Practical topic 35 Flashcards

Small and large intestines and their suspension

1
Q

Give the parts of the small intestines

A
  1. Duodenum
  2. Jejunum
  3. Ileum
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2
Q

Duodenum

From → to

A

Pylorus → jejunum

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3
Q

Give the parts of the duodenum

A
  • Flexura duodeni cranialis
  • Duodenum descendens
    • In contact with parietal peritoneum
    • Runs caudally towards the right kidney
  • Flexura duodeni caudalis
  • Duodenum transversa
  • Duodenum ascendens
    • Runs cranially
    • Plica duodenocolica (ascending duodenum → descending duodenum)
  • Flexura duodenojejunalis
    • Susupended by the mesoduodenum
      • Originates from the dorsal abdominal wall
      • Encloses right lobe of pancreas
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4
Q

Pappilas of the dudoenum

A
  • Papilla duodeni major
    • Bile duct and pancreatic duct
  • Papilla duodeni minor
    • Accessory pancreatic duct
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5
Q

Give the parts of the pancreas

A

Two lobes:

  • Left lobe
    • In bursa omentalis
      • left + right pole
  • Right lobe
    • In mesoduodenum
      • Cranial + caudal pole
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6
Q

What is jejunum covered by

A

Omentum major

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7
Q

From which artery does jejunum receive nutrition?

A

A. mesenterica cranialis

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8
Q

What is jejunum suspended by

A
  • Mesojejunum
    • From the dorsal abdominal wall
    • At the ileocecal junction → continues with the descending mesocolon
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9
Q

What marks the position/length of ileum?

A

A. antimesenterica

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10
Q

What is localized between ileum and caecum?

A

Plica ileocolica

Fold between the ileum and the caecum

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11
Q

Give the parts of the large intestines

A
  • Caecum
  • Colon
  • Rectum
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12
Q

What is the attachment between:

  1. Ileum to caecum
  2. caecum to colon
A
  1. Plica ileocaecale
  2. Plica caecocolica
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13
Q

Where does the caecum communicate with the ascending colon?

A

At the cecocolic orifice (ostium caecocolicum)

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14
Q

What is colon suspended by

A

Mesocolon

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15
Q

Give the parts of the colon

A
  1. Colon ascendens
    • ​​Shortest
    • Lies right to the root of the mesentery
  2. Flexura coli dextra
  3. Colon transversus
    • ​​Right → left.
    • Lies cranial to a. mesenterica cranialis
  4. Flexura coli sinistra
  5. Colon descendens​​​​​
    • Longest, wider mesocolon
    • Dorsal and left in abdomen
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16
Q

What ends at the entrance of the pelvic inlet and becomes the rectum?

A

Plica duodenocolica

Between ascendens duodenum and descendens colon

Ends at the entrance of the pelvic inlet and becomes the rectum

17
Q

At the level of which vertebrae does the rectum begin

A

At the level of L7

18
Q

Which muscle forms the outer longitudinal layer of the rectum?

A

M. retrococcygeus

19
Q

Give the suspensions of the mesentrium

A
  • Mesoduodenum
  • Mesojejunum
  • Mesoileum
  • Mesocolon
    • Mesocolon ascendens
    • Mesocolon transversum
    • Mesocolon descendens
  • Mesorectum
  • Velum omentale
20
Q

Mesoduodenum

A
  • From dorsal abdominal wall to the duodenum
  • Encloses right lobe of the pancreas
  • Cranially: continuous with omentum majus
  • Caudally: to duodenum flexura caudalis
21
Q

Mesojejunum

A

From dorsal abdominal wall to jejunum

22
Q

Mesoileum

A

From dorsal abdominal wall to ileum

23
Q

Mesocolon

A
  • Mesocolon ascendens
    • From dorsal abdominal wall to ascending colon
  • Mesocolon transversum
    • From dorsal abdominal wall to colon transversum
  • Mesocolon descendens
    • From dorsal abdominal wall to descending colon
24
Q

Mesorectum

A

From dorsal abdominal wall to rectum

25
Q

Velum omentale

A

Attachment between mesocolon and spleen

26
Q

Blood supply to cranial duodenum

A

A. gastroduodenalis (ex. a hepatica, ex. a. coelica)

27
Q

Blood supply to descending duodenum

A

A. pancreaticoduodenalis caudalis (ex. a. mesenterica cranialis)

28
Q

Blood supply to jejunum

A

Aa. jejunalis (ex. a mesenterica cranialis)

29
Q

Blood supply to ileum

A
  • A. ilei mesenterialis ( ex. a. ileocaecocolica, ex. a. mesenterica cranialis)
  • A. antimesenterica
30
Q

Blood supply to caecum

A

A. caecalis (ex. a. ileocolica, ex. a. mesenterica cranialis)

31
Q

Blood supply to colon ascendens

A
  • R. colicus (ex. a. ileocolica)
  • A. colica dextra (ex. a. mesenterica cranialis)
32
Q

Blood supply to colon transversum

A

A. colica media (ex. a. mesenterica cranialis)

33
Q

Blood supply to a. colon descendens

A
  • A. colica sinistra (ex. a. mesenterica caudalis)
  • A. colica media
34
Q

Blood supply to rectum

A

A. rectalis cranialis (a. mesenterica caudalis)

35
Q

Where does all the intestines drain into?

A

All the organs drain into venae portae to the liver

36
Q
A
  1. Aorta abdominalis
  2. A. Celiaca
  3. A. splenica
  4. A. gastrica sinistra (left)
  5. Spleen
  6. Pancreas
  7. Stomach
  8. A. mesenterica cranialis
  9. A. mesenterica caudalis
  10. Colon descendens
  11. A. renalis
    • Supplying the kidey
  12. ​A. iliacia circumflexa profundus
  • ​→ A. testicularis
  • * Vaginal ring
37
Q
A
  1. Ileum
  2. A. antimesenterica
  3. Plica ileocecalis
  4. Colon ascendens
  5. Colon transversum
  6. Fundus of the stomach
  • * Cecum
  • → Mesenteric lymph nodes
38
Q

Pancreas, fresh tissue

A
  1. Left lobe of pancreas
  2. Omentum major
  3. Right lobe of the pancreas
  4. Mesoduodenum
  5. Body of the pancreas
  6. Stomach
  7. Descending duodenum
  8. Ascending duodenum
  9. Transverse colon
  10. Descending colon