Internal vs. External
Air Pathways
Inside the Cells
Anatomy
Fun Facts
100

This type of respiration is the physcial process of breathing air in and out of your body.

What is external respiration?

100

This main windpipe connects your throat to your lungs.

What is the trachea?

100
The life sustaining gas that you take into your body when you breathe in.

What is oxygen?

100

This muscle is incharge of facilitating gas exchange.

What are the lungs/

100

This is why you switch what nostril is breathing more.

What is making the load even?

200

This type of respiration happens inside cells to turn glucose and oxygen into energy (ATP).

What is internal respiration?

200
Called the voice box, this structure contains your vocal cords.

What is the larynx?

200

Cellular respiration takes place inside this specific powerhouse organelle.

What is the mitochondrion?

200

What is the name of the protector of your lungs that expands when we breathe?

What is the ribcage?

200

This is the reason for one lung containing only two lobes (compared to three), making it smaller than the right.

What is making room for the heart?

300

The specific waste product created by cells during internal respiration.

What is carbon dioxide?

300

These two large tubes branch off from the trachea to lead air into each lung.

What are the bronchi?

300

This is the abbreviation for the main chemical energy molecule produced by cells.

What is ATP?

300

This is the name of the hollow space inside your nose that warms and wets the air we breathe.

What is the nasal cavity?

300

This is the space that would be covered if you stretched all of your alveoli out.

What is half a tennis court?

400

This is the scientific name for the throat.External respiration enables gas diffucion at the interface of the blood and is part of the lung.

What is the alveolar membrane?

400

This is the scientific name for the throat, which carries both food and air.

What is the pharynx?

400
Your cells need oxygen and this specific sugar molecule to perform aerobic respiration.

What is glucose?

400

These are the specific muscles between your ribs that help to expand the chest when breathing.

What are intercostal muscles?

400

 This is the number of breaths needed to keep going through a day.

What is 22,000 breaths?

500

This whole process moves air into and out of your lungs to swap carbon dioxide and oxygen.

What is the ventilation cycle?

500

These are the tiny, microscopic branches that split off from the bronchi and lead to the air sacs.

What are bronchioles?

500

This specific gas is a waste product made by your cells that your blood carries back to the lungs to be exhaled.

What is carbon dioxide?

500

This is the dome-shaped muschle located right beneath your lungs that moves up and down to help you breathe.

What is the diaphragm?

500

This is the reason for a mirror to fog when breathed on.

What is exhaling half a liter of water daily?

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