Question

Функция остеон.........​

Answer 1

Ответ:

Он выполняет опорную и защитную функции.

Кости, словно рычаги, приводятся в движение прикрепленными к ним мышцами, в результате чего и осуществляется двигательная функция. Кости участвуют в обмене минеральными веществами и содержат красный костный мозг, орган кровотворения. Ткань, из которой состоит кость, представлена костными клетками со множеством отростков и межклеточным веществом.

Answer 2

Function of Osteons

Osteons are the basic structural units of compact bone. They are cylindrical structures that are responsible for the strength and support of bone tissue. Each osteon consists of several components that work together to perform various functions.

1. Lamellae: Osteons are composed of concentric rings of bone tissue called lamellae. These lamellae are arranged around a central canal called the Haversian canal. The lamellae provide strength and stability to the bone.

2. Haversian Canal: The Haversian canal is located at the center of each osteon. It contains blood vessels, nerves, and lymphatic vessels that supply nutrients and oxygen to the bone cells. The Haversian canal also serves as a pathway for waste removal from the bone tissue.

3. Lacunae: Lacunae are small spaces located between the lamellae. They house osteocytes, which are mature bone cells responsible for maintaining the bone tissue. Osteocytes communicate with each other and with the blood vessels in the Haversian canal through tiny channels called canaliculi.

4. Canaliculi: Canaliculi are small channels that connect the lacunae and allow for the exchange of nutrients, waste products, and signals between osteocytes and the blood vessels in the Haversian canal. This network of canaliculi ensures that all bone cells have access to nutrients and oxygen.

5. Volkmann's Canals: Volkmann's canals are horizontal channels that connect the Haversian canals of adjacent osteons. They allow for communication and nutrient exchange between different osteons.

The function of osteons is to provide structural support and strength to the bone tissue. They help in the transmission of forces and resist bending and twisting forces that bones may experience. Osteons also play a role in the repair and remodeling of bone tissue in response to injury or changes in mechanical stress.