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Anatomy - Block 2 > L6 - Intestines > Flashcards

L6 - Intestines Flashcards

1
Q

Small Intestine is how many meters long?

A

7 meters long

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2
Q

In cadavers intestines are longer. T or F

A

True.

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3
Q

Why are intestines shorter in living humans?

A

tonic contraction

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4
Q

Duodenum and it’s parts : Superior

A

1st part :Superior
first 2 cm intraperitoneal
celiac trunk

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5
Q

Duodenum and it’s parts: Descending

A

2nd Part.

Celiac trunk. Receives enzymes from the pancreas. Hugs the head of the pancreas

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6
Q

Duodenum and it’s parts: Horizontal

A

3rd part. Superior Mesenteric Artery.

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7
Q

Duodenum and it’s parts: Ascending

A

4th part.

SMA. joins the jejenum

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8
Q

Which of the following are NOT primary or secondary retroperitoneal?A. Pancreas
B. Kidneys
C. Suprarenal Glands
D. Duodenum (Descending, Horizontal and Ascending)
D. Descending Colon
E. Ascending Colon
F. Transverse Colon

A

F. Transverse Colon

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9
Q

Celiac Trunk

A

Left Gastric
Splenic Artery
Common Hepatic

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10
Q

Ligament of Treitz:

A

Demarcates the duodenum and jejunum junction

Made by Right Crus

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11
Q

Ligament of Treitz location

A

Ligament of Treitz passes behind the pancreas and is attached above to the spine and the diaphragm.

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12
Q

Ligament of Treitz contraction:

A

Contraction of this muscle widens the angle of the duodenojejunal flexure facilitating movement of the intestinal contents

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13
Q

Ligament of Treitz : composed of?

A

This muscle is commonly composed of a slip of skeletal muscle from the diaphragm and a fibromuscular band of smooth muscle from the 3rd and 4th parts of duodenum

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14
Q

Mesentery hold what?

A

blood
lymphatic
nervous supply

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15
Q

Jejenum increases surface area because of ?

A

folds

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16
Q

Pilcae Circulares are only in what?

A

Jejenum and Proximal ileum

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17
Q

Terminal Ileum has what?

A

Lymphatic Nodules:

Peyers patch

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18
Q

Bariatric Surgery

A

Jejenum is connected to the upper patrt of the stomach bypassing lower parth of the stomach and duodenum which results in less absorption

19
Q

Movement of Bowel:

A 
Ileocecal junction
Cecum
Vermiform appendix
Ascending colon
Transverse colon
Descending colon
Sigmoid colon
Rectum
Anus
20
Q

Retroperiotenal organs in Large Intestines

A

Ascending Colon

Descending Colon

21
Q 
Which of these does NOT have plicae circulares?
A. Proximal Ileum
B. Jejunum
C. Terminal Ileum
D. A and C
A

C. Terminal Ileum

22
Q

Large Intestine or Colon

A

Retroperitoneal:

Ascending and Descending

Intraperitoneal:

Transverse colon
Sigmoid
Appendix on mesoappendix

23
Q

Large intesitine or colon has 7 parts

A
  1. Cecum
  2. Ascending colon (retroparitoneal)
  3. Transverse colon(intraperitoneal)
  4. Descending colon (Retroperitoneal)
  5. Sigmoid colon (intraperitoneal)
  6. Rectum
  7. Anal canal
24
Q

Tenia Coli allows for what organ to fxn?

A

Large intestine

25
Q

Tenia Coli produces?

A

Haustra

this passes stool

26
Q

Hirschsprung’s disease (congenital megacolon)

A

LACK of Haustra –> No stool is passed due to lack of neural control

This is the most important disease of large intestine in infants and children

  • defecation is not possible because
  • a segment of the lower rectum is completely devoid of ganglion cells in the submucosa and muscularis layers
27
Q

Various possible locations for the appendix (In general, right lower quadrant) T or F

A

True

28
Q

Do we have more lymphatic nodules in the appendix later on in life or earlier?

A

earlier

29
Q

Most common location of Appendix?

A

Retrocecal postion

30
Q

Appendix does what for the immune system?

A

B-cells differentiation into immunocompetent cells

contains lymphatic nodules that help form immune cells

31
Q

Rectum, involuntary muscle?

A

Internal anal sphincter : urge

32
Q

Rectum, voluntarily muscle ?

A

External anal sphincter : pressure you put.

33
Q

Blood Supply to intestines. Foregut :

A

Celiac Trunk

34
Q

Blood Supply to the intestines : Midgut

A

SMA

35
Q

Blood Supply to the Hindgut :

A

IMA

36
Q

SMA Branches

A 
Anterior & Posterior INFERIOR Pancreaticoduodenal Arteries
Ileocolic Artery
Right Colic Artery
Middle Colic Artery
Intestinal Arteries
Secondary Arcades
37
Q

Which of these most likely supplies the appendix?

A

A. Ileocolic Artery

38
Q

IMA Branches

A

Marginal Artery
Left Colic Artery
Sigmoid Arteries
Superior Rectal Artery

39
Q

the right side of the body : ?? lymphatic trunk,

A

Right

40
Q

Left side of the body :

?? thoracic duct

A

Left Thoracic Duct

41
Q

Chyle cystern

A

Chyle cystern is a thin-walled sac at the inferior end of the thoracic duct.

42
Q

Chyle Cistern –>

A

Chyle Cistern–>Thoracic Duct -> Left Subclavian Vein

43
Q

Foregut + Midgut -> (Parasympathetic nerve) + (Sympathetic nerve)?

A

Foregut + Midgut -> Vagus (P) + Thoracic Splanchnics (S)

44
Q

Hindgut->

(Parasympathetic nerve) + (Sympathetic nerve)?

A

Hindgut->Pelvic Splanchnics (P) + Lumbar Splanchnics (S)

Anatomy - Block 2 (8 decks)

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