Skeletal System – man Anatomy

Introduction to Human Skeletal System:

Skeletal system is the system of bones, associated cartilages and joints of human body. Together these structures form the human skeleton. Skeleton can be defined as the hard framework of human body around which the entire body is built. Almost all the hard parts of human body are components of human skeletal system. Joints are very important because they make the hard and rigid skeleton allow different types of movements at different locations. If the skeleton were without joints, no movement would have taken place and the significance of human body; no more than a stone.

Human Skeleton

Human skeleton is composed of three main components; Bones, Associated cartilages and Joints.

Bones:

Bone is a tough and rigid form of connective tissue. It is the weight bearing organ of human body and it is responsible for almost all strength of human skeleton. For more details visit: Basic anatomy article; Bone.

Cartilages:

Cartilage is also a form of connective tissue but is not as tough and rigid as bone. The main difference in the cartilage and bone is the mineralization factor. Bones are highly mineralized with calcium salts while cartilages are not. For more details visit: Basic anatomy article; Cartilage and its types.

Joints:

Joints are important components of human skeleton because they make the human skeleton mobile. A joint occurs between two or more bones, bone and cartilage and cartilage and cartilage. For more details visit: Joints

Human skeleton can be divided into two divisions.

Axial Skeleton:

Axial skeleton forms the axis of human body. It consists of Skull, vertebral column and thoracic cage.

Axial Skeleton

Appendicular Skeleton:

It is the skeleton of appendages of human body. It consists of Shoulder girdle, Skeleton of upper limb, Pelvic girdle and Skeleton of lower limb.

Appendicular Skeleton

Human skeleton performs some important functions that are necessary for survival of human beings.

Basic Anatomy of Skeletal System

Upper Limb

Bones of Upper Limb

Joints of Upper Limb

Upper Limb Miscellaneous

Lower Limb

Bones of Lower Limb

Joints of Lower Limb

Lower Limb Miscellaneous

Thorax

Bones of Thorax

Joints of the Thoracic Cage

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Skeletal System - man Anatomy