Muscle Physiology Quiz

What are the two main types of muscle contraction?

• Concentric and eccentric

• Concentric and isometric

• Eccentric and static

• Isometric and static

Where can smooth muscle cells be found?

• Brain and spinal cord

• Heart and lungs

• Blood vessels and intestines

• Joints and tendons

Which type of muscle fibers are slow but have high endurance?

• Type B fibers

• Type 2 fibers

• Type A fibers

• Type 1 fibers

What are the main components of muscle contraction?

• Myosin and troponin

• Tetin and myofibril

• Troponin and tropomyosin

• Actin and myosin

What is the function of troponin and tropomyosin in muscle contraction?

• They link one sarcomere to the next

• They form cross bridges

• They pull actin and shorten the muscle

• They help decide if a muscle can contract

What is the function of the Z band in muscle contraction?

• It links one sarcomere to the next

• It pulls actin and shortens the muscle

• It forms cross bridges

• It helps decide if a muscle can contract

What is the smallest unit that forms a muscle bundle?

• Muscle cell

• Muscle fiber

• Myofibril

• Sarcomere

What is the function of myosin in muscle contraction?

• It helps decide if a muscle can contract

• It forms cross bridges

• It links one sarcomere to the next

• It pulls actin and shortens the muscle

What type of muscle fiber is a combination of both fast and slow muscle fiber?

• Type 1

• Type 2b

• Type 2a

What type of muscle type fires fast, but can't last for long?

• Type 1

• Type 2b

• Type 2a