ma400 1

The exchange of gases between the blood and tissue cells is known as

• internal respiration

• exhalation

• external respiration

• breathing

Which of the following lines the paranasal sinuses?

What is the function of mucus in the respiratory tract?

• Helps to equalize air pressure.

• Traps foreign particles.

• Destroys microorganisms.

• Warms air entering from the outside.

Which of the following propels mucus toward the pharynx?

The Eustachian tubes open into the:

• laryngopharynx.

• oropharynx.

• oropharynx.

• nasopharynx.

What is the name of the passageway for air for air between the pharynx and the trachea (also called the voice box)?

Which of the following prevents food and water from entering the trachea?

• glottis

• epiglottis

• cricoid cartilage

• fauces

The thyroid cartilage located in the larynx is commonly called the:

• adams apple

• true vocal cords

• uvula

• false vocal cords

What makes up the vocal cords?

• simple epithelium

• muscle

• tendons

• ligaments

Which of the following is supported by 15 to 20 C-shaped pieces of hyaline cartilage?