UNIT IV. MOUTH CAVITY. DENTAL TISSUES

Lesson 7

Mouth Cavity. Grammar: Simple Tenses. Passive Voice

Exercise 1. Find the pronunciation of the following words in the dictionary and translate them.

pathway, boundary, primarily, tongue, ridge, swallow, mucosa, care, occupy, pyramid

Exercise 2. Active vocabulary. Learn the following words.

chewing - жевание

deglutition - глотание

dentition - ряд зубов

edge - край

insalivation - смачивание слюной

oropharynx - ротоглотка, мезофаринкс

pharyngeal cavity - гортанно-глоточная полость

respiration - дыхание

saliva - слюна

shape - форма

space - пространство

tear (tore, torn) - разрывать

to be subjected to - подвергаться

to extend - простираться

to grind (ground) - размалывать

Exercise 3. Translate the following word combinations before reading the text.

to pour saliva, prime organs, alveolar ridges, surrounding structures, normal physiological function, flat surface, beyond the level, final chewing

Exercise 4. Read and translate the following text into Russian.

THE MOUTH CAVITY

The oral (mouth) cavity is an oval-shaped cavity situated at the beginning of the alimentary canal. The oral cavity and oropharynx are spaces defined by both hard and soft tissue structures.

The shape of theses two spaces changes with normal physiologic function of the surrounding structures during speech, swallowing and respiration. Functionally, the oral cavity and oropharynx are the pathway that food takes, their boundaries are the muscles that move the food. Although primarily a space through which food and air travel, several structures are found in this space including the upper and lower dentition, the tongue, salivary glands, mucosal glands, mucosal tissue covering the hard palate and alveolar ridges invested by the gum.