Major Bones Of The Skeleton Diagram
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Major bones of the skeleton diagram. Major bones of the skeletal system. The human skeletal system consists of all of the bones cartilage tendons and ligaments in the body. The bones of the axial skeleton act as a hard shell to protect the internal organs such as the brain and the heart from damage caused by external forces. The human skeleton can be divided into the axial skeleton and the appendicular skeleton.
Scientists consider the skeleton to be composed of two parts. The human skeleton like that of other vertebrates consists of two principal subdivisions each with origins distinct from the others and each presenting certain individual features these are 1 the axial comprising the vertebral column the spine and much of the skull and 2 the appendicular to which the pelvic hip and pectoral shoulder girdles and the bones and cartilages of the. The bones of your head make up your skull. Some bones also produce blood cells.
The bone mass in the skeleton reaches maximum density around age 21. Altogether the skeleton makes up about 20 percent of a person s body weight. Bones provide connections for ligaments and muscles enabling movement. Bones are also important for protecting vital organs such as the brain and heart.
The 206 bones in the human body can be broken down into sections to better describe the major bones of the skeletal system and their functions. The human skeleton is the internal framework of the human body. The bones of the appendicular skeleton provide support and flexibility at the joints and anchor the muscles that move the limbs. The axial bones are located within the head spine and ribs of the body while the appendicular bones compose the limbs shoulders and pelvis.
The functions of the skeleton are to provide support give our bodies shape provide protection to other systems and organs of the body to provide attachments for muscles to produce movement and to produce red blood cells. Here is the list of the major bones of the skeletal system and their exact location. The human body is full of many tiny bones but there are only 18 20 bones that play a major part in the structure of our skeleton. Cranium the cranium is a skull bone that covers the brain as seen in the skeleton diagram.
Our bones produce over two million red blood cells every second. Start studying major bones of skeleton. It carries our brain and also supports out face.