1. MUSCLES OF THE TORSO Upload “8.21 Muscles of the Torso Worksheet”
to eBackpack

2. Anatomy B-Day 4/14/17 Bellringer
What is the unit of a muscle cell called?
How do actin and myosin bind together?
Agenda
Bellringer
Torso Muscle Notes
Torso Muscle Coloring

3. Anatomy B-Day 4/14/17 Bellringer
What is the unit of a muscle cell called?
Sarcomere
How do actin and myosin bind together?
Influx of Calcium ions bind to troponin, cause tropomyosin to shift and expose binding site for actin
Agenda
Bellringer
Torso Muscle Notes
Torso Muscle Coloring

4. Muscles of the torso The functions of the torso muscles include:
support/posture
provide attachment points for the limbs
aid in breathing
protection of internal organs

5. Key to colors
Blue: Muscles that move the head Green: Muscles that move the pectoral girdle Red: Muscles of the abdominal wall Purple: Muscles that move the arm Black: Connective tissue

6. Anterior torso muscles

7. Is the Pectoralis major superficial or deep
Is the Pectoralis major superficial or deep? Superficial How did the External oblique get its name? Near the surface, Fibers are on an angle to the midline What 2 bones serve as the origin of the sternocleidomastoid? Sternum and clavicle

8. Posterior torso muscles
*Rotator cuff muscles
(subscapularis not pictured)

9. What would be the muscle action of the levator scapulae
What would be the muscle action of the levator scapulae? Elevation of scapula What does dorsi of Latissimus dorsi refer to? Back side Which is smaller the Teres major or the Teres minor? Teres minor How was the rhomboid muscle named? For its diamond shape

10. How can you remember the supraspinatus is above the infraspinatus
How can you remember the supraspinatus is above the infraspinatus? Supra=superior, Infra =inferior Is the trapezius superficial or deep? superficial

11. Click on the picture to watch a video that reviews important muscles of the torso.

12. Find the torso muscles on your body.
Word Bank: Deltoid, External oblique, Pectoralis major,
Recutus abdominis, Serratus anterior, Sternocleidomastoid, Trapezius

13. Word Bank: Deltoid, External oblique, Latissimus dorsi, Infraspinatus, Teres major, Trapezius

14. Don’t forget the study aids
Get Body Smart Inner Body Muscles Reviews found on the web-site.

15. Coloring- Anterior Torso
Key
Blue- move the head
Green- move pectoral girdle
Purple move arm
Red-muscles of the abdominal wall
A Sternoceidomastoid
B Trapezius
C Deltoid
D Pectoralis major
E Pectoralis minor
F Serratus anterior
G External oblique
H Rectus abdominis
I Tranversus abdominis
J Internal oblique

16. Coloring- Posterior Torso
A Sternocleidomastoid
B Trapezius
C Deltoid
D Supraspinatus
E Infraspinatus
F Teres minor
G Teres major
H Rhomboid major
I Rhomboid minor
J Levator scapulae
K Latissimus dorsi
L External oblique
M Serratus anterior