Muscular System Review

What is the epimysium?

• A type of muscle fiber

• A connective tissue layer that surrounds the entire muscle

• A type of joint in the body

• A layer of fat surrounding the muscle

Which muscle type is voluntary?

• Skeletal muscle

• Cardiac muscle

• Smooth muscle

• Involuntary muscle

What is the perimysium?

• A type of muscle fiber

• A connective tissue sheath that surrounds fascicles (bundles of muscle fibers)

• A type of joint in the body

• A layer of skin that protects muscles

What are the three types of muscle tissue?

• Skeletal, smooth, and cardiac

• Skeletal, elastic, and fibrous

• Cardiac, smooth, and striated

• Skeletal, smooth, and voluntary

What is hypertrophy in muscles?

• A decrease in muscle size due to inactivity.

• The increase in muscle size due to exercise and increased workload.

• A type of muscle injury caused by overtraining.

• The process of muscle relaxation after exercise.

What is the role of acetylcholine in muscle contraction?

• Acetylcholine is a hormone that regulates blood sugar levels.

• Acetylcholine is a neurotransmitter that transmits signals from nerves to muscles, triggering contraction.

• Acetylcholine is an enzyme that breaks down proteins in muscles.

• Acetylcholine is a vitamin that supports muscle recovery.

What causes botulism?

• A toxin that inhibits acetylcholine, a neurotransmitter essential for muscle contraction.

• A bacterial infection that affects the digestive system.

• A viral infection that targets the respiratory system.

• An allergic reaction to certain foods.

What is lactic acid?

• A type of carbohydrate used for energy

• A byproduct of glucose breakdown during prolonged exercise without adequate rest

• A protein that helps in muscle recovery

• A fat that stores energy in the body

What happens during muscle fatigue?

• Muscle fatigue occurs when muscles can no longer sustain the required level of activity, often due to lactic acid buildup.

• Muscle fatigue is caused by an increase in oxygen supply to the muscles.

• Muscle fatigue results from a lack of hydration and electrolytes in the body.

• Muscle fatigue is a sign of muscle growth and development.

What is the difference between smooth and cardiac muscle?

• Smooth muscle is voluntary and found in the heart, while cardiac muscle is involuntary and found in organs.

• Smooth muscle is involuntary and found in organs, while cardiac muscle is involuntary and found in the heart.

• Smooth muscle is involuntary and found in the heart, while cardiac muscle is voluntary and found in organs.

• Smooth muscle is voluntary and found in organs, while cardiac muscle is involuntary and found in the heart.