Must Know Parts Of Skeletal System

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Following parts of Skeletal System were few of the must know parts of Skeletal System,

sternum:

The "sternum" is the medical name for the breastbone, a long, narrow, flat plate that forms the center of the front of the chest. It develops in three parts: an upper portion, or "manubrium," a middle "body," and a lower "xiphoid process" that projects down. The xiphoid process begins as a piece of cartilage. It slowly hardens into bone until, by middle life, it is usually fused to the body of the sternum. The sides of the manubrium and the body are notched where they unite with costal cartilages. It also joins the clavicles (shoulder blades) on its upper border. It usually remains a separate bone until middle age or later, when it fuses to the body of the sternum. The sternum is very strong and requires great force to fracture. The main danger in this type of injury is not the fracture itself, but the chance that the broken bone may be driven into the heart, which lies just behind it.

Tibia:

The tibia is the inner and thicker of the two long bones in the lower leg. It is also called the shin bone. Its ...
... upper end is expanded into "medial" and "lateral condyles," which have concave surfaces and unite with the condyles of the femur. The tibia is the supporting bone of the lower leg and runs parallel to the other, smaller bone (the fibula) to which it is attached by ligaments. The front of the tibia lies just below the skin and can easily be felt. The upper end joins the femur to form the knee joint, and the lower end forms part of the ankle joint. On the inside of the ankle, the tibia widens and sticks out to form a large bony prominence called the "medial malleolus." On the outside of the ankle is a protrusion called the "lateral malleolus," which is sometimes called the ankle bone, and is the most common area for ankle sprains.

Femur:

The "femur" is the thigh bone, the longest bone in the body. The lower end joins the tibia (shin) to form the knee joint. The upper end is rounded into a ball (or "head" of the femur) that fits into a socket in the pelvis to form the hip joint. Just below the head is a constriction, or neck, and two large processes - an upper, lateral "greater trochanter" and a lower, medial "lesser trochanter." These processes provide attachments for muscles of the legs and buttocks. Femoral condyles are large, rounded bumps on the distal end of the femur. They articulate (come in contact) with the condyles of the tibia and form part of the knee joint. The neck of the femur gives the hip joint a wide range of movement, but it is a point of weakness and a common site of fracture.

Oblique Cord:

The "oblique cord," also called the "oblique ligament," is a small, flattened band extending distally and laterally from the lateral side of the tubercle of the ulna (lower arm bone) at the base of the coronoid process to the radius a little distal to the radial tuberosity. Its fibers run in the opposite direction to those of the interosseous membrane.

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