Muscular System

Skeletal muscles always work _____.

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

What are the 3 types of muscles?

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

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

• Tendon
• Ligament
• Cartilage

What two chemicals are necessary for muscle contraction to occur?

• Niacin and Potassium
• Calcium and ATP
• Sodium and Potassium
• Ach and Potassium

The plasma membrane of a skeletal muscle cell is called the:

• sarcomere
• myofilament
• sarcolemma
• sarcoplasm

Skeletal Muscle contraction is initiated when the ________ sends a message to the muscle cell.  

• Muscle cell
• Neuron
• Gland
• None of the above

A bundle of fascicles

• Muscle

• Epimysium

• Tendon

• Sarcolemma

attaches muscles to bones

• Muscles

• Tendons

• Joints

• Sarcolemma

Layer of connective tissue that covers each fascicle

• Perimysium

• Muscle Fiber

• Sarcoplasm

• Myofibril

Threadlike structures that make up a muscle fiber

• Muscle Fiber

• Tendon

• Myofibril

• Epimysium