RECTUS ABDOMINIS

ORIGIN

Pubic crest and the pubic symphysis

 

INSERTION

From the fifth to seventh costal cartilages, and the inferomedial costal margin and posterior aspect of the xiphoid process of the sternum

 

ACTION

Flexion of the vertebral column, posteriorly tilts the pelvis, compresses abdominal contents, assists with forces expiration

 

INNERVATION

Ventral Primary rami of (T7 to T12)

 

PRIMARY JOINT

Lumbar spine

 

KEY STRENGTH TRAINING EXERCISES

Sit ups

Plank

 

NEW STRENGTH TRAINING EXERCISES

Leg pull in

Gorilla chin ups

 

COMMON INJURIES

Strain/stiffness

Muscle tear