Пясть (Metacarpus)

Metacarpus - five short tubular bones of the hand that articulate with the bones of the wrist and the proximal phalanges of the fingers. The metacarpus is made up of 5 bones called metacarpals. They are located parallel to each other between the bones of the wrist and the proximal phalanges of the fingers.

The metacarpals are numbered from the lateral (little finger) side to the medial (thumb) side:

1. Metacarpal V (little finger)
2. Metacarpal IV (ring finger)
3. Metacarpal III (middle finger)
4. Metacarpal II (index finger)
5. Metacarpal I (thumb)

Each metacarpal bone has a basal (proximal) and capitate (distal) end. The basal end of the metacarpal bone articulates with the bones of the wrist, and the capitate end with the proximal phalanx of the corresponding finger.

The metacarpus plays an important role in the movement and function of the hand and fingers. The metacarpal bones transmit force from the forearm to the fingers, providing grip strength and finger movement.

Pastern (Metacarpus): anatomy and functions

The metacarpus, also known as the metacarpus, is one of the most important parts of the hand. It consists of five short tubular bones that connect to the bones of the wrist and the proximal phalanges of the fingers. The metacarpus is a key element in the anatomy and function of the hand, allowing it to perform a wide range of movements and maintain stability.

Anatomy of the metacarpus

Each metacarpal bone is tube-shaped and is called a metacarpal bone. They are numbered from one to five, starting from the thumb. Each metacarpal bone has a basal portion, which articulates with the carpal bones, and a head, which articulates with the proximal phalanx of the finger.

Metacarpal bones have different shapes and sizes, which provides the hand with a variety of movements. For example, the first metacarpal bone, connected to the thumb, is shorter and wider than the rest of the metacarpal bones, allowing the thumb to have a wider range of motion.

Functions of the metacarpus

The metacarpus plays a key role in maintaining the stability of the hand and ensuring its accurate orientation during movement. The metacarpal bones connect with the carpal bones and fingers, forming a complex structure that provides rigidity and stability to the hand. At the same time, the metacarpus also allows the hand to move in different directions and perform complex movements.

In addition, the metacarpus has an important role in transmitting force from the muscles of the hand to the fingers. The muscles that run along the hand attach to the metacarpal bones and can control the movements of the hand and fingers. This allows the hand to perform many different actions, from small finger movements to powerful strokes.

Conclusion

The metacarpus is an important part of the hand anatomy, playing a key role in hand function and stability. The metacarpal bones form a complex structure that provides rigidity and stability to the hand while allowing it to perform a wide range of movements. Understanding the anatomy and function of the metacarpus is essential to understanding the hand in its various applications, from daily tasks to athletic training and professional activities.

The metacarpals (metacarpals) are five short, tubular bones that are found in the human hand and serve an important function in movement. They connect the wrist to the fingers and allow us to perform various movements with our hands.

The metacarpal bones are part of the skeleton of the hand and consist of several parts: the neck, body and head. The necks are the narrowest parts of the bones and articulate with the carpal bones, and the heads connect the metacarpal bones with the proximal (closest to the fingers) phalanges.

There are 5 metacarpal bones in the human hand:

1. The metacarpal is the longest and largest metacarpal bone and supports the thumb.
2. The index metacarpal bone is the second longest and largest metacarpal bone, connecting the index finger to the metacarpal bone.
3. The middle metacarpal bone is the third metacarpal bone in length and size, connecting the middle finger to the hand.
4. The innominate metacarpal bone is the fourth metacarpal bone in length and size, connecting the ring finger with the hand.
5. The little finger is the smallest and last metacarpal bone in the hand, which connects the little finger to the hand and allows it to move.

The importance of the metacarpal bones is that they provide stability and movement to the hand, allowing a person to perform various hand activities such as writing, drawing, working with tools, etc. In addition, the metacarpal bones can be susceptible to various diseases and injuries, so it is important to monitor their condition and take care of your health.

The metacarpals are the bones that connect a person's wrist and hand and are part of their skeleton. Below we will look at the main characteristics of this bone.

The metacarpal bones are divided into only five parts:

- A base that attaches to the wrist. - The bone of the first finger, which is connected directly to the wrist. - The remaining four points, which connects to the proximal phalanx of the finger.

These parts have great strength due to the structure of the bone and are located high, and also play an important role in holding the muscles and joints of the forearm.

Most metacarpal bones contain a bony or fibrous ring canal where the middle