Muscles of Anterolateral Abdominal Wall Flashcards Preview

Gross Anatomy > Muscles of Anterolateral Abdominal Wall > Flashcards

Flashcards in Muscles of Anterolateral Abdominal Wall Deck (16):
1

External Oblique Origin

External surfaces of 5th-12th ribs

2

External Oblique Insertion-3

-Linea alba
-Pubic tubercle
-anterior 1/2 of iliac crest

3

External Oblique Innervation-2

-Thoraco-abdominal nerves (Anterior rami of T7-T11)
-Subcostal nerve

4

External Oblique Action-2

-Compress and support abdominal viscera
-Flex & rotate trunk

5

Internal Oblique Origin-3

-Thoracolumbar fascia
-Anterior iliac crest
-Connective tissue deep to inguinal ligament

6

Internal Oblique Insertion-3

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

7

Internal Oblique Innervation-2

-Thoraco-abdominal nerves (Anterior rami of T7-T11)
-1st lumbar nerve (L1)

8

Internal oblique Action-2

-Compress and support abdominal viscera
-Flex & rotate trunk

9

Transversus Abdominis Origin-4

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

10

Transversus Abdominis Insertion-3

-Linea alba w/ aponeurosis of internal oblique
-Pubic crest
-Pectin pubis via conjoint tendon

11

Transversus Abdominis Innervation-2

-Thoraco-abdominal nerves (Anterior rami of T7-T11)
-1st lumbar nerve (L1)

12

Transversus Abdominis Action

Compresses and supports abdominal viscera

13

Rectus abdominis Origin-2

-Pubic symphysis
-Pubic crest

14

Rectus abdominis Insertion-2

-Xiphoid process
-5th-7th costal cartilages

15

Rectus abdominis Innervation

-Thoraco-abdominal nerves (Anterior rami of T7-T11)

16

Rectus abdominis Action

-Flexes trunk (lumbar vertebrae)
-compresses abdominal viscera
-Stabilizes and controls tilt of pelvis (antilordosis)