Serratus Anterior

Serratus Anterior Insertion

Anterior surface of medial border of the scapula

To feel the serratus anterior contract:

Ask your partner to flex his shoulder so his fist is raised toward the ceiling. Ask him to abduct his scapula by reaching toward the ceiling.

When do you use your Serratus Anterior?

Doing a push up. Throwing a punch. Pushing open a swinging door.

Serratus Anterior Origin

External surfaces of upper eight or nine ribs

Most of the serratus anterior is deep to the scapula and which two muscles?

Latissimus Dorsi and Pectoralis Major

The serratus anterior abducts the scapula, making it a direct antagonist to the ___

Rhomboids

Accessing the medial portion of the serratus anterior by curling your fingers around the medial border of the scapula, your fingers will inherently have to work through the bellies of which two muscles?

Rhomboids and Trapezius

ABDUCT the scapula (with the origin fixed)

Serratus Anterior Action

DEPRESS the scapula (with the origin fixed)

Serratus Anterior Action

HOLD the medial border of the scapula against the rib cage (with the origin fixed)

Serratus Anterior Action

May act to ELEVATE the thorax during forced inhalation (with the scapula fixed)

Serratus Anterior Action

UPWARDLY ROTATE the scapula (with the origin fixed)

Serratus Anterior Action

With the origin fixed: *ABduct* the scapula *Upwardly rotate* the scapula *Depress* the scapula *Hold* the medial border of the scapula against the rib cage With the scapula fixed: May act to *elevate* the thorax during forced inhalation

Serratus Anterior Actions

Serratus Anterior Actions

With the origin fixed: *ABduct* the scapula *Upwardly rotate* the scapula *Depress* the scapula *Hold* the medial border of the scapula against the rib cage With the scapula fixed: May act to *elevate* the thorax during forced inhalation