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Anatomy Test 3 > Posterior Abdominal Wall > Flashcards

Posterior Abdominal Wall Flashcards

1
Q

posterior abdominal wall is formed by which bones

A

Lumbar vertebrae
sacrum
wings of the ileum
ribs

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2
Q

posterior abdominal wall is formed by which muscles

A

Diaphragm
Iliacus
psoas major
Quadratus lumborum

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3
Q

Pelvic girdle is made up of what

A

two os coxae

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4
Q

each os coxae articulates with

A

The other at the pubic synthesis anteriorly,
with the sacrum posteriorly
with the femur inferiorly

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5
Q

Psoas major

A

o- transverse processes bodies intravertebral disc of T12 to L5
i- lesser trochanter with iliacus
n- financial primary rami of L2 to L4
a- flexion of the thigh, lateral flexion and flexion of the trunk

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6
Q

psoas minor

A

o- bodies of vertebra T12 and L2 and the disc in between
i- pubic bone
n- ventral primary ramus L1
a- flexion of the pelvis and vertebral column

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7
Q

illiacus

A

o- iliac fossa
i- lesser trochanter with psoas major
n- femoral nerve
a- flexion of thigh

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8
Q

Quadratus lumborum

A

o- iliac crest iliolumbar ligament, transverse processes of lower lumbar vertebrae
i- rib 12, transverse process of upper lumbar vertebrae
n- subcostal and upper lumbar ventral primary rami
a- flexion of trunk latterly, extend vertebral column, elevate hip, stabilize 12th rib against inspiration

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9
Q

lumbar plexus

A

L 1 2 3 and part of L4

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10
Q

sacral plexus

A

L4 to S4

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11
Q

Illiohypogastric nerve root

A

L1

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12
Q

Ilioinguinal nerve root

A

L1

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13
Q

Genitofemoral nerve Root

A

L1, L2

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14
Q

lateral femoral, cutaneous nerve root

A

L2, L3

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15
Q

femoral nerve root

A

L2, L3, L4

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16
Q

Obturator nerve root

A

L2, L3, L4

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17
Q

Lumbosacral trunk

A

Part of the ventral primary ramus of L4 joins ventral primary ramus of L5 to form the lumbosacral trunk,
which joins S1 to 4 to form the sacral plexus

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18
Q

superior gluteal nerve roots

A

L4, L5, S1

19
Q

inferior gluteal nerve root

A

L5, S1 S2

20
Q

Sciatic nerve root

A

L4, L5, S1 S2 S3

21
Q

pudendal nerve root

A

S2 S3 S4

22
Q

twigs to the piriformis Root

A

S1 S2 S3 S4

23
Q

nerve to obturator internus root

A

L5, S1 S2

24
Q

nerve to quadratus femoris root

A

L4 L5 S1

25
Q

Lumbar plexus nerves

A

Illiohypogastric
Ilioinguinal
Genitofemoral
Lateral femoral cutaneous
femoral
Obturator

26
Q

sacral plexus nerves

A

Superior glueteal
Inferior gluteal
Sciatic
Pudendal
Twigs to the piriformis
Nerve to obturator internus
Nerve to quadratus femoris

27
Q

The abdominal aorta divides at

A

Divides at the level of L4 vertebrae into right, and left common iliac arteries

28
Q

internal iliac supplies

A

Viscera of the pelvic cavity

29
Q

External iliac passes

A

under the inguinal ligament, and enters anterior compartment of the thigh

Changes name to the femoral artery when crossing under the inguinal ligament

30
Q

Inferior epigastric artery

A

Arises from the external iliac artery before it enters the anterior thigh compartment

It supplies the inferior aspect of the anterior abdominal wall

31
Q

inferior vena cava

A

Largest vein in the body

Returns blood from both lower extremities anterior abdominal wall and abdominal pelvic viscera

32
Q

The inferior vena cava arises from

A

about L5 vertebrae from a union of the common iliac veins

Ascends through the vena cava foramen in the diaphragm, and continues to the heart

33
Q

Diaphragm

A

Musculotendinous partition separating the thoracic and abdominal cavities

Major muscle of respiration

34
Q

The diagram is composed of

A

Central tendon- the shape of a boomerang into which the peripheral muscular portion inserts

Peripheral muscular portion

35
Q

peripheral muscular portion of diaphragm

A

Sternal portion
Costal portion
Lumbar portion

36
Q

Sternal portion of peripheral muscular

A

Fibers arising from xiphoid and inserting into the Central Tendon

37
Q

Costal portion of peripheral muscular

A

Arises from the internal surface of the lower six ribs and costal cartilage and lateral and medial arcuate ligaments

38
Q

Lumbar portion of peripheral muscular

A

arises from the lumbar vertebrae into the form of a right Crus and left Crus
right crus arise from LV 1-3 and their intravertebral discs
left crus arise from LV 1-2 and their intervertebral discs

39
Q

openings in the diaphragm

A

Sternocostal hiatus
Foramen for the inferior vena cava
Esophageal hiatus
aortic hiatus

40
Q

Sternocostal hiatus

A

passage of the superior Epigastric vessels, and some lymphatics

41
Q

Foramen for the inferior vena cava

A

Passage for the inferior vena cava, and right phrenic nerve

42
Q

Esophageal hiatus

A

Passage for the esophagus and vagal trunks

43
Q

Aortic hiatus

A

Passage for the aorta and thoracic ducts

44
Q

sympathetic trunk passes

A

Posterior to the medial arcuate ligament

Anatomy Test 3 (13 decks)

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