Thoracic + Anterolateral Abdominal Walls Flashcards

1
Q

External Intercostal- O, I, A, IN

A

O- Inf border of rib above

I- Sup border of rib below

A- Elevate ribs during forced inspiration (accessory inspiration)

IN- Intercostal nerve

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2
Q

Internal Intercostal- O, I, A, IN

A

O- Sup border of rib

I- Inf border of rib above

A- Innerosseus part- depresses rib
- Interchodral part (most med + ant)- elevates ribs

In- Intercostal nerve

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3
Q

Innermost intercostal- O, I, A, IN

A

occupies lateral most part of the intercostal space

O- Sup border of rib below

I- Inf border of rib

A- Depresses ribs during forced expiration

IN- Intercostal nerve

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4
Q

Subcostal- O, I, A, IN

A

O- Sup border of 2nd and 3rd rib below

I- Internal surface of lower ribs near costal angle

A- Depresses ribs during forced exporation

IN- intercostal nerve

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5
Q

Transversus thoracis- O, I, A, IN

A

O- Post surface of lower sternum

I- Internal surface of costal cartilages 6th to 2nd

A- Depresses rib (weak)

IN- Intercostal nerve

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6
Q

Diaphram sternal part O, I

A

O- Post surface of xiphoid process

I- Central tendon

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7
Q

Diaphram costal part O, I

A

O- Internal surface of lower 6 costal cartilages and their adjoining ribs

I- Central tendon

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8
Q

Diaphram lumbar part O, I

A

O- Lat arcuate lig, medial arcuarate lig, R+L crura, median arcurate lig

I- Central Tendon

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9
Q

at what levels does the openings for inf vena cava, esophagus

A

IVD T8- Caval oppening
VB T10- Esophageal hiatus
VB T12- Aortic hiatus

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10
Q

Action and Innervation of diaphram

A

A- Chief inspiratory muscle

IN- Phrenic Nerve (APRS C3,4,5)

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11
Q

External Oblique- O, I, A (bilateral and Unilateral), IN

A

O- ext surfaces of 5th to 12th ribs

I- Linea alba, pubic tubercle, ant 1/2 of iliac crest, flat apponerosis

A-
Bi- flexes trunk, stabalizes and controls tilt of pelvis (antilordorsis)
Uni- combo of flex and rot of trunk so ipsilateral shoulder moves ant

IN- Thoracoabdominal nerves (APR T7-11) and subcostal nerve (t12)

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12
Q

Internal Oblique- O, I, A (bi and Uni), In

A

O- thoracolumbar fascia, ant 2/3 iliac crest, lat 1/3 of inguinal lig

I- Inf border of 10th rib- 12th, linea alba, pectin pubis

A-
Bi- flexes trunk, stabalizes and controls pelvic tilt (antilordosis)
Uni- combo of flex and rot of trunk in such a way that contralateral shoulder moves ant

IN- Thoracoabdominal nerves, subcostal nerve and L1 spinal nerve

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13
Q

Transversus Abdominis

A

O- Internal surfaces of 7-12 costal cartilagesm throacolumbar fascia, iliac crest, lat 1/3 of inguinal lig

I- linea alba, pubic crest, pectin pubis

A- compresses abdominal organs (inreases intraabdominal pressure)

IN- Thoracoabdominial nerve, subcostal nerve

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14
Q

Pyramidialis

A

O- Pubic crest

I- linea alba

A- Tenses linea alba

IN- subcostal nerve

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15
Q

rectus abdominus

A

O- Pubic symphisis, pubic crest

I- Xiphoid process, 5-7 costal cartilages

Thoracoabdominal (t6-11, subcostal)

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