Brainscape's Knowledge GenomeTM

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


See full index

Digestivo > Embriology > Flashcards

Embriology Flashcards

1
Q

Origin of epith of digestive tract + parenchyma of some glands

A

Endoderm

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

Origin of muscle walls of viscera + CT layers surrounding viscera

A

Mesoderm

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

Liver arises from

A

Liver bud

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

Liver bud protrudes into

A

Ventral mesogastrium

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

Ventral mesogastrium divides into

A

Gastrohepatic / lesser omentum
Falciform ligament

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

Gastrohepatic / lesser omentum connects

A

Stomach and liver

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

Falciform ligament connects

A

Liver to the ventral wall

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

Liver location

A

R side

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

Liver functions

A

Glycogen production
Albumin production
Protein metabolism
Bile secretion
Hematopoietic function (after embryonic splanchnic mesoderm)

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

Bile is stored in

A

Gallbladder

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

Gallbladder origin

A

Hepatic duct grows and gives it

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

Gallbladder is connected to the liver by

A

Cystic duct

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

Gallbladder reaches duodenum through

A

Common bile duct

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

Pancreas origin from

A

Ventral + dorsal pancreatic duct
They fuse and for the head, neck and body

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

Ventral pancreatic duct arises from

A

Common bile duct

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

Relation main pancreatic duct - duodenum

A

It opens through the common bile duct into the 2nd portion of the duodenum, so both hepatic and pancreatic secretions enter here to participate in digestion.

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

Accessory pancreatic duct origin

A

Dorsal pancreas duct that persist a persist as a little accessory pancreatic duct

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

Accessory pancreatic duct function

A

When the main pancreatic duct is blocked

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

Separation between the derivatives of the foregut and the derivatives from the midgut

A

Major duodenal papilla

20
Q

Major duodenal papilla marks

A

Point where main pancreatic duct and bile duct drain into duodenum

21
Q

Minor duodenal papilla

A

Where accessory pancreatic duct drains into the duodenum in case of blockage of the main one

22
Q

Stomach formation

A

It rotates around its long axis 90º clockwise —> behind it appears ommental bursa / lesser sac

Post walls grow faster —> increased curvature on L side

Cardiac portion: downwards
Pyloric portion: upwards

23
Q

Stomach is connected and attached by

A

Mesenteries

24
Q

Liver arises within

A

Ventral mesogastrium

25
Q

Pancreas and spleen arise within

A

Dorsal mesogastrium

26
Q

Dorsal mesogastrium gives rise to

A

Greater omentum

27
Q

Mesenteries definition

A

Double layer of peritoneum

28
Q

Mesenteries function

A

Connects viscera to dorsal and ventral walls

29
Q

Esophagus formation

A

From foregut ventral wall —> respiratory diverticulum that will be separated from esophagus by tracheoesophageal septum

30
Q

Anomalies in esophagus formation

A

Tracheoesophageal fistulas —> prenatal: polyhydramnios / postnatal: regurgitation)
Incomplete recanalization (stenosis)
Congenital hiatal hernia —> stomach herniates into thoracic cavity

31
Q

Midgut definition

A

Part of the gut tub that remains connected to the yolk sac after the folds progresses.
Connected to abdominal wall by dorsal mesentery through which arteries can access

32
Q

Midgut location

A

Inferiorly to major duodenal papilla -> junction prox 2/3 - distal 1/3 of transverse colon

33
Q

Disposition changes of the midgut

A

(Dorsal mesentery rotates along w/ structures)

5th week: U-shape loop has sup+inf limb & vitelline duct

6th week: midgut limb growth + not enough space = physiological herniation into umbilicus (90º rotation) —> sup limb to R (small intest loops), inf limb to L (large intest derivatives)

10th week: enough space -> physiolog hernia reduction —> inf limb also enters but rotates 180º

34
Q

Anomalies of the midgut development

A

Malrotation

Meckel’s diverticulum - by persistence of vitelline duct

Umbilical hernia - by unproperly abd musculature closure

Omphalocele - by failure of reduction of physiolog herniat.

Gastroschisis - by incomplete closure of lat folds (viscera bathed by amniotic fluid)

35
Q

Hindgut location

A

Begins just before L colic flexure/ splenic flexure
Ends in the cloacal membrane

36
Q

Caudal portion of the hindgut =

A

Cloaca

37
Q

Post to the cloaca is the

A

Allantois

38
Q

Allantois is related to

A

Bladder and urogenital system

39
Q

Hindgut is separated from allantois by

A

Urorectal septum

40
Q

Urorectal septum definition

A

Mesoderm ridge that will form the perineum

41
Q

Urorectal septum development

A

Will grow caudally and separate cloaca into
- ant: allantois
- post: rectum and anal canal

Will separate the cloacal membrane into
- urogenital membrane
- anal membrane

42
Q

Cloacal membrane gives rise to

A

Proctodeum

43
Q

Anal canal origins

A
  • 1º 2/3 of anal canal —> from hindgut
  • last 1/3 of anal canal -> from proctodeum (= ectoderm invagination)
44
Q

Last portion of anal canal innervation and irrigation

A

Innervation: somatic
Irrigation: inf and middle rectal veins -> common iliac veins

45
Q

Anal membrane rupture

A

8th week

46
Q

Congenital anomalies of the hindgut

A

Incorrect development of urorectal septum
- imperforate anus
- rectovaginal fistula
- fistula ureters-rectum
- rectal atresia

Megacolon/ Hirschsprung disease
(non-proper migration of NCC during 4-5th week = no PS ganglia = no peristalsis = food accumulation = dilation)

Digestivo (4 decks)

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