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Anatomy Exam 3 > Lecture 25: Posterior Abdominal Wall > Flashcards

Lecture 25: Posterior Abdominal Wall Flashcards

1
Q

What muscles make up the posterior abdominal wall?

A
  • Psoas major
  • Psoas minor
  • Iliacus
  • Quadratus lumborum
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2
Q

What are the three unpaired branches of the abdominal aorta?

A
  • Celiac trunk
  • Superior mesenteric artery
  • Inferior mesenteric artery
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3
Q

Describe landmarks for the beginning and termination of the abdominal aorta

A

extends from aortic hiatus to bifurcation into common iliac

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4
Q

What are the three paired visceral branches of the abdominal aorta?

A
  • Middle suprarenal arteries
  • Renal arteries
  • Gonadal arteries
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5
Q

What are the five paired somatic branches of the abdominal aorta?

A
  • inferior phrenic arteries

- four pairs of lumbar segmental arteries

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6
Q

What are the terminal branches of the celiac trunk?

A
  • splenic artery
  • left gastric artery
  • common hepatic artery
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7
Q

What are the branches of the common hepatic artery?

A 
• Right hepatic
• Left hepatic
• Cystic artery
• Right gastric
- gastroduodenal
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8
Q

Where does the right gastric artery travel?

A

along lesser curvature of stomach

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9
Q

where does the right gastroepiploic artery travel?

A

along greater curvature of stomach

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10
Q

Where does the superior pancreaticoduodenal artery travel and what does it supply?

A

travels along head of pancreas and supplies duodenum and pancreas

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11
Q

What does the superior mesenteric artery supply?

A

most of the duodenum and intestine to left colic flexure

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12
Q

What does the right colic artery supply?

A

ascending colon

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13
Q

What does the ileocolic artery supply?

A

ileum, cecum, appendix and ascending colon

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14
Q

What does the inferior mesenteric artery supply?

A

intestine beginning with left colic flexure to upper half of anal canal

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15
Q

What are the branches of the inferior mesenteric artery?

A

left colic branch
sigmoid arteries
superior rectal artery

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16
Q

what does the left colic branch supply?

A

descending colon

17
Q

What does the sigmoid arteries supply?

A

descending and sigmoid colon

18
Q

What does the superior rectal artery supply?

A

proximal rectum

19
Q

What are the paired lateral branches of the aorta?

A
  • Suprarenal
  • Inferior phrenic
  • Renal: Gives off five segmental arteries
  • Testicular or ovarian
  • Lumbar (4 pairs)
20
Q

What are the terminal branches of the aorta?

A

common iliacs

median sacral

21
Q

What forms the inferior vena cava?

A

union of paired common iliac veins

22
Q

What is the definition of a portal system?

A

• Venous connection
between two organs other than the heart
• Vein connecting two capillary beds

23
Q

What are examples of a portal system?

A
  • Hepatic
  • Hypophyseal
  • Renal (not in mammals)
24
Q

What do the thoracoabdominal nerves (T7-T11) innervate?

A

anterior abdominal muscles, overlying skin and peripheral diaphragm

25
Q

What does the subcostal (T12) nerve innervate?

A

inferior external oblique and skin anterior superior iliac spine and hip

26
Q

What does the iliohypogastric nerve innervate?

A

lateral buttock

hypogastric region

27
Q

What does the illioinguinal nerve innervate?

A

skin of groin
scrotum
labia

28
Q

What does the vagus nerve do?

A
  • provides parasympathetic innervation to abdominal viscera

- supplies innervation as far as left colic flexure

29
Q

Are the thoracic splanchnic nerves sympathetic or parasympathetic?

A

sympathetic

30
Q

What do the visceral branches of T5-T12 sympathetic ganglia or thoracic splanchnic nerves supply?

A

abdominal organs rather than thoracic organs

31
Q

The greater splanchnic nerve’s celiac plexus is sympathetic to what?

A

Sympathetic to stomach, duodenum, ileum, jejunum, spleen, pancreas, gall bladder, kidneys, and suprarenal glands

32
Q

The greater splanchnic nerve’s hepatic plexus is sympathetic to what?

A

the liver

33
Q

The lesser splanchnic nerve superior mesenteric plexus is sympathetic to what?

A

Sympathetic to duodenum, ileum, jejunum, cecum, vermiform, appendix,
ascending colon, transverse colon, pancreas

34
Q

Least splanchnic nerve is sympathetic to what?

A

kidneys, suprarenal glands

35
Q

What does the inferior mesenteric ganglia innervate sympathetically?

A

descending and sigmoid colon

36
Q

What does the super hypogastric plexus sympathetically innervate?

A

uterine tubes in females

Anatomy Exam 3 (10 decks)

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