Posterior Abdominal Wall Musculature and Lymphatics Flashcards

1
Q

What is the action of the Psoas major and what is it innerveated by?

A

action: flexes thigh at hip, with feet fixed it flexes trunk on thigh; acting unilaterally side-bends trunk to same side
innervation: L2, L3, L4 via lumbar plexus

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2
Q

What is the action of the psoas minor and what is it innervated by?

A

aciton: assists in extension and flexion of trunk; acting unilaterally side-bends trunk to same side
innervation: L1, (L2)

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3
Q

What is the action of the Quadratus lumborm and what is it innervated by?

A

action: extends and laterally flexes vertebral column; fixes rib 12 during inspiration
innervation: T12-L4

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4
Q

Iliacus - action and innervation

A

action: flexes thigh at hip; with lower limb fixed, flexes pelvis on thigh
innervation: femoral n. (L2, L3, and L4)

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5
Q

How far does the superior surface of the diaphragm reach?

A

5th rib

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6
Q

What are the boundaries of the diaphragm?

A

xiphisternal joint, costal margin, body of TV12

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7
Q

What are the three peripheral origins of the diaphragm?

A

sternal, costal, and lumbar

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8
Q

Comparing the left and right crus, which one is short and which one is long?

A

right crus: long

left crus: short

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9
Q

Where is the median arcuate ligament?

A

over aorta

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10
Q

Where are the medial arcuate ligaments?

A

over psoas major

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11
Q

Where are the lateral arcuate ligaments?

A

over quadratus lumborum

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12
Q

The aortic hiatus is at what vertebra?

A

T12

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13
Q

The esophageal hiatus is at what vertebra?

A

T10

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14
Q

The vena cabal foramen is at what vertebra?

A

T8

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15
Q

pericardiacophrenic, musculphrenic, superior phrenic aa. are vessels on what surface of the diaphragm?

A

superior surface

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16
Q

What vessels are on the inferior surface of the diaphragm?

A

inferior phrenic aa. & vv.

17
Q

What is the only motor nerve of the diaphragm?

A

Phrenic n. C3, C4, C5

18
Q

What are the sensory nerves of the diaphragm?

A

phrenic n. (central) , intercostal nn. (peripheral)

19
Q

Does the diaphragm have both parietal and visceral lymphatics?

A

yes

20
Q

Subcostal (T12), Iliohypogastric (T12), Ilioinguinal (L1), lateral cutaneous nerve of thigh (L2, 3), genitofemoral nerve (L1,2) and femoral nerve (L2-4) are all nerves in what area?

A

posterior abdominal wall

21
Q

At what vertebra does the aortic bifurcation occur at?

A

L4

22
Q

What are the arteries of the urogenital system from the abdominal aorta?

A

suprarenal superior middle, right renal, left renal, left gonadal

23
Q

inferior phrenic, lumbar, and subcostal arteries are from the abdominal aorta and are part of what area?

A

abdominal wall/diaphragm

24
Q

The celiac a., superior mesenteric a., and inferior mesenteric a. are arteries from the abdominal aorta that supply what?

A

gut

25
Q

What two pathways does sympathetic innervation of gut involve?

A

splanchnic and suprarenal

26
Q

What are the components of the renal system?

A

kidneys, suprarenal glands, urinary bladder, urethra

27
Q

List the path that urine travels after secretion

A

urine runs from renal papillae to minor calyses, to major calyses to the renal pelvis and finally the ureter