Gastrocnemius

 This information has been displayed with the kind permission of  SportsInjuryClinic and Get Body Smart who can be found at the links below:

Gastrocnemius    Gastrocnemius Gastrocnemius

Origin:

  • Medial Head: Medial condyle of femur and area just superior to the condyle.
  • Lateral head: lateral condyle of femur and are superior to the condyle.

Insertion:  Posterior calcaneus via calcaneal tendon.

Actions: Flexes the leg at the knee; Plantar flexes the foot.

Innervation: Tibial nerve S1, S2.

Daily uses: Standing on tip toes.

 

Muscles

Other muscles…

Infraspinatus

Origin: Posterior surface of the scapula (below the spine of the scapula)
.

Insertion: Greater tuberosity on the humerus
.

Actions: Shoulder abduction, 
External rotation.

Innervation: Suprascapular nerve
.

Daily uses: Brushing hair.

Teres Minor

Origin: Mid section of the lateral border of the scapula

Insertion: Greater tuberosity on the humerus

Actions:External rotation, 
Shoulder adduction

Innervation: Axillary nerve

Daily uses: Brushing hair

Supraspinatus

Origin: Supraspinous fossa

Insertion: Greater tuberosity of the humerus

Actions: Abduction 
Stabilisation of the humerus

Innervation: Suprascapular nerve

Daily uses: Holding shopping bags away from the body


More Anatomy

Back to muscles

Ligaments

Check out strengthening exercises for the rotator cuff

 

 

This information has been displayed with the kind permission of  SportsInjuryClinic and Get Body Smart who can be found at the links below:

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