Respiratory System Quiz - mechanics and volumes.

What is the function of the intercostal muscles?

• raise the ribs and expand the chest cavity

• help with moving the arm sideways

• to move the shoulders up

• to move the shoulder down

What is the thoracic cavity protecting?

• protects the heart and lungs

• protect the spinal cord

• protects the stomach from impact and damage

• protects the digestive intestines

What is pulmonary ventilation?

• is the process of moving air into and out of the lungs per minute

• how many times we breathe in the out per hour

• the amount of air we can breathe in per breath

• is the process of moving air into and out of the lungs per hour

What do the internal intercostal muscle do?

• are responsible for forced exhalation. They depress the ribs and decrease space in the chest cavity.

• are responsible for forced inhalation. They increase the ribs and increase space in the chest cavity.

• are responsible for forced exhalation. They depress the ribs and decrease space in the chest cavity.

• are responsible for forced inhalation, they elevate the ribs and expands the space in the rib cage

What do the external intercostal muscle do?

• are responsible for forced inhalation, they elevate the ribs and expands the space in the rib cage

• are responsible for forced inhalation. They depress the ribs and increase space in the chest cavity.

• are responsible for forced exhalation. They increase the ribs and decrease space in the chest cavity.

• are responsible for forced exhalation. They depress the ribs and decrease space in the chest cavity

When breathing in, what happened to the pressure within the lungs?

• Pressure decreases

• Pressure increases

• Pressure stays the same

What controls breathing rate?

• Medulla oblongata

• Your heart

• SA node

• proprioceptors

What do chemoreceptors do?

• Measure the co2 and lactic acid levels in the blood

• Decrease the breathing rate and the heart rate

• Slows the heart rate

• Releases adrenaline

What are neurons?

• a specialized cell transmitting nerve impulses; a nerve cell.

• muscles that aid breathing in

• a muscles that aid breathing out

• a specialized cell that stops electrical impulses

What is tidal volume?

• is the air volume breathed in during a single inhalation.

• is the air volume breathed in each minute

• is the amount of air that can be forced out of the lungs after maximum inhalation