Question

Use the word bank to match the term to the defination and to fill in the blanks below.

Answer 1

Answer:

1. alveoli

2. diaphragm

3. nasal passages

4. lungs

5. trachea

6. bronchi

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Answer 2

1. Alveoli : These little sacs are where carbon dioxide leaves the blood and oxygen enters it.
2. Diaphragm : This large muscle helps you fill and empty your lungs.
3. Nasal Passages : You inhale air through these about 20 times a minute.
4. Lungs : Two large, and very important, organs inside your chest cavity.
5. Trachea : This is the tube that carries air to the lungs.
6. Bronchi : The tubes inside the lungs that lead to the alveoli.

→ Alveoli

• Balloon-shaped tiny air sacs.
• Smallest structures of the respiratory system.
• Are the end points of respiratory system.

→ Diaphragm

• Dome shaped thin skeletal muscle.
• Located just below the lungs, separates abdomen from the chest.
• When we breathe in or inhale, it contacts and flattens.
• When we breathe out or exhale, it relaxes.

→ Nasal Passages

• A channel through the nose.
• Coated with mucus (tiny hair like cells).
• Bacteria, dust, and other particles are trapped from the inhaled air by the mucus.

→ Lungs

• Located on both left and right side of chest.
• Two air filled spongy sac like structures.
• The most important organ for respiration process.
• The major gaseous exchange of carbon dioxide and oxygen takes place inside the lungs.

→ Trachea

• Also known as the windpipe.
• A long tube-like structure connecting the nose to the lungs.
• It catches microbes and debris from the air and also moisturizes and warms it.

→ Bronchi

• Branched into smaller and smaller structures.
• Are the passages that lead trachea into lungs.
• Works as a passageway for air.

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