2. chest abdomen
DESCRIPTION
TRANSCRIPT
![Page 1: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/1.jpg)
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
![Page 2: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/2.jpg)
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
![Page 3: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/3.jpg)
Figure 8.18; page 183Chart 8.6; page 183
Pulls the scapula anteriorly and downward
3
Serratus anterior
![Page 4: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/4.jpg)
Figure 8.18; page 183Chart 8.6; page 183
Pulls the scapula forward and downward or raises the ribs
4
Pectoralis minor
![Page 5: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/5.jpg)
Figure 8.18; page 183Chart 8.7; page 184
Pulls the arm forward and across the chest, rotates the humerus, or adducts the arm
5
Pectoralis major
![Page 6: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/6.jpg)
Figure 8.18; page 183Chart 8.7; page 184
Abducts the upper arm, extends the humerus, or flexes the humerus
Deltoid
6
![Page 7: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/7.jpg)
Abdominal Muscles
Figure 8.18; page 183Chart 8.10; page 187
![Page 8: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/8.jpg)
Figure 8.18; page 183Chart 8.10; page 187
Tenses the abdominal wall and compresses the abdominal contents
7
External oblique
![Page 9: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/9.jpg)
External oblique (another view)
***Note how the external oblique is the most “external” or outward lying of the three cutaways***
Tenses the abdominal wall and compresses the abdominal contents
![Page 10: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/10.jpg)
Figure 8.18; page 183Chart 8.10; page 187
Tenses the abdominal wall and compresses the abdominal contents
8
Internal oblique
![Page 11: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/11.jpg)
Internal oblique (another view)
***Note how the internal oblique lies inside or “internal” to the “external” oblique
Tenses the abdominal wall and compresses the abdominal contents
![Page 12: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/12.jpg)
Figure 8.18; page 183Chart 8.10; page 187
Transversus abdominis
Tenses the abdominal wall and compresses the abdominal contents
9
![Page 13: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/13.jpg)
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
![Page 14: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/14.jpg)
Figure 8.18; page 183Chart 8.10; page 187
Tenses the abdominal wall and compresses the abdominal contents, also flexes the vertebral column
10
Rectus abdominis
![Page 15: 2. chest abdomen](https://reader033.vdocuments.us/reader033/viewer/2022061212/5495caa0b47959604d8b4e33/html5/thumbnails/15.jpg)
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