December+MDA

Tibia
The tibia is a lower leg bone most commonly known as the shin bone. There are two bones in the lower leg and this is stronger and larger than the other.

The tibia meets the patella at the attatchment point known as the patellar ligament. Both the tibia and the femur which is the upper leg bone join at the knee joint. When the bone starts to approach the ankle joint it widens slightly. This bone tends to be classified or known as the long bone because of its long and narrow shape. So called long bones are hallow in the middle, there are also areas and spots of spongy bone covering the entire structure. The middle of the bone that is hallow is also known as the medullary cavity. Surrounding this cavity is a thick layer of compact bone that gives the bone most of the strength and mass it accomodates.

This is one bone out of two lower leg bones. It is crucial like most bones, in this case crucial for the ability to walk.

Metacarpals
The metacarpals are bones of the hand. There are five in each hand and the are below the phalanges but above the carpals.

These bones join with the phalanges by digits. This is the skeletal structure of the palm. These lie side by side each slightly different from the other but all consisting of a general shape. The five metacarpals are separated by small intervals known as the interosseous spaces. Each individual metacarpal possesses a body, a carpal end, and a phalangeal end. The head of these bones are curved and join with the phalanges. The base is slightly curved but not as smooth as the head.

Metocarpals are different from each other but not opposite. They are similar to each other and are a very fascinating study.