Types of muscles & fibres

What type of muscle tissue is found in the heart?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Voluntary muscle

What is the primary function of the cardiac muscle?

• To aid in digestion

• To pump blood around the body

• To support the skeletal system

• To filter toxins

Which of the following is NOT a function of cardiac muscle?

• Pumping blood

• Contracting rhythmically

• Digesting food

• Maintaining heart rhythm

What is a characteristic of voluntary muscles?

• Non-striated

• Involuntary

• Striated

• Found in internal organs

Which connective tissue layer is most closely associated with the muscle fibers themselves?

• Epimysium

• Perimysium

• Endomysium

• Sarcolemma

What does the epimysium form that attaches to the skeleton?

• Ligaments

• Tendons

• Cartilage

• Joints

What connects muscle to bone?

• Tendon

• Epimysium

• Perimysium

• Endomysium

Which connective tissue layer is involved in forming a fascicle?

• Epimysium

• Perimysium

• Endomysium

• Myofibril

What is the fatigue rate of Type I muscle fibers?

• Rapidly fatigues

• Fatigues much faster

• Fatigue at a slow rate

• Does not fatigue

Which muscle fibre type is used for a final sprint in a race?

• Type I

• Type IIa

• Type IIx

• Type III