Org Ana: GI Tract and Organs Flashcards

1
Q

where does the esophagus enter the abdomen

A

right crus of diaphragm

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2
Q

describe the structure of esophagus

A

muscular collapsible tube

10 inches long

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3
Q

arterial supp of esophagus

A

left gastric artery

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4
Q

venous supp of esophagus

A

left gastric vein

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5
Q

lymph supp of esophagus

A

flows to left gastric nodes

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6
Q

nerve supp of esophagus

A

left gastric nerves

ant and post gastric - vagi

symph branch of symph trunk ng thoracic

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7
Q

function of esophagus

A

conduction of food from pharynx to stomach gamit peristalsis and gravity

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8
Q

structure to bypass before entering stomach

A

gastroesophageal sphincter

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9
Q

structure of gastroesophageal sphincter

A

circular layer of smooth muscle - physiologic sphincter

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10
Q

function of gastroesophageal sphincter

A

prevent reflux of stomach contents kase yung components ng chime like acid pwede ma damge yung mucosa

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11
Q

closure and tightness of gastroesophageal sphincter is controlled by

A

vagus nerve and gastrin

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12
Q

reduces closure of gastroesophageal sphincter

A

secretin, glucagon, cholycystokinin

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13
Q

dilated portion of alimentary canal

A

stomach

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14
Q

function of stomach

A

stores food

turns into chyme

delivers to small intestine

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15
Q

what are rugal folds of stomach

A

increases surface area for mincing and digestion

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16
Q

where esophagus enters stomach

A

cardiac orifice - dito din gastroesophageal sphincter

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17
Q

where stomach becomes duodenum

A

pyloric orifice - dito pyloric sphincter

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18
Q

fucntion of pyloric sphincter

A

control discharge of gastric contents into duodenum

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19
Q

loc of lesser curvature

A

right border of stomach

cardiac orifice to pylorus

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20
Q

loc of greater curvature

A

left border of stomach

transverse colon banda until pylorus

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21
Q

what is fundus

A

dome shaped and projects upward

most sup part

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22
Q

what is body of stomach

A

from cardiac orifice to incisura angularis

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23
Q

what is incisura angularis

A

notch in lower part of lesser curvature

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24
Q

region that connects stomach to duodenum

A

pylorus

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25
Q

what is pyloric antrum

A

from incisura angularis to pylorus

last before before leaving sa pyloric canal

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26
Q

what is pyloric canal

A

leads to duodenum

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27
Q

describe longitudinal fibers of stomach

A

most superficial tas along the curves sha

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28
Q

describe circular fibers of stomach

A

encricles the body pero pinaka thick sa pylorus

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29
Q

describe oblique fibers of stomach

A

innermost and loops over fundus and go down ant and post wall

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30
Q

main source arteries

A

celiac trunk

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31
Q

blood supp of lower third ng esophagus and upper right stomach

A

left gastric artery

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32
Q

supplies lesser curvature, upper pylorus, lower right ng stomach

A

right gastric artery

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33
Q

supplies fundus

A

shirt gastric

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34
Q

supplies greater curvature

A

upper - left gstroepiploic

lower - right gastroepiploic

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35
Q

venous drainage of stomach

A

portal circulation

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36
Q

where does R and L gastric drain to

A

portal vein

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37
Q

where does short gastric and L gastroepiploic drain to

A

splenic vein

38
Q

where does R gastroepiploic drain to

A

superior mesentery vein

39
Q

nerve supp of stomach

A

anterior vagal from left vagus

post vagal from right vagus

40
Q

longest part of alimentary canal

A

small intestine

41
Q

location of small intestine

A

pylorus to iliocecal junction; demarcated by valve

42
Q

where is the duodenum found

A

epigastric and umbilical regions

43
Q

why is the 4 parts of duodenum important

A

bc it recieves opening from bile and pancreatic ducts tas yung secretions at juices nila

44
Q

loc of first part of duodenum

A

upwawrd and backward on transpyloric plane

begins at pylorus ab 2 in; L1

45
Q

loc of second part of duodenum

A

from hila ng right kidney pababa L2 and L3 kung san bile duct and main pancreatic duct pierce the duodenal wall

