UPDATED Muscle Origin, Insertion, Action - Upper Adv

Front

What is the origin of the serratus anterior muscle?

Back

The origin of the serratus anterior muscle is the lateral surfaces of the upper 8 or 9 ribs.

Front

What is the insertion of the serratus anterior muscle?

Back

The insertion of the serratus anterior muscle is the medial border of the scapula.

Front

What is the action of the serratus anterior muscle?

Back

The action of the serratus anterior muscle is to protract and stabilize the scapula.

Front

What is the origin of the pectoralis minor muscle?

Back

The origin of the pectoralis minor muscle is the 3rd to 5th ribs.

Front

What is the insertion of the pectoralis minor muscle?

Back

The insertion of the pectoralis minor muscle is the coracoid process of the scapula.

Front

What is the action of the pectoralis minor muscle?

Back

The action of the pectoralis minor muscle is to stabilize the scapula by drawing it inferiorly and anteriorly against the thoracic wall.

Front

What is the origin of the zygomaticus major muscle?

Back

The origin of the zygomaticus major muscle is the zygomatic bone.

Front

What is the insertion of the zygomaticus major muscle?

Back

The insertion of the zygomaticus major muscle is the corner of the mouth.

Front

What is the action of the zygomaticus major muscle?

Back

The action of the zygomaticus major muscle is to elevate the corner of the mouth, contributing to smiling.

Front

What is the origin of the extensor carpi radialis longus muscle?

Back

The origin of the extensor carpi radialis longus muscle is the lateral supracondylar ridge of the humerus.