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About how many percent of the inhaled oxygen gas goes to the brain?
20%
Which of the following does not belong to the group? Pharynx, Nostrils, Larynx, Bronchus
Bronchus
Which part of the pharynx is connected to the mouth?
Oropharynx
It is also known as the voice box. It also contains vocal cords that produce sounds.
Larynx
It is the main passageway to the lungs which is lined with cilia and mucus to trap dust particles and pathogens.
Trachea
Where does the actual gas exchange occur?
Alveoli
What happens to the air pressure inside the lungs when you exhale?
the air pressure increases
It is known as the overall exchange of gases between the atmosphere, the blood and the cells.
Respiration
It is the physical action of taking air in and out of the lungs.
Breathing
Where can you find the breathing center of the brain?
Medulla Oblongata
What happens to the diaphragm during inhalation?
It contacts or moves down
Which phase of the respiration contains the gas exchange in the bloodstream through diffusion?
External Respiration
It is the network of tiny blood vessels lining up the alveoli.
Capillaries
What process of passive transport occurs during gas exchange?
Diffusion
Which phase of respiration breaks down sugar to produce ATP?
Cellular Respiration
What gas exchange system in animals is characterized by a system of air-filled tubes?
Tracheal systems
