Question

В зубной системе грызунов отсутствуют: Резцы; Клыки; Малые коренные зубы; Большие коренные зубы.

Answer 1

У грызунов отсутствуют клыки

Answer 2

Absence of Teeth in Rodent Dental System

In the dental system of rodents, the following teeth are absent:

1. Incisors (Rz) - Rodents have a unique dental formula that includes the absence of certain teeth. The dental formula for rodents typically includes the absence of incisors, which are the front teeth used for gnawing and biting.

2. Canines (C) - Additionally, rodents lack canines, which are the pointed teeth located next to the incisors.

3. Small Rooted Teeth (P) - Rodents also lack small rooted teeth, which are the premolars located behind the canines.

4. Large Rooted Teeth (M) - Furthermore, rodents do not have large rooted teeth, which are the molars located at the back of the mouth.

The dental formula for rodents typically reflects these absences as follows: - 2 Incisors (I) - 1 Canine (C) - 2 Premolars (P) - 3 Molars (M).

This unique dental formula is a distinctive feature of rodent dental anatomy, reflecting the absence of certain types of teeth and the specific arrangement of the remaining teeth.

Rodents have evolved this dental structure to suit their dietary and ecological needs, and it plays a crucial role in their feeding habits and overall survival.

If you have any more questions about rodent dental anatomy or any other topic, feel free to ask!