Muscular System Quiz

Which type of muscle tissue is controlled by the autonomic nervous system and contracts without conscious control?

• Cardiac muscle

• Skeletal muscle

• Striated muscle

• Smooth muscle

What is the function of cardiac muscle?

• Assisting in maintaining the body’s internal environment

• Pumping oxygenated blood around the body

• Facilitating movement through the digestive tract

• Regulating blood flow in the blood vessels

Which characteristic of muscle tissue refers to its ability to respond to stimuli or impulses?

• Contractibility

• Excitability

• Extensibility

• Elasticity

What is the main function of skeletal muscle?

• Regulating blood flow in the blood vessels

• Contracting to produce movement

• Assisting in maintaining the body’s internal environment

• Pumping oxygenated blood around the body

Which muscle is the prime mover during a bicep curl?

• Triceps brachii

• Biceps brachii

• Deltoid

• Brachioradialis

What is the structural feature of slow twitch (type 1) muscle fibres?

• Small myoglobin content

• Large diameter

• Red in colour

• Fewer mitochondria

What is the functional feature of fast twitch (type 11a) muscle fibres?

• Aerobic with small resource of aerobic energy

• Faster but short-term contractions

• Increased delivery of oxygen

• Produce less force compared to slow twitch

What is the structural feature of fast twitch (type 11B) muscle fibres?

• Large diameter

• White (pale) in colour

• Very low myoglobin content

• Fewer mitochondria

What is the functional feature of fast twitch (type 11B) muscle fibres?

• Very low delivery of oxygen

• Produces explosive force in short bursts

• Faster but short-term contractions

• Anaerobic

What is the main function of the pelvic floor muscles?

• Assisting in maintaining the body’s internal environment

• Pumping oxygenated blood around the body

• Generating heat through shivering

• Stability for the pelvic girdle