Anatomy lessons

Basic anatomy of the femur

 

The thigh bone of man is the longest bone of the entire body. It is joined by the hip joint with the pelvis and the knee joint to the lower leg. It has a short and a long leg. The short leg of the L is at its end with the hip name. The spherical end is therefore called the femoral head (caput femoris).

The connection between the long and the short portion of the thigh bone is named (upper collum femoris). This region is primarily a fall or accident probe especially in the elderly. It often lead to bone fractures.
The two bone protuberance are the great rolling hills (trochanter major) and the small trochanter (trochanter minor). The large rolling hills is towards the outside. The two bones are projections of muscles as starting points. The so-called "tough line" (linea aspera), is at the back of the thigh bone extending as a starting point for muscles.

The long femoral shaft (corpus femoris in anatomy lessons) ends in two cylindrical structures, the lateral condyle and the middle that form the knee joint, the articulated connection to the lower leg.

Tendons 

 

Tendon (Tendo) are the end pieces of the shiny white muscles. They are madet of tensile collagenous fiber bundles. Another part is the elastin, which makes the elastic fibers. Tendons do not contain blood vessels. They are fed by the slow exchange of tissue fluid.

The tendons are attached to the bone specific points, the apophyses. These have to be very tough because they have the muscle to withstand the tensile forces. They therefore are made of special bone cores, the little "annex" to the bone forming one. Then, the tendons and ligaments attached.

Tendons transfer the force from the muscle on the skeleton. They are very resistant to tensile forces.

The different form of chords can be distinguished:


Short tendons, which are not seen with the naked eye, such as the pectoralis major muscle (pectoralis major)

Long, narrow tendon, such as foot and hand muscles

Flat plate or tendons, also called the aponeuroses

Tendons can be straight and extend in the direction of the muscle. In this case they are called tensile tendon. Print tendons pass around a bone.

The fuselage remote from attachment points of muscles are known as attachments. The attachment points of the same muscle that lie is the origin. These tendons are the tendons of origin.