Structure of the Respiratory System Checkpoint

Which is the pathway of oxygen to the lungs?

• nose - bronchus - trachea - larynx - pharynx - alveolus

• nose - larynx - pharynx - alveolus - bronchus - bronchiole

• nose - pharynx - larynx - trachea - bronchus - bronchiole - alveolus

• nose - trachea - bronchiole - alveolus - pharynx - bronchus - larynx

Which is the pathway of oxygen from the lungs to the body tissues?

• alveoli - bloodstream - red blood cells - tissues

• alveoli - red blood cells - bloodstream - tissues

• red blood cells - alveoli - bloodstream - tissues

• red blood cells - bloodstream - alveoli - tissues

Which of the following actions is NOT a part of exhalation?

• The rib cage contracts inward.

• The volume of the thoracic cavity decreases.

• The diaphragm contracts and moves downward.

• The pressure within the thoracic cavity increases.

Which of these statements does NOT describe the trachea?

• It is also called the voice box.

• It carries air to and from the lungs.

• Its lower ends branches into smaller tubes.

• It contains rings of cartilage that prevent it from collapsing.

The trachea is also known as _______

• larynx

• pharynx

• voice cord

• windpipe