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Gross Anatomy > Thorax/abdomen > Flashcards

Thorax/abdomen Flashcards

1
Q

Origin of external intercostal

Insertion of external intercostal

A

Inferior margin of 1st 11 ribs

Superior margin of rib

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2
Q

What is action of external intercostal? What is its nerve aupply?

A

Elevates ribs during inspiration

Intercostal nerves

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3
Q

Blood supply for external intercostal? Rib 1-2/ rib 3-12

A

Supreme intercostal and superior thoracic arteries

Anterior intercostal/posterior intercostal and subcostsl arteries

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4
Q

Origin of internal intercostal?

Insertion

A

Inferior of 1st 11 ribs

Superior margin of ribs below

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5
Q

Action of internal intercostal? Nerve supply?

A

Elevate ribs during inspiration

Intercostal

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6
Q

Blood supply for internal intercostal?

A

Same as external intercostal

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7
Q

Origin of subcostal? Insertion?

A

Posteriorly on internal aspect of lower 6 ribs

Internal aspect of 2nd or 3rd rib above

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8
Q

Action of subcostal? Nerve supply? Blood supply?

A

Elevate lower ribs
Intercostal
Posterior intercostal arteries

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9
Q

Origin of transversus thoracics?

A

Internal aspect of sternum and adjacent costal cartilage of ribs 3-6

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10
Q

Insertion of transversus thoracic? Action?

A

Internal aspects of costal cartilage of ribs 2-6

Depress upper ribs

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11
Q

Nerve supply for transversus thoracic? Blood supply?

A

Intercostal

Anterior intercostal

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12
Q

Origin of diaphragm?

A

Xiphoid process of sternum
Lower 6 cartilages
First 3 lumbar vertebrae
Medial and lateral arcuate ligaments

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13
Q

Insertion of diaphragm?

A

Central tendon of the diaphragm

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14
Q

Action of diaphragm?

A

Depress central tendon to invrease vertixal dimension of thorax during inspiration

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15
Q

Nerve supply? Blood supply of diaphragm

A

Phrenic nerve
Superior phrenic
Inferior phrenic

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16
Q

Origin of rectus admbdominus?

A

Pubic symphysis and crest

17
Q

Insertion of rectus abdominus

A

Costal cartilage of ribs 5 6 7

Xiphoid process

18
Q

Action of abs? Nerve supply? Blood?

A

Flexes trunk
Compress abdomen
Intercostal nerves t7-12
Superior and anferior epigastricnarteries

19
Q

Origin of external ab? Nerve supply?

A

Lower 8 ribs
Intercostal nerves t7-12
Iliohypogastric and ilioguinal nerves

20
Q

Insertion of external abd oblique?

A

Abdominal aponeurosis to linea alba
Pubis
Anterior iliac crest

21
Q

Action of external abd?

A

Bilateral- flex trunks and compress abd

Unilateral: lateral trunk flexion and contralateral rotatiob

22
Q

Blood supply for external abd?

A

Lower posterior intercostal, subcostal an deep circumflex iliac arteries

23
Q

Origin of Internal abd?

A

Inguinal ligament
Iliac crest
Throralumbar aponeurosis

24
Q

Insertion

A

Costal cartilage of lower 4 ribs

Abdominal aponeurosis to linea alba

25
Q

Actions of internal? Blood supply

A

Same ad external abd oblique

Lower posterior intercostal subcostal and deep circumflex iliac arteries

26
Q

Origin of transversus abd

A

Inguinal ligament
Iliac crest
Thoracolumbar aponeurorsis
Cost cartilage of ribs 7-12

27
Q

Insertion of transversus abd?

A

Abd aponeurosis to linear alba

Pubis

28
Q

Action of transversus abd? Nerve supply

A

Compress abdomb
Intercostal nerves 7-12
Ilihypogastric and ilioguinal nerves

29
Q

What is blood supply for trans abd?

A

Lower posterior costal, subcostal and deep circumflex

30
Q

Origin of quadratus lumborum?ninsertion?

A

Iliac crest

12th rib transverse process 11-4

31
Q

Action of quadratus lumborum? Nerve supply? Blood supply

A

Normal: lateral flexion of trunk
Reverse: elecste hip
Ventral ramin t12-14
Subcostal and lumbar arteries

32
Q

Iliacus origin? Insertion?

A

Iliac fossa

Lesser trochanter of femur

33
Q

Action of iliacus?

A

Normal: flexion of hip
Reverse: flexion of lumbar spine

34
Q

Nerve supply/ blood supply for iliac?

A

Fermor nerve

Subcostal and lumbar arteries

35
Q

Psoas major orijn?

A

T12-5 vertebrae and disk

L1-5 transverse process

36
Q

Insertion for psoas major? Action

For psoas major

A

Lesser trochanter of femur
Normal; flex hip
Reverse: flexion of lumbar spjne

37
Q

Nerve supply? Bloo supply for psoas major?

A

L2,l3

Subcostal and lumbar arteries

38
Q

Psoas minor origin?

Insertion? Action?

A

T12
Pelvix rim
Flexion of lumbar spjne

39
Q

Nerve supply for psoas minor? Blood supply?

A

L1

Subcostal and lumbar

Gross Anatomy (28 decks)

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