Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Embryology > GI and Respiratory System Development > Flashcards

GI and Respiratory System Development Flashcards

1
Q

what is the only nervous system that can work without the brain and spinal cord

A

enteric

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

where does enteric nervous system originate from?

A

neural crest cell

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

where does notocord come from

A

mesoderm cells

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

what is the very first part of mesoderm

A

periaxialmesoderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

lateral plate mesoderm will be split into what two parts

A

parietal and visceral

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

what does endoderm form

A

inner epithelial lining of gut tube

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

gut tube is form from what

A

endoderm inside

visceral lateral plate mesoderm outside

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

oropharingeal membrane is also called what

A

buccopharyngeal membrane

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

what is the buccopharyngeal memebrane

A

separates mouth from pharynx

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

is mouth part of GI tract embryolically, why

A

NO - has skeletal muscle

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

GIT is divided into what 4 parts

A

pharyngeal foregut
foregut proper
midgut
hindgut

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

lung wall is formed from what

A

visceral lateral plate mesoderm (buds off of GI)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

what forms from pharyngeal foregut

A

epithelial lining of pharynx, larynx, lungs

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

what forms from foregut proper

A

epithelial lining of esophagus, stomach, liver, pancreas, first half of 2nd part of duodenum

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

does the kidney bud off of GI tract?

A

No

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What forms from midgut

A 
lining of rest of duodenum
jejunum
ileum
cecum
asc. colon
proximal 2/3 of transverse colon
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

what forms from hindgut

A 
distal 1/3 of transverse colon
desc. colon
bladder
rectum
upper 1/3 of anal canal
How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

where does hindgut end?

A

the cloaca

dendate or pectinate line

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

after the pecinate line what is it called

A

proctoderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

the gut wall is formed from what

A

visceral lateral plate mesoderm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

blood vessels from visceral lateral plate mesoderm forms what

A

entire cardiovascular system

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

what does the endoderm form?

A

all the inner lining of entire GI system + anything that buds off of it

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

what is esophageal atresia

A

esophagus ends as a blind sac

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

what causes esophageal atresia

A

improper esophageal recanlization
defective tracheosophageal septum
non vascularization of esophagus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

what is tracheosophgeal fistula

A

improper connection of esophagus to trachea

26
Q

what does tracheosophgeal fistula usually result in

A

polyhydraminos

27
Q

what is the major mover of the development of the foregut

A

stomach

28
Q

which side develops more quickly in foregut

A

back develops more quickly, causing 90 degree rotation

29
Q

what does the 90 degree rotation of stomach do

A

everything connected to stomach will also be moved

30
Q

the cardio region of stomach moves in which direction after 90 degree rotation

A

moves down

31
Q

what direction does pyloris move after 90 degree rotatoin fo stomach

A

up

32
Q

where is liver being forced to when the stomach rotates 90 degrees

A

to the right

33
Q

what is congenital hypertrophic pyloric stenosis

A

increase size (>2X) of the circular muscles of the pyloric sphincter resulting in poor or non passing of food to the duodenum resulting in projectile vomiting of food without bile

34
Q

what happens to duodenum when stomach undergoes 90 degree turn

A

rotate and become retroperitoneal

35
Q

describe how duodenum progress with its hollow/solid phases

A

starts hollow, then solid, then hollow

36
Q

what is duodenal atresia?

A

Normal duodenum’s lumen becomes filled in (5th / 6th week) but recanalizes by 8th week (like esophagus)

-If not recanalized shows up as double bubble sign (duodenum is blocked causing a distended gas filled stomach and duodenum causing projectile vomiting with bile as bile duct normally enters proximal to obstruction

37
Q

anything attaching to the liver to the stomach, what happens when stomach is rotated

A

it also rotates

38
Q

ventral mesentary only develops where

A

foregut

39
Q

what does hepatic divertuculum form?

A

ventral pancreas, hepatopancreatic, hepatic and bile ducts and gallbladder with the same endothelial lining

40
Q

as the pancreas goes to the back what does it pull with it

A

bile duct, common hepatic duct

41
Q

what happens to ventral pancreas

A

it fuses with dorsal pancreas

42
Q

ventral pancreatic bud fuses with what

A

dorsal pancreatic bud

43
Q

what form the walls of the pancreas

A

visceral lateral plate mesoderm

44
Q

main pancreatic duct merges with what

A

bile duct

45
Q

physiological umbiicatl herniation is normal due to what

A

growth of kidney and liver

46
Q

rostral limb is superior to what

A

SMA

47
Q

herniated midgut loop undergoes initial rotation around what

A

SMA

48
Q

what is total of rotations that midgut does

A

270degrees

49
Q

where does the hindgut end embryologically

A

cloical membrane

50
Q

upper part of anal canal develops from what

A

endodermal cloaca & lower part of ectoderm

51
Q

anal membrane ruptures in what week, and what is significance

A

9th week

in adult this represents pecinate line

52
Q

the internal laryngotracheal groove in larynx forms what

A

laryngotracheal diverticulum

53
Q

the laryngotracheal diverticulum forms what

A

tracheobronchial diverticulum

54
Q

what does tracheobronchial diverticulum divide into

A

lung buds & bronchial buds

55
Q

rostral part of tracheobronchial diverticulum is surrounded by what?

A

pharyngeal arches

56
Q

what is stage 1 of the development and maturation of lung

A

Pseudoglandular period

57
Q

what weeks is the Pseudoglandular period ?

A

5-16 weeks

58
Q

terminal bronchioles have no what

A

respiratory bronchiales

alveoli

59
Q

What is stage 2 of the development and maturation fo lung

A

Canalicular period

60
Q

what weeks is the Canalicular period ?

A

16-26 weeks

61
Q

what week have respiratory bronchioles develop, and respiration is possible?

A

24

62
Q

how many mature alveoli develop after birth

A

90-95%

Embryology (16 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions