Rectus Capitis Lateralis

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Rectis Capitis Lateralis mm

Rectis Capitis Lateralis: Origin and Insertion

 (Anterior view, jaw removed)


Rectus Capitis Lateralis

Origin: Transverse process os atlas.

Insertion: Jungular process of occipital bone.

Actions: Tilts head to ipsilateral(same) side. Stabilises atlanto-occipital joint.

Innervation: C1-2Ventral rami cervical nerves.

Daily uses: Talking on a phone.


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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

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Ligaments

Check out strengthening exercises for the rotator cuff

 

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