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Anatomy > EXAM 3 STARTS: Posterior Abdominal Wall > Flashcards

EXAM 3 STARTS: Posterior Abdominal Wall Flashcards

1
Q

is there a physical barrier between the abdominal and pelvic cavities

A

no

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2
Q

whats the ceiling of the posterior abdominal wall

A

the diaphragm

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3
Q

what portion of the vertebral column is the posterior abdominal wall

A

T12-L5

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4
Q

where does the diaphragm stop

A

T12

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5
Q

what does psoas major do

A

produces motion of lower limbs

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6
Q

what does the quadratum lumborum do

A

trunk stability, doesnt more lower limb

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7
Q

what do psoas major and quadratum lumborum attach to

A

lumbar vertebrae transverse processes

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8
Q

what does the iliacus do

A

produces motion of lower limbs

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9
Q

what is the innervations of the quadratus lumborum

A

ventral rami of T12-L4

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10
Q

what is the innervation of the psoas major and minor

A

ventral rami of L1-3

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11
Q

what is the innervation of the iliacus

A

femoral nerve

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12
Q

where does psoas major attach in relation to the quadratus lumborum

A

anterior to QL

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13
Q

what innervates the thoracolumbar fascia

A

dorsal ramus

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14
Q

what type of muscles are QL and PMm

A

abdominal muscles

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15
Q

what are the arcuate ligaments

A

thickened edges of the diaphragm
-lateral arcuate ligament, medial arcuate ligament, median arcuate ligament

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16
Q

what is the lumbar plexus

A

a set of nerves made of the ventral rami of the T12 through L5 spinal nerves

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17
Q

what type of axons are in the lumbar plexus

A

somatic motor, somatic sensory, and sympathetics to visceral body wall structures

18
Q

where do lumbar plexus nerves carry axons from

A

more than one spinal cord level

19
Q

why is the lumbar plexus necessary

A

the large muscles of the limbs need to be more complex than the simple strips of muscles derived from single myotomes. they are derived from multiple myotomes so they require innervation from the corresponding multiple spinal nerves. it is more efficient to combine axons supplying large muscles into large nerves

20
Q

are the patterns of somatic sensory supply to the skin of the limbs the same when comparing dermatomes to nerves

A

no

21
Q

where are the nerves of the skin of limbs from

A

axons that supply dermatomes associated with multiple spinal cord levels

22
Q

what vertebrae is the subcostal nerve supplied by

A

T12

23
Q

what supplies the subcostal nerve and what axons

A

ventral rami, somatic motor, somatic sensory, sympathetic

24
Q

what vertebrae is the iliohypogastric nerve supplied by

A

L1

25
Q

what supplies the iliohypogastric nerve and what axons

A

ventral rami, somatic motor, somatic sensory, and sympathetic

26
Q

what vertebrae is the ilioinguinal nerve supplied by

A

L1

27
Q

what supplies the ilioinguinal nerve and what axons

A

anteriod abdominal wall, somatic motor, somatic sensory and sympathetic

28
Q

what vertebrae is the genitofemoral nerve supplied by

A

L1-2

29
Q

where is sensory innervation in genitofemoral nerve found

A

only in females

30
Q

what vertebrae is the lateral femoral cutaneous nerve supplied by

A

L2-3

31
Q

what type of innervation innervates the lateral femoral cutaneous nerve

A

sensory only

32
Q

what vertebrae is the femoral nerve supplied by

A

L2-4

33
Q

where is somatic motor innervation located in the femoral nerve

A

front part of thigh

34
Q

where is somatic sensory innervation located in the femoral nerve

A

skin

35
Q

where is sympathetic innervation located in the femoral nervee

A

skin

36
Q

what vertebrae is the obturator nerve located at

A

L2-4

37
Q

what vertebrae is the lumbosacral trunk located at

A

L4-5

38
Q

what does the lumbosacral trunk contribute to

A

sciatic nerve

39
Q

what is miliary tuberculosis of the spine

A

bacterial infection in vertebral bodies, pus in column, looks like millet seed, pinches ventral rami

40
Q

what happens in tuberculosis to the psoas muscle

A

it can become enlarged from pus, result in motor and sensory dysfunction from compression

41
Q

what nerve is involved in the inflammation of the psoas major muscle

A

femoral nerve

Anatomy (27 decks)

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