Muscles of Anterolateral Abdominal Wall Flashcards

0
Q

Insertion of external oblique

A

Linea alba, pubic tubercle, and anterior half of iliac crest

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1
Q

Origin of external oblique

A

External surfaces of 5th-12th ribs

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2
Q

Innervation of external oblique

A

Thoraco-abdominal nerves (anterior rami of T7-T11) and subcostal nerve

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3
Q

Action of external oblique

A

Compress and support abdominal viscera

Flex and rotate trunk

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4
Q

Origin of internal oblique

A

Throracolumbar fascia, anterior two thirds of iliac crest, and connective tissue deep to inguinal ligament

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5
Q

Insertion of internal oblique

A

Inferior borders of 10th-12th ribs
Linea alba
Pubis via conjoint aponeurosis

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6
Q

Innervation of internal oblique

A

Thoraco-acromial nerves (anterior rami of T7-T11)

Subcostal and first lumbar nerve

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7
Q

Action of internal oblique

A

Compress and support abdominal viscera

Flex and rotate trunk

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8
Q

Origin of transversus abdominis

A

Internal surfaces of 7th-12th costal cartilages
Thoracolumbar fascia
Iliac crest
Connective tissue deep to inguinal ligament

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9
Q

Insertion of transversus abdominis

A

Linea alba with aponeurosis of internal oblique
Pubic crest
Pubis via conjoint tendon

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10
Q

Innervation of transversus abdominis

A

Throaco-abdominal nerves (anterior rami of T7-T11)

Subcostal and first lumbar nerve

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11
Q

Action of transversus abdominis

A

Compresses and supports abdominal viscera

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12
Q

Origin of rectus abdominis

A

Pubic symphysis and pubic crest

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13
Q

Insertion of rectus abdominis

A

Xiphoid process and 5th-7th costal cartilages

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14
Q

Innervation of rectus abdominis

A

Thoraco-abdominal and subcostal nerves (anterior rami of T7-T12 spinal nerves)

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15
Q

Action of rectus abdominis

A

Flexes trunk and compresses abdominal viscera

Stabilizes and controls tilt of pelvis