2. chest abdomen

Figure 8.18; pg. 183Chart 8.5; page 182

Pulls the head to oneSide, pulls the head Toward the chest, or raises the sternum

**Repeat Muscle**

1

Sternocleidomastoid

Figure 8.18; page 183Chart 8.6; page 183

Rotates the scapula and raises the arm; raises the scapula; pulls the scapula medially; pulls the scapula and shoulder downward

2

Trapezius


Pulls the scapula anteriorly and downward

3

Serratus anterior


Pulls the scapula forward and downward or raises the ribs

4

Pectoralis minor


Pulls the arm forward and across the chest, rotates the humerus, or adducts the arm

5

Pectoralis major


Abducts the upper arm, extends the humerus, or flexes the humerus

Deltoid

6

Abdominal Muscles



Tenses the abdominal wall and compresses the abdominal contents

7

External oblique

External oblique (another view)

***Note how the external oblique is the most “external” or outward lying of the three cutaways***




8

Internal oblique

Internal oblique (another view)

***Note how the internal oblique lies inside or “internal” to the “external” oblique



Transversus abdominis


9

Transversus abdominis (another view)

***Note how the transversus abdominis lies most to the inside or internally



Tenses the abdominal wall and compresses the abdominal contents, also flexes the vertebral column

10

Rectus abdominis

Rectus abdominis (another view)

***Note how the rectus abdominis lies most medially of the four abdominals

Tenses the abdominal wall and compresses the abdominal contents, also flexes the vertebral column

2. chest abdomen

Education

Transcript of 2. chest abdomen