ABDOMINAL MUSCLES

EXTERNAL OBLIQUE MUSCLE

PROXI: External surfaces of the lower 8 ribs (ribs 5–12).

DISTAL: lateral lip of iliac crest and linea alba via aponeurosis

INTERNAL OBLIQUE

PROXI: tharacolumbar Fascia

DISTAL: lower 10th-12th ribs, linea alba

TRANSVERSUS ABDOMINUS

PROXI: thoracolumbar fascia, lower 7th to 12th ribs (lower 6 ribs)

DISTAL: linea alba via aponeurosis and pubic crest

RECTUS ABDOMINIS

PROXI: Pubic crest and pubic symphysis.

DISTAL: Costal cartlidge’s of ribs 5th to 7th xiphoid process

PYRAMIDALIS

PROXI: Front of pubis and pubic symphysis

DISTAL: Into linea alba

RECTUS SHEATH

Composed of external oblique internal oblique and transversus abdominis muscles it is a proctective covering formed by the aponeurosis of abdominal muscles

INGUINAL CANAL

The inguinal canal is a passage in the lower anterior abdominal wall. It plays an essential role in transmitting structures like the spermatic cord (in males) and the round ligament of the uterus (in females), fromed by the external oblique internal oblique transversalis fascia inguinal ligament.

INNERVATION

ANTERIOR RAMI OF LOWER 6 THORACIC SPINAL NERVE