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ANATOMY TWO > GI > Flashcards

GI Flashcards

1
Q

The parts of esophagus?

A

cervical
thoracic
abdominal

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2
Q

type of muscles of esophagus?

A

inner circular and outer longitudinal
upper 1/3 striated
middle 1/3 mixed
lower 1/3 smooth

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3
Q

the constrictors of esophagus?

A
  • cervical, at pharyngoesophageal junction C5 (cricoid cartilage.
  • thoracic/aortic
  • diaphragmatic (formaed by the right crus)
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4
Q

shincters of esophagus?

A

upper ( formed by cricopharyngeus part of cricoid cartilage)

and lower ( formed by right crus and phrenicoesophegal lig)

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5
Q

laimer trigone?

A

proximal part of esophagus thats absent of longitudinal muscles.

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6
Q

where does esophagus meet the stomach?

A

at cardial orfice Th 11 or 7th costal cartilage

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7
Q

arterial supply of esophagus?

A
  • cervical part: branch from inferior thyroidal artery (thyrocervical trunk)
  • thoracic: branch of left and right bronchial a. (aorta)
  • abdominal part: Left gastric and left inf phrenic
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8
Q

innervation of esophagus?

A

vagus nerve

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9
Q

location of stomach?

A

left hypochondrium and epigstric region.

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10
Q

how many layers are fused at greater curvature of stomach?

A

6
4 due to 2 double layer of peritoneum
2 due to gastrocolic lig

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11
Q

parts of stomach?

A

cardia (T-11)
fundus (
body
pyloric part ( pyloric antrum and pyloric canal)

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12
Q

whats angle of his?

A

cardial notch wich functions as an extra valve in the stomach preventing reflux of gastric juice.

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13
Q

muscular layer of stomach?

A 
inner circular
middle longitudinal
outer oblique ( from cardia to angular notch only!)
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14
Q

ligaments of stomach?

A
  • hepatogastric lig ( contains R and L gastrig a. v. )
  • gastrocolic lig ( contains anastomosis b/w L and R
    gastroepiploic a.)
  • gastrosplenic lig: ( continues further to the left as phrenicsplenic lig, contains short gastric abit of L gastroepiploic.
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15
Q

arterial supply of stomach?

A
  • Left gastric (celiac trunk)
  • Short gastric a. (splenic a)
  • posteriro gastric a (splenic a.)
  • left gastroepiploic a. (splenic a)
  • right gastric ( proper hepatic a)
  • right gastroepiploic a. ( gastroduodenal a.)
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16
Q

venous drainage of stomach?

A
  • Left gastric vein–>portal v.
  • right gastric vein–>portal v.
  • short gastric vein–> splenic v.–>portal v.
  • left gastro-epiploic v.–> splenic v.
  • right gastroepiploic v. —> superior mesentery v.
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17
Q

innervation of stomach?

A

vagus and greater splanchic n.

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18
Q

Parts of small intesitine?

A

duodenum, jejunum, ileum

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19
Q

position of duodenum?

A

L1-L3

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20
Q

ligaments of duodenum?

A

suspensory ligaments of treitz

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21
Q

parts and their level of duodenum?

A
  • sup horizontal (L1) ( attached to hepatoduodenal lig)
  • descending ( L1-L3) ( contain junction of foregut and
    hindgut) (retroperitonel)
  • Inf horizontal (L3)
  • Ascending (l3-L2)
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22
Q

flexures of duodenum?

A
  • superior( at sup horizontal going to descending)

- Inf descending–> inf horizontal

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23
Q

arterial supply of duodenum?

A
  • superior (ant/post) pancreatico duodenal a. (gastroduodenal a)
  • inferior pancreaticoduodenal a. ( SMA)
  • gastroduodenal a. ( common hepatic a.)
  • supraduodenal a. ( gastroduodenal a.)
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24
Q

first riolan arch?

