Muscle Review

Found attached to bones throughout the body

• smooth

• cardiac

• skeletal

• all

Found in the heart

• smooth

• cardiac

• skeletal

• all

Found in the walls of hollow organs; also called visceral

• smooth

• cardiac

• skeletal

• all

What are the 3 types of muscles?

• Skeletal, muscular, ligament
• Skeletal, smooth, cardiac
• Smooth, Cellular, Cerebrum
• Cardiac, smooth, brain stem

Smooth muscle and cardiac muscle are considered _____ muscles because we can’t control them consciously.

• Immovable
• Involuntary
• Skeletal
• none of the above

Skeletal muscles always work _____.

• in groups
• in pairs
• singly
• none of the above

What is the length between Z-lines of an actin molecule called?

• fascicle

• sarcomere

• myosin binding site

• sarcoplasmic length

Name the following in order from largest to smallest:

• muscle, muscle fascicle, muscle cell, myofibril, filaments

• muscle, muscle fascicle, muscle cell, filaments, myofibril

• muscle, muscle cell, muscle fascicle, myofibril, filaments

• muscle, muscle cell, muscle fascicle, filaments, myofibril

Choose which muscle naming rules are used for (check all that apply):

Pectoralis major

• Location of muscle

• Direction of the muscle fibers

• Relative size of the muscle

• Number of origins

• Location of the muscle's origin and insertion

Which molecules bind to the actin molecule in a way that prevents a myosin head from forming a cross bridge?

• Myosin

• Actin

• Troponin-Tropomyosin