LEG

General

The leg, also known as the free lower extremity in medical terminology, is primarily used for this

Stand and the
Locomotion.

It is made up of various structures that together enable movement.

function

Due to the individual parts of the Leg it is possible for humans upright on two legs stand and to go. The individual play Joints and the numerous Muscles a major role. These allow the movements in

hip,
knee and
foot.

The single ones bone of the leg are designed in such a way that they cover the entire body was standing can hold.
The annoy serve alongside the Pain mediation above all the function of the muscles and the transfer of a secure stance so that the human being balance can hold.

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anatomy

The leg consists of the

Buttocks, the
Hip joint,
Thigh,
Knee joint,
Lower leg, the
upper and lower ankle, as well as the
Tarsus and the
Toes.

The individual bony structures are connected to one another by the aforementioned joints. The buttocks are made up of three large muscles, which are used for standing and walking as well as the upper and lower legs.

There's one in the hip joint

Diffraction (Flexion) and
Elongation (Extension), as well as a
Introduction (Adduction) and
Routing (Abduction) of the thigh is possible.

Also a light one Inside- and External rotation can in hip joint are executed. The is attached to the hip joint largest long bones of man. This is called the femur (Thigh bone) designated. The distal end (distal) forms the knee joint together with the shin of the lower leg. Also in this are Bend- and Stretching movements possible. Likewise an easy one Inside- and External rotation.

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The lower leg itself consists of two bony structures. Dem Shin (Tibia) and the Fibula (Fibula).

But that has Shin the much more important function and contributes significantly to Statics of the leg. In addition, only the shin has an articulated connection to the thigh.
The Fibula on the other hand, it is much thinner and has only a slight connection to the shin on its part near the body, which however does not take on any major function.

The fibula itself serves primarily as the origin and attachment point of various muscles. At the distant (distal) The end of the lower leg closes upper ankle on. This is created by the articulated connection between the Malleole fork and the Ankle bone (Talus). The malleolar fork is through the

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Outside- and
Inner ankle formed by the tibia and fibula.

In the upper ankle joint, the movement of the foot is especially important above (Dorsiflexion) and after below (Plantar flexion) possible. To the upper ankle closes that lower ankle on.

This is made possible by the connection between the Ankle bone (Talus) and the Metatarsal bones educated. The movement of the inner edge of the foot is particularly evident in this joint Inside (Supination), or the lifting of the outer edge of the foot Outside (Pronation) instead of. This is followed by the numerous small joints of both the metatarsus and the toes, which are connected to each other and which Fine movements of Foot enable. However, all of these movements in the joints are made possible by the numerous muscles of the

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Upper-,
Lower leg and
foot enables.

These individual muscles are traversed by the annoy innervated and thereby determines their movement and thus the movement of the entire leg. In addition, there are numerous vessels that supply blood to the leg. These come from the big ones Pelvic arteries and branch out further and further in their course, so that they ultimately supply the entire leg down to the toes. The venous blood returns in a similar way, from the toes up to the large ones Pelvic veins.

Summary

The leg is the main organ for Locomotion of the human body and thus a very important component for coping with everyday life.

It consists of numerous structures and begins on buttocks. It then spreads over the bony and muscular structures that follow, up to the Toes away. In order to gear and was standing are possible, all structures, their movements and connections must be perfectly coordinated.

Besides the

Muscles and
bone but they are too
Vessels and
annoy significantly involved in the function and structure of the leg.

The Arteries and annoy branch in pool and run from there all the way down to the toes. In their course they give off numerous branches and thus supply the entire leg. They run in the opposite direction Veins and Lymphatic vessels from the toes and end in the pelvis where the blood and the Lymph fluid is collected from the legs and transported on.

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