A

anastomosis b/w sup and inf pancreaticoduodenal arteries ( around head of pancreas)

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25
venous drainage of duodenum?
pancreaticoduodenal veins--> superior mesenteric v.
26
innervation of duodenum?
vagus and greater and lesser splanchnic
27
where does jejunum begin?
at the duodejojejunal flexure
28
difference b/w jejunum and ileum?
jejunum less prominent arterial arches and longer vasa recta then ilieum.
29
arterial supply of jejunum and ileum?
- jununal a. - ileal a. both from superior mesenteric a .
30
venous drainage of ilium and jejunum?
superior mesenteric v.
31
innervation of jejunum and ileum?
greater and lesser splanchinc and vagus
32
components of large intestine?
cecum, appendix, colon, sigmoid, rectum, anal
33
diffrences b/w large and small intestine?
Large has - omental appendices - tenia colic ( free, omental, mesocolic) - haustra
34
tenias of large intesitne?
- omental (postero-medaial) - free ( ant) - mesocoloc ( postero-lateral)
35
does sigmoid colon has three tenia?
No, only two, theomental teniae disapeares
36
location of cecum?
right iliac quadrant
37
properties of ceum?
- no mesentery - intraperitoneal - attached to the wall by cecal folds
38
vermiform appendix ?
contains masses of lymphoid tissue, has mesoappendix
39
what is McBurney point?
where appenix can be found. A line from ASIS to the umblicus.
40
arterial supplu cecum?
ilieocolic a
41
venous drainge of cecum?
ileocecal vein?
42
parts of colon?
Ascending, transverse and descending
43
what is right paracolic gutter?
Its recess lateralty to the ascending colon adjacent to abdominal wall. Its in continues with subhepatic recess and iliac fossa. Can play role in infection spread.
44
arterial supply of ascending colon?
Right colic a. ( SMA) | middle colic a. (SMA)
45
ligament on transverse colon?
- phrenicocolic lig | - 6 layer gastrocolic lig
46
level of transverse colon?
L3
47
arterial supply of transverse colon?
- middle colic a. ( SMA) | - left colic a. ( IMA)
48
what is 2nd riolan arch?
arch b/w left (IMA) and middle colic a. (SMA) | It marks the border b/w the hindgut and the midgut
49
venous drainage of transverse colon?
middle colic a.-->SMV
50
left paracolic gutter?
recess b/w abdominal wall and decsending colon, closed upward by phrenicocolic ligament
51
arterial supply of descending colon?
left colic a-->IMA
52
Marginal artery of drummond?
anastomosis b/w left and right colic a.
53
venous drainage of descending colon?
left colic v--> IMV
54
position of sigmoid colon?
iliac fossa-->S3
55
termination of teniae?
rectosigmoidal junction
56
arterial supply of sigmoid colon?
sigmoidal a--> IMA
57
what is sudeck point?
anastomosis b/w sigmoidal a and superior rectal a.
58
innervation of colon?
superior hypogastric n. | vagus
59
cannon -Böhm point?
where innervation oc colon changes from vagus-->sacral plexus. Also marks site of 2nd riolan arch.
60
properties of rectum?
Omental apendices and haustrations disapear and tenia from sigmoid form smootm m.
61
flexures of rectum?
rectum is S-shaped has one sacral flexure and perineal flexure.
62
folds of rectum?
2 on left side--> transverse rectal folds (houston valves) | 1 on right side--> kohlrauch fold
63
whats function of pararectal fossa?
allows distention of rectum
64
arterial supply of rectum
sup rectal a.-->IMA middle rectal a.-->Internal iliac a inf rectal a. --> internal pudendal a.-->internal iliac a.
65
venous drainage of rectum?
superior rectal v--> IMV | inf +middle rectal v--> Internal iliac v.
66
innervation of rectum?
superior hypogastric and pelvic splanchnic nerves
67
sphincter of anal canal?
- Internal - circular smoot m. - External - striated m.
68
what are the two anal sphincter seperated by?
corrugator cutis m of anus
69
what is pectinate line?
indicates the junction of sup part of anal canal (hindgut) and inf part (proctodeum)
70
arterial supply of anal canal?
``` sup rectal (above pectinate line) inf and middle rectal (beow pectineate) ```
71
innervation of anal canal?
- inf hypogastric ( above pectinate) | - pudendal n. ( below pectineate line)
72
what are the columns in anal canal called?
colums of morgani

ANATOMY TWO (22 decks)

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