Trachea | MCQs

Explanation

Lumen refers to the empty space inside dead cells of xylem vessels, which are arranged vertically and form the vascular tissue in plants.

The lumen provides a pathway for water and mineral transport from roots to leaves.

Explanation

• The air you breathe in enters the lungs through the windpipe (trachea).
• The trachea is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation

• When a person inhales, the air travels through the nose or mouth, into the larynx and then into the trachea; which is the main passageway into the lungs.
• The trachea divides into a right and left bronchi.
• Bronchi branch into smaller tubes that become bronchioles.
  

Explanation

• The trachea (windpipe) is a hollow tube in the chest.
• It connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.

Explanation

• During breathing, the clean, moist, and warm air enters the windpipe called the Trachea.
• The trachea is also known as the windpipe.
• It is a tube that connects the throat (pharynx) to the lungs, allowing air to pass through during breathing.