Cardirespiratory

What happens to the diaphragm muscle during inspiration?

• It relaxes and rises

• It contracts and flattens

• It contracts and bulges upwards

• It remains unchanged

During inspiration, how does the size of the chest cavity change?

• It decreases

• It remains the same

• It increases

• It fluctuates rapidly

What is the primary function of the respiratory system?

• To digest food

• To circulate blood

• To transfer oxygen into the blood

• To filter waste from the kidneys

How does air typically move during inspiration?

• From lower pressure areas to higher pressure areas

• From higher pressure areas to lower pressure areas

• In a circular motion within the lungs

• It does not move

Which of the following is NOT a function of the respiratory system?

• To create speech

• To remove carbon-dioxide from the blood

• To return air back to the environment

• To filter blood

What happens to the diaphragm muscle during expiration?

• It contracts and moves upward

• It relaxes and forms a dome shape

• It expands and flattens

• It remains unchanged

During expiration, how does the size of the chest cavity change?

• It increases

• It decreases

• It remains the same

• It fluctuates rapidly

What is the relationship between air pressure in the lungs and the external environment during expiration?

• Pressure in the lungs is lower than the external environment

• Pressure in the lungs is higher than the external environment

• Pressure in the lungs is equal to the external environment

• Pressure in the lungs is unrelated to the external environment

Where does the transfer of gases primarily take place in the lungs?

• Trachea

• Bronchi

• Alveoli

• Pharynx

What is the maximum amount of air that can be breathed out after a maximum inspiration called?

• Tidal Volume

• Inspiratory Reserve Volume

• Vital Capacity

• Residual Volume