The Scalene Muscles – Attachments – Action – Innervation

The Scalene Muscles – Attachments – Action – Innervation

Describe the Scalenus Medius Muscle in brief.
Answer.

Scalene Muscles is the longest and largest scalene muscle.

Scalenus Medius Muscle  Origin

From the posterior tubercles of transverse processes of C2 to C6 vertebrae.

Scalenus Medius Muscle  Insertion

On the superior surface of 1st rib behind the groove for subclavian artery and in front of tubercle of 1st rib.

Scalenus Medius Muscle  Nerve supply

Ventral rami of C3 to C8 spinal nerves.

Scalenus Medius Muscle  Actions

Same as scalenus anterior.