Muscle Physiology Review

The two types of involuntary muscles are

• smooth and skeletal

• cardiac and skeletal

• smooth and cardiac

• There is only one group of involuntary muscles.

Which type of muscle is striated?

• Cardiac only

• Cardiac and smooth

• Smooth and skeletal

• skeletal and cardiac

What is a tendon?

• Attaches bones together

• Attaches muscle to bone

• Attaches muscle to muscle

• Muscle tissue

What are the three types of muscle?

• Smooth, Hard, Cardiac

• Cardiac, Smooth, Skeletal

• Skeleton, Heart, Bladder

Which thin filament protein bind to Ca during muscle contraction?

• Actin

• Myosin

• Troponin

• Tropomyosin

Click all that apply. Which of these make up a motor unit?

• Motor neuron

• Motor fiber

• Muscle

• Nerve

What is the name of the plasma membrane surrounding each muscle fiber?

• T Tubule

• Sarcolemma

• Sarcoplasm

• Nucleus

What is the contractile unit of the muscle?

• Z disk

• Sarcomere

• Muscle fiber

• Muscle cell

What protein makes up the thick filaments?

• Troponin

• Tropomyosin

• Myosin

• Actin

What part of the muscle fiber stores Ca ions and releases them when stimulated?

• T tubule

• Sarcolemma

• Nucleus

• Sarcoplasmic reticulum