Body Systems OCR Camb Tech Y12

What is dorsiflexion?

• Moving toes towards the tibia

• Bending the spine

• Rotating the shoulder

• Turning the palm upwards

What is the contraction time for Type IIb muscle fibers?

• Slow

• Fast

• Very Fast

• Intermediate

What is the function of the epiglottis?

• Protects the trachea during swallowing

• Produces sound

• Filters air

• Moistens air

What is the function of the vena cava?

• Transports oxygenated blood to the body

• Transports deoxygenated blood from the tissues to the right atrium

• Transports oxygenated blood from the lungs to the left atrium

• Transports deoxygenated blood from the right ventricle to the lungs

What is the function of the larynx?

• Produces sound

• Filters air

• Moistens air

• Protects the trachea

What happens to the number and diameter of capillaries surrounding the alveoli in the long term due to exercise?

• They increase

• They decrease

• They remain the same

• They disappear

During exercise, what is the range of tidal volume (TV)?

• 3-4 liters

• 1-2 liters

• 5-6 liters

• 2-3 liters

What is the average frequency (f) of breaths taken per minute at rest?

• 12-15 bpm

• 20-25 bpm

• 5-10 bpm

• 30-35 bpm

During exercise, what is the range of minute ventilation (VE)?

• 12-40 litres/min

• 5-10 litres/min

• 20-30 litres/min

• 8-15 litres/min

What is the primary function of the diaphragm during respiration?

• To moisten air

• To produce sound

• To filter air

• To contract and create a vacuum for air intake