46
Q

what is ampulla of vater

A

sphincter that controls opening ng pancreatic duct at bile duct

exit point ng ducts

47
Q

another name for pancreatic duct

A

duct of wirsung

48
Q

what opens for accessory pancreatic duct

A

minor duodenal pappila aka DUCT OF SANTORINI

49
Q

loc of third part of duodenum

A

horiztontal at L3, papunta to L of subcostal

50
Q

loc of fourth part of duodenum

A

punta upward and to the left of duodenojejunal flexure

51
Q

what holds the fourth part of duodenum

A

ligament of treitz

52
Q

arterial supp of duodenum

A

upper part - superior pancreaticoduodenal artery

lower part - infrerior pancreaticoduodenal artery

53
Q

venous supp of duodenum

A

sup PDV - portal vein

inf PDV - sup mesenteric vein

54
Q

compare the size of jejunum and ileum

A

around 20 ft together

upper 2/5 - jejunum

lower 3/5- ileum

MAS MALAKI ILEUM

55
Q

what are plicae

A

fingerlike villi that lines the small intestines that increase absorptive capcity

56
Q

function of small intestines

A

carbs, fat and protein digestion

folds and villi - efficient

57
Q

what does plicae contain

A

network of cappilaries that surround special lymp kknown as LACTEAL

58
Q

loc of large intestine

A

ravels from left to right; from iluem to anus

INVERTED U

59
Q

function of large intestine

A

reabsorption of water and electrolytes

storage of feces

60
Q

what are haustrations

A

gives the segmented appearance; longganisa like

UNIQUE TO LARGE INTESTINES

61
Q

function of peristalsis in large intestines

A

drives feces from posteriorly or inferiorly para from rectum to anus

62
Q

composition of cecum

A

longitudinal muscles called TENAIE COLI that converse at base of appendix

CAVERNOUS - OFTEN DISTENDED WITH GAS

63
Q

name of longitudinal muscles of cecum

A

tenaie coli

64
Q

explain the relation of diseases in cecum

A

tumors can grow tas wala symptoms kase huge capacity ng cecum

problems at RIGHT side usually discovered late

65
Q

structure of ileocecal valve

A

2 horizontal folds of mucous membrane; sa orifice ng ileum

CIRCULAR MUSCLE AT LOWER END OF ILEUM

66
Q

what controls relaxation of ileocecal valce

A

gastrin galing sa stomach

67
Q

structure of appendix

A

lymphoid tissue; varies in length

68
Q

what is the own mesentery of appendix

A

mesoappendix

69
Q

artery of appendix

A

appendicular artery from CECAL artery

70
Q

loc of ascending colon

A

RLQ

71
Q

artery of ascending colon

A

ileocolic and right colic of superior mesenteric

72
Q

loc of transverse colon

A

umbilical tas at LEFT COLIC FLEXURE below spleen tas mag DESCEND

73
Q

blood sup of transverse

A

left colic artery

74
Q

loc of descending colon

A

left and upper lower quadrants

downward from left colic tas continous w sigmoid

75
Q

function of peritoneum in descending colon

A

covers front and sides and binds it posterior abdominal abdominal wall

76
Q

blood supp of descending colon

A

left colic and sigmoid branches from INFERIOR MESENTERIC ARTERY

76
Q

blood supp of descending colon

A

left colic and sigmoid branches from INFERIOR MESENTERIC ARTERY

77
Q

jejunum or ilieum

coiled in upper part of cavity below mesocolon

A

jejunum

78
Q

jejunum or ilieum

lies in lower part of cavity in pelvis

A

ileum

79
Q

jejunum or ilieum

wider, thicker wall and redder

A

jejunum

80
Q

jejunum or ilieum

narrower thinner wall and pale

A

ileum

81
Q

jejunum or ilieum

larger more numerous plica tas closely set

A

jejunum

82
Q

jejunum or ilieum

smaller widely spaced plica

A

ileum

83
Q

jejunum or ilieum

mesentery is attached above and left ng aorta

A

jejunum

84
Q

jejunum or ilieum

mesentery is attached below and right ng aorta

A

ileum

85
Q

jejunum or ilieum

mesentery from one or 2 arcades

A

jejunum

86
Q

jejunum or ilieum

mesentery from 3 or more arcades

A

ileum

87
Q

jejunum or ilieum

has peyer’s patches

A

ileum

88
Q

jejunum or ilieum

fat deposits near root sa end ng mesentery and less sa intestinal wall

A

jejunum

89
Q

jejunum or ilieum

fat deposited throughout from root until intestinal wall

A

ileum

90
Q

function peyer’s patches

A

enlarged in intestinal infections

enteric/typhoid fever will stimulate defense mechanism against bacteria