Respiratory System Quiz BTEC Sport L3

Which muscle contracts and flattens during inspiration?

• Diaphragm

• External intercostals

• Internal intercostals

• Abdominals

What happens to the thoracic pressure during inspiration?

• Increases

• Decreases

• Remains the same

• Fluctuates

Which lung volume is defined as the total air inhaled/exhaled in one breath under resting conditions?

• Vital Capacity

• Residual Volume

• Tidal Volume

• Total Lung Volume

What is the maximum amount of air that can be expired after a maximum inhalation called?

• Tidal Volume

• Vital Capacity

• Residual Volume

• Pulmonary Ventilation

During exercise, which two factors increase to enhance Pulmonary Ventilation (VE)?

• Tidal Volume and Respiratory Rate

• Residual Volume and Vital Capacity

• Total Lung Volume and Tidal Volume

• Respiratory Rate and Residual Volume

What is the role of chemoreceptors in the control of breathing?

• Detect changes in blood CO2 concentration

• Control voluntary breathing

• Detect changes in blood oxygen concentration

• Control the diaphragm

Which part of the brain is involved in the involuntary control of breathing?

• Cerebral Cortex

• Medulla Oblongata

• Cerebellum

• Hypothalamus

What happens to the rib cage during expiration?

• Contracts and lifts

• Relaxes and domes

• Expands and lifts

• Contracts and drops

Which of the following is NOT a response to exercise in the short term?

• Increase in breathing rate

• Increased tidal volume

• Increased vital capacity

• None of the above

What is the function of the alveoli in the respiratory system?