Breathing and Gas Exchange

What is the scientific word for 'chest'?

• Abdomen

• Thorax

Diaphragm

• A muscle beneath the lungs that assists breathing.

• The airtight sac surrounding each lung.

What is the scientific word for 'rib bones'?

• Costals

• Trachea

The pipe used for transporting food is the (1), the pipe used for transporting air is the (2).

• 1) trachea

  2) esophagus

• 1) esophagus

  2) trachea

The (1) splits into the (2) which then further splits into the (3).

• Trachea

  Bronchi

  Bronchioles

• Trachea

  Bronchioles

  Bronchi

Grape like sacs in the lungs that exchange gas with the capillaries.

• Cilia

• Alveoli

A sticky liquid made in the mouth and contains amylase enzyme is (1)

A sticky liquid made in the nose and breathing pipes is (2)

• 1) mucus

  2) saliva

• 1) saliva

  2) mucus

Mucus in the trachea...

• allows food to move down easily.

• traps dirt or bacteria.

The small hair-like structures in the trachea that prevent dirt and bacteria from reaching the lungs.

• Cilia

• Flagella

• Alveoli

Which component of the breathing system has a very large surface area?

• Trachea

• Alveoli

• Bronchi