block 2 lecture 2 body cavity and lungs developemnt

Question 1

what are the three germ layers in embryonic development?

Answer 1

trimalinar disc: ectoderm, mesoderm and endoderm

Question 2

what is found outside the ectorderm?

Answer 2

amniotic cavity

Question 3

what is found beneath the trilaminar disc?

Answer 3

yolk sac

Question 4

what is the yolk sac lined by?

Answer 4

endoderm

Question 5

what is between the two pleural cavities?

Answer 5

pericardial cavity

Question 6

what cavity id beneath the diphargm?

Answer 6

peritoneal cavity

Question 7

what does the peritoneal cavity house?

Answer 7

the gut

Question 8

what are the lining of the different cavities?

Answer 8

mesothelium

Question 9

where do you find the developing brain?

Answer 9

in the middle of the ectoderm - its raised

Question 10

what does mesoderm form?

Answer 10

connective tissue

Question 11

what is the head end called?

Answer 11

cranial

Question 12

what is the tail end called?

Answer 12

caudal

Question 13

what is the precursor of the mouth?

Answer 13

oropharyngeal membrane

Question 14

what is found infront of the developing brain and mouth?

Answer 14

cardiogenic mesoderm

Question 15

initially how does the trilaminar disc fold?

Answer 15

the precursor of the anus and developing heart move nuder the developing CNS, walls of the yolk sac get closer together like a drawstring bag

Question 16

what is the gut tube continuous with?

Answer 16

the yolk sac

Question 17

how is the gut split?

Answer 17

for gut, mid gut and hind gut

Question 18

what is the precursor of the diaphragm?

Answer 18

septum transversum

Question 19

what does the septum transversum follow as it moves under the trilaminar disc?

Answer 19

the heart