085 Origin, Insertion, and Action of Serratus Anterior

Leslie Samuel introduces the serratus anterior muscle, explaining its name origin, origin and insertion points, and its actions. The muscle originates from the external surfaces of ribs 1-8 or 9 and inserts on the anterior surface of the medial border of the scapula. Its actions include stabilizing the scapula, protracting it, and assisting in upward rotation. The video concludes with a review and directs viewers to additional resources on Interactive-Biology.com.

Explain the significance of the serrated appearance of the serratus anterior muscle.

What is the origin of the serratus anterior muscle?

Describe the insertion point of the serratus anterior muscle.

How does the serratus anterior muscle contribute to scapula movement?

What are the primary actions of the serratus anterior muscle?