AP BIOLOGY

ANIMAL PHYSIOLOGY

GAS EXCHANGE IN HUMANS

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Tiny, hair-like projections that move together in a sweeping motion to move mucus and pathogens out of the trachea.
A
villi
B
trachea
C
pharynx
D
cilia
Explanation: 

Detailed explanation-1: -The bronchus in the lungs are lined with hair-like projections called cilia that move microbes and debris up and out of the airways. Scattered throughout the cilia are goblet cells that secrete mucus which helps protect the lining of the bronchus and trap microorganisms.

Detailed explanation-2: -Tiny hairs in the nose called cilia (SIL-ee-uh) filter out dust and other particles. The nasal cavity and mouth join at the area in the back of the throat called the pharynx (FAR-inks). The pharynx is part of two body systems (the respiratory system and the digestive system) because it carries both air and food.

Detailed explanation-3: -In the trachea’s inner layer, you have small, hair-like structures called cilia. Cilia move in rhythm to push mucus out of your trachea so that you either expel or swallow it.

Detailed explanation-4: -Cilia are mobile, tiny, finger-like projections on the surface of airway cells. Cilia line the airways and help move mucus up and out of the lungs [5].

Detailed explanation-5: -Hairlike structures called cilia line the mucous membrane and move the particles trapped in the mucus out of the nose. Inhaled air is moistened, warmed, and cleansed by the tissue that lines the nasal cavity.

There is 1 question to complete.