Muscles of Thorax & Abdominal Wall Flashcards
1
Q
External intercostals (inspiration)
A
O: rib
2
Q
Internal intercostals (forced expiration)
A
O: rib
3
Q
Diaphragm (PM of inspiration)
A
O: rib cage, sternum, and costal cartilages
I: central tendon
4
Q
Rectus abdominus
A
O: pubic crest
I: xiphoid process and ribs
5
Q
External oblique (its aponeurosis forms the inguinal ligament)
A
O: ribs
I: linea alba and iliac crest
6
Q
Internal oblique
A
O: lumbar fascia and iliac crest
I: linea alba, pubic crest, and ribs
7
Q
Transversus abdominis
A
O: lumbar fascia
I: linea alba and pubic crest
