Knochengerüste

Knochengerüste, also known as skeletons, are structural frameworks found in many animals, particularly vertebrates. They provide support, protection for internal organs, and allow for movement through the action of muscles. In humans and other mammals, the skeleton is an endoskeleton, meaning it is internal. In contrast, invertebrates like insects and crustaceans have exoskeletons, which are external.

The human skeleton is composed of hundreds of bones, which vary in size and shape depending on their function. Long bones, such as those in the arms and legs, are involved in locomotion. Flat bones, like those in the skull, protect vital organs. Irregular bones, such as vertebrae, have complex shapes and perform specialized roles. The skeleton also includes sesamoid bones, which are embedded within tendons, and short bones found in the wrists and ankles.

Bones are living tissues that are constantly being remodeled. They consist of a hard outer layer called compact bone and a spongy inner layer called cancellous bone. Within the cancellous bone is bone marrow, which produces blood cells. The skeleton's structure is maintained by cartilage, ligaments, and tendons, which connect bones to each other and to muscles. The development and maintenance of a healthy skeleton are crucial for overall health and mobility.