Muscles and Muscle Contraction

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

Skeletal muscles always work _____.

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

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

• Immovable
• Involuntary
• Skeletal
• none of the above

A ______________________ attach bones to each other at joints.

• Ligament
• Bone
• Joint
• Cell

A ______ is a strong connective tissue that attaches muscle to bone.

• Tendon
• Ligament
• Cartilage

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

• fascicle

• sarcomere

• myosin binding site

• sarcoplasmic length

____________ attaches to actin to form the cross bridge.

• Troponin

• Tropomyosin

• Myosin

• Calcium