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CAPS391 Winter 2023 > Lecture 26: Lower GI > Flashcards

Lecture 26: Lower GI Flashcards

1
Q

label 1-6

A
  1. liver
  2. pancreas
  3. transverse mesocolon
  4. mesntery
  5. uterus
  6. rectum
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2
Q

label 7-14

A
  1. coronary ligament
  2. lesser omentum
  3. stomach
  4. transverse colon
  5. greater eomentum
  6. visceral Peritoneum
  7. parietal Peritoneum
  8. Urinary bladder
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3
Q

what is peritoneum

A

serous membrane containing most of abdo viscera. produces serous fluid, facilitate movement lower GI against each other

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4
Q

what are two layers peritoneum

A

parietal
peritoneum, that lines the wall of the abdominopelvic cavity, and
the visceral peritoneum, which covers the surface of most of the
abdominal and pelvic viscer

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5
Q

peritoneal ligament

A

connects two abdominal organs together

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6
Q

mesentery

A

connects small intestine to posterior abdo wall

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7
Q

meso

A

connects different parts of large intestine to posterior abdo wall

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8
Q

omentum

A

attached to stomach

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9
Q

intraperitoneal organs

A

completely covered by visceral peritoneum

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10
Q

retroperitoneal organs

A

located btw parietal peritoneum and posterior abdominal wall

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11
Q

peritoneal cavity in M vs F

A

slim space between parietal and visceral
layers of the peritoneum
contains serous fluid to lubricate the surfaces of the abdominal contents.

The peritoneal cavity is
an enclosed sac in males

in females it is connected with exterior
via the cavity of the uterine tubes, uterus and vagina.

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12
Q

what are the three types of peritoneal reflections

A

peritoneal ligament: connect abdo viscera to abdo walls or other organs (i.e. falciform ligament, connects liver to ant abdo wall and diaphragm)

  1. mesenteries: connect small intestine (except duodenum), transverse colon, sigmoid colon, appendix to posterior abdo wall

3.omenta: stretched btw stomach and other organs
greater omentum connects greater curvature of stomach to transverse mesocolon

lesser omentum connects liver to small curvature of stomach and first part duodenum

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13
Q

what sensitizes the parital peritoneum

A

afferent somatic fibres (phrenic, lower intercostal)

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14
Q

what sensitizes visceral peritoneum

A

afferent autonomic fibres

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15
Q

fxn peritoneal reflections

A

passageway for blood vessels, nerve, lymphatic vessels. avoid entanglement

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16
Q

coronary ligament

A

peritoneal ligament which attaches liver to another organ, diaphragm

17
Q

what are intraperitoneal organs

A

stomach, uterus, liver, small intestine, some of large intestine

LULSS

18
Q

what are retroperitoneal ligaments

A

pancreas, rectum, bladder , kidney

PBR, K?

19
Q
A
  1. liver
  2. lessesr omentum (aka gastrohepatic lig.)
  3. stomach
  4. greater omentum
20
Q

how does greater omentum move? whats it attached to

A

chemotaxic movement

attached to greater curvature of stomach and free brder inferiorly

21
Q
A
  1. greater omentum
  2. transverse colon
  3. transverse mesocolon (peritoneal ref.)
    4.descending colon
    5.mesentery (binds small intestine to post abdo wall)
  4. sigmoid mesocolon (attach sigmoid colon to post abdo wall)
  5. sigmoid colon
22
Q

label A-D

A

A. Fundus
B. Body
C. Pyloric antrum
D.Pyloric canal

23
Q

label 1-7

A
  1. duodenum
  2. pyloris
  3. lesser curvature
  4. esophagus
  5. cardia
  6. greater curvature
  7. rugae
24
Q

what is cardia

A

where stomach joins esophagus
at TXI

25
Q

what is fundus

A

part of stomach above cardia

26
Q

what is body of stomach

A

part below cardia

27
Q

what are rugae

A

folds. only visible when stomach is empty. allows espanxion

28
Q

3 parts of small intestine

A
  1. duodenum: retroperitoneal. 25 cm
  2. jejunum: first 2/5 of small intestine. mostly in umbillical region
  3. ileum: 3/5 of small intestine. mostly hypogastric region

jejunum and ileum are intraperitoneal. attached to posterior wall by mesentery

29
Q
A
  1. vermiform appendix
  2. cecum
  3. ileoceccal valve
  4. right colic (hepatic) flexure
  5. lef colic (splenic) flexure
  6. tenia coli
  7. haustrum
  8. anal canal
30
Q

how long is large intestine

A

1.5m

31
Q

cecum

A

receives ileum and opening appendix

32
Q

fxn appendix

A

part of immune system. important begore age 10 for B lymphocytes

33
Q

where does ascending colon bend

A

just below liver. = right colic flecure (aka hepatic flexure)

34
Q

where does transverse colon bend

A

left colic/splenic flexure

35
Q

what is tenia coli

A

band of smooth muscle fibre in large intestine. contraction = sac like tructure form along length of intesine = Haustrum

36
Q

blood supply abdominal part of alimentary canal

A

celiac trunk divides into L gastric, common hepatic, and splenic branches which supply esohagus, stomach, liver, gall bladder, spleen, pancreas, upper duodenum

superior mesenteric artery supplies lower duodenum, small part of pancreas, small intestine, cecum, appendix, ascending colon, right 2/3 transverse colon

inferior mesenteric artery supplies left rhid of transverse colon, descending colon, sigmoid, rectum, anal canal

37
Q

sympathetic niput to abdomino-pelvic region

A

splanchnic nerves

38
Q

PSN input to abdomino-pelvic region

A

CNX or pelvic sphalcnic

CAPS391 Winter 2023 (29 decks)

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