteres which rupures at week 7

Question 41

what is the urorectal fistula

Answer 41

where the anus joins with urela and is not formed forely

Question 42

what is the gertoviaginal firus,

Answer 42

anus jon with vigina

Question 43

what is the retroperinal fistual

Answer 43

in propopar form of rectal canla

Question 44

what is the interforated antus

Answer 44

anus does not form