abdomen Flashcards
External oblique INSERTION
linea alba, pubic tubercle, ant. iliac crest
External Oblique INNERVATION
T7-T12
intercostal N
External Oblique ACTION
Unilaterally: ipsilaterally bend trunk, rotates contralaterally
Internal Oblique ORIGIN
thoracolumbar fascia, iliac crest, ant. sup. iliac spine, iliopsoas fascia
Internal Oblique INSERTION
10TH-12TH ribs (lower border)
linea alba
Internal Oblique INNERVATION
Intercostal N (T7-T12) iliohypogastric N & Ilioinguinal N
Internal Oblique ACTION
Unilaterally: ipsilateral bend trunk, rotates contralaterally
bilaterally: flexes trunk, compresses abdomen, stabilizes pelvis
Transversus abdominis ORIGIN
7th-12th costal cartilages thoracolumbar fascia iliac crest ant. sup. iliac spine iliopsoas fascia
Transversus abdominis INSERTION
Linea alba, pubic crest
Transversus abdominis INNERVATION
intercostal N
T7-T12
iliohypogastric N & Ilioinguinal N
Transversus Abdominis ACTION
unilaterally: rot. trunk ipsilaterally
bilaterally: compresses abdomen
Rectus abdominis ORIGIN
Lateral head: crests of pubis to pubic tubercle
medial head: ant. region of pubic symphysis
Rectus abdominis INSERTION
cartilages of ribs 5-7
xiphoid process of sternum
Rectus abdominis Innervation
Intercostal N
T5-T12
Rectus abdominis ACTION
flexes trunk
compresses abdomen
stabilizes pelvis
Diaphragm ORIGIN
costal part
7th-12th ribs (lower surfaces)
Diaphragm (lumbar part) ORIGIN
medial head: L1-L3 vertebral bodies, IV Discs & ant. longitudianl lig.
Diaphragm (sternal part)ORIGIN
XIPHOID PROCESS
DIAPHRAGM INSERTION
Central tendon
Diaphragm Innervation
C3-C5
phrenic N
Diaphragm ACTION
respiration!
External Oblique ORIGIN
5th-12th ribs (outer surface)
Common Insertion of Oblique Muscles
Linea Alba!
Common insertion of Diaphragm ?
Central Tendon
