Question

Mucous membrane-lined cavities called (0_ are found in

several bones surrounding the nasal cavities. They make the
skull less heavy and probably act as resonance chambers for
(7) . The passageway common to the digestive and respira-
tory systems, the (8) is often referred to as the throat; it
connects the nasal cavity with the () below. Clusters of
lymphatic tissue, (10), are part of the defensive system of
the body. Reinforcement of the trachea with (11) rings
prevents its collapse during (12) changes that occur during
breathing. The fact that the rings are incomplete posteriorly
allows a food bolus to bulge (13) during its transport to the
stomach. The larynx or voice box is built from many carti-
lages, but the largest is the (14) cartilage. Within the larynx
are the (15), which vibrate with exhaled air and allow an
individual to (16)

Answer 1

Pharynx

1. Pharynx: a tube-like passageway at the top of the throat that receives air, food, and liquids from the mouth or nose. 2. Epiglottis: a flap of tissue at the lower end of the pharynx that keeps food and liquid from entering the rest of the respiratory system.

Step-by-step explanation:

Pharynx, (Greek: “throat”) cone-shaped passageway leading from the oral and nasal cavities in the head to the esophagus and larynx. The pharynx chamber serves both respiratory and digestive functions. Thick fibres of muscle and connective tissue attach the pharynx to the base of the skull and surrounding structures.