Alondra Morales; Period 2 Anatomy
Types of muscles
Skeletal
protect organs
bone movement
Posture
produce blood cells
Skeletal muscles
Smooth
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vaso constriction
cardic
keep the heart pumping
oxygen and nutrients
peristalsis
movement of viscera,
Deltoid; is the shape of a triangle
Pectoralis: large, and is located in the chest
Extensor digitorum; extends digits
Biceps branching; 2 orgins,head its also found in the arm
sternocleidomastoid; is attached in the sternum clavicle and also the mastoid process
External; is located outside of the body and the fibers that run at a slant
Sarcomeres
Myofibrils is made of sarcomeres
(I bands) are the light bands, they are made up of filaments, achored Z lines
(A bands) are the dark bands they overlap thick and think filaments
H zone: the center and has mysoin
M line; in the center on the H zone and it holds myosin filaments