Question

Функция локтевого сустава​

Answer 1

Объяснение:

Локтевой сустав – состоит из соединения плечевой и локтевой костей, между мыщелками которой движется локтевая кость, обеспечивая свободное движение предплечья, и лучевой кости. Говоря простым языком, благодаря локтевому суставу человек может свободно двигать руками, сгибая их в локте.

Answer 2

Function of the Elbow Joint

The elbow joint is a complex hinge joint that connects the upper arm bone (humerus) to the two forearm bones (radius and ulna). It allows for the flexion and extension of the forearm, as well as some rotation of the forearm. The primary function of the elbow joint is to facilitate the movement of the forearm, allowing us to perform various activities such as lifting, throwing, and gripping objects.

The elbow joint is made up of three main components: the humerus, the ulna, and the radius. The humerus forms the upper part of the joint, while the ulna and radius form the lower part. These bones are held together by ligaments, tendons, and muscles, which provide stability and allow for movement.

Flexion and Extension: The elbow joint allows for flexion and extension movements. Flexion refers to bending the forearm towards the upper arm, while extension refers to straightening the forearm. These movements are essential for activities such as lifting objects, throwing, and performing various daily tasks.

Rotation: In addition to flexion and extension, the elbow joint also allows for some rotation of the forearm. This rotation is known as pronation and supination. Pronation refers to the rotation of the forearm so that the palm faces downward, while supination refers to the rotation of the forearm so that the palm faces upward. These movements are important for activities such as turning a doorknob or using a screwdriver.

Stability and Support: The elbow joint is supported by various ligaments, tendons, and muscles that provide stability and support. Ligaments are strong bands of connective tissue that connect bones to each other, while tendons connect muscles to bones. These structures help to keep the joint stable and prevent excessive movement or dislocation.

Common Injuries and Conditions: The elbow joint can be susceptible to various injuries and conditions, including:

- Tennis Elbow (Lateral Epicondylitis): This is a condition characterized by inflammation of the tendons on the outside of the elbow, causing pain and tenderness. - Golfer's Elbow (Medial Epicondylitis): This is a condition characterized by inflammation of the tendons on the inside of the elbow, causing pain and tenderness. - Elbow Fractures: Fractures or breaks in the bones of the elbow joint can occur due to trauma or repetitive stress. - Elbow Dislocation: This occurs when the bones of the elbow joint are forced out of their normal position, often due to a fall or direct impact. - Olecranon Bursitis: This is the inflammation of the bursa, a fluid-filled sac that cushions the bones of the elbow joint.

It is important to seek medical attention if you experience persistent pain, swelling, or limited range of motion in the elbow joint.