Respiratory system

Small air sacs in the lungs where many capillaries exchange carbon dioxide for oxygen taken into the body.

• Trachea

• Bronchi

• Bronchiole

• Alveoli

Small spaces in the skull thought to regulate the temperature and humidity of the air taken into the body.

• Alveoli

• Tonsils

• Sinuses

• Epiglotis

A flap over the trachea that keeps out food and anything else that could clog the trachea.

• Epiglottis

• Larynx

• Pharynx

• Bronchi

A large muscle that separates the chest cavity from the abdominal cavity and helps with breathing

• Lungs

• Diapraghm

• Pleura

• Tonsils

Which of the following is a function of the trachea:

• Humidifies and moistens the air

• Conducting air between the larynx (in the neck) and the primary bronchi (in the chest)

• Cool the air

• Exchange O2 and CO2 gases

When the diaphragm contracts (is pulled downward), _______ occurs

• Inhalation

• Exhalation

• A hiccup

• The lungs deflate

What happens when we exhale (breathe out)?

• The diaphragm contracts and moves upwards

• The diaphragm relaxes and moves upwards

• The diaphragm relaxes and moves downwards

• The diaphragm contracts and moves downwards

Which of the following describes a correct order of structures in the respiratory passeways

• larynx, pharynx, trachea, bronchiles, bronchi

• pharynx, trachea, larynx, bronchi, bronchioles

• trachea, pharynx, larynx, bronchi, bronchioles

• pharynx, larynx, trachea, bronchi, bronchioles

The volume of air that can be exhaled after normal exhalation is the

• tidal volume.

• residual volume

• inspiratory reserve volume/complementary

• expiratory reserve volume/supplementary

The volume of air in a normal breath is called

• total lung capacity.

• Vital capacity

• Tidal volume

• Residual volume