Which bones have no muscle attachments?

Structure and function of the bone

Author: Dr. med. habil. Gesche Tallen, created on: April 12th, 2013, editing: Maria Yiallouros, last changed: June 12th, 2020

The human body is supported from the inside by a skeleton made up of over 200 different bones. The individual bones look different depending on where they are in the body and what function they fulfill.

The tasks of the bones are varied:

  • The bone is involved in all movements of the body. The cooperation of muscles, ligaments, joints and bones enables us to move.
  • The bones also protect our internal organs: for example, the skull bones the brain, the rib cage with the ribs, the heart and the lungs.
  • In addition, the red and white blood cells and platelets are produced in the red bone marrow. The bone marrow is therefore responsible for the formation of blood.
  • The bones also have an important function as calcium and phosphorus stores and thus play an important role in the metabolism of these minerals.

In adults, the skeletal system is predominantly bony, while in growing children and adolescents - depending on their age - it contains a greater or lesser proportion of cartilage tissue. Because: The majority of the later almost entirely bony skeletal parts are originally cartilage. They are only gradually transformed into bony skeletal parts in the course of development.

The replacement of cartilage by bone during skeletal growth begins in the embryo (around the sixth week) and continues beyond the age of 20. Many cell divisions are necessary for this ossification. There is therefore a likelihood that something goes wrong every now and then, for example that incorrect genetic information is passed on or that genetic information is lost. The malignant change (degeneration) of a cell and the development of a bone tumor can be the result.

In order for you to better understand the clinical picture of "Ewing's sarcoma" and the associated current treatment strategies, we would like to give a brief overview of how our bones are structured and how they function. The following chapter is not intended to be complete, but only serves to convey some general information from bone theory.

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