Резцы

Ротовая полость:
1. Верхняя губа (лат. Labium superius)
2. Десна (лат. Gingiva)
3. Твёрдое нёбо (лат. Palatum durum)
4. Мягкое нёбо (лат. Palatum molle)
5. Язычок (лат. Uvula palatina)
6. Нёбная миндалина (лат. Tonsilla palatina)
7. Перешеек зева (лат. Isthmus faucium)
8. Большие коренные зубы (лат. Dentates molares)
9. Малые коренные зубы (лат. Dentates premolares)
10. Клык(и) (лат. Dentes canini)
11. Резцы (лат. Dentes incisivi)
12. Язык (лат. Lingua)

Резцы[1][2] (лат. Dentes incisivi) — зубы, функция которых заключается в откусывании пищи.

Зубы, по своей форме, делятся на три разряда: резцы — долотообразной формы, клыки и коренные[3]. В Толковом словаре живого великорусского языка Владимира Даля написано что передние зубы животных — Клещи́ (м. мн.)[4].

Описание

Резцы относительно острые и расположены в передней части челюсти. У человека в верхней и нижней челюсти имеются по два центральных и два боковых резца, из которых два центральных верхней челюсти более крупные. Вместе с клыками резцы образуют передние зубы. У разных видов млекопитающих резцы в течение эволюции претерпели различные преобразования. У слонов, например, верхние резцы образуют бивни[3]. У грызунов и зайцеобразных резцы имеют особое значение и являются одним из главных отличительных признаков этих отрядов. У жвачных в верхней челюсти нет резцов, а противоположенным препятствием для резцов нижней челюсти служит нёбо.

Примечания

  1. ↑ Резцы // Энциклопедический словарь Брокгауза и Ефрона : в 86 т. (82 т. и 4 доп.). — СПб., 1890—1907.
  2. ↑ Резцы // Малый энциклопедический словарь Брокгауза и Ефрона. — 2-е изд., вновь перераб. и значит. доп. — Т. 1—2. — СПб., 1907—1909.
  3. ↑ 1 2 Зубы // Энциклопедический словарь Брокгауза и Ефрона : в 86 т. (82 т. и 4 доп.). — СПб., 1890—1907.
  4. ↑ Клести // Толковый словарь живого великорусского языка : в 4 т. / авт.-сост. В. И. Даль. — 2-е изд. — СПб. : Типография М. О. Вольфа, 1880—1882.

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