Extremity is a noun and it means the outermost part and the body extremities are the external organs that are meant to do different moving tasks. These extremity organs should be protected from the effects of temperature. Also known as limbs, these extremities are further divided into categories.
According to the medical dictionary, the definition of body extremities is “The distal or terminal portion of the pointed structure is known as body extremities.” In this article, we will describe these categories and the functions associated with them, so read the article till the end.
Classification Of Extremities
There are 2 types of body extremities according to the work associated with them.
- Upper extremities : Arms
- Lower extremities : Legs
Now let’s discuss them one-by-one.
Upper Extremities Or Arms
Arms are the upper extremities of the human body. Upper extremities include the part starting from shoulder joints to hands. These are connected to the upper frame of the body and are meant to perform the function of movement to catch, hold and handle objects and perform various tasks.
The limbs are composed of these four parts:
- Shoulder girdles
The upper limbs are attached to the ribs frame and are embodied by two clavicles and two blades. A shoulder is the largest joint which is attached with Arm bone, Humerus. Radius and ulna bones are present in the forearms. Associated bones of the wrist joints are carpals, metacarpals and phalanges are found in the fingers.
Lower Extremities Or Legs
Legs are the lower extremities of the human body. Lower extremities include the part starting from hip joints to feet. These are connected to the lower frame of the body and are meant to perform the function of supporting the entire body by holding its weight. To run, walk and jump are also included in its functions.
The lower limbs are formed by the following parts:
- Pelvic girdle
The lower limb is attached to the body frame through the backbone. The bone of thigh is the largest bone in the human body, also known as the femur. Further, we find in the leg, tibia and fibula and the tarsus and metatarsus bones of the foot and the phalanges of the toes.
With a little effort it becomes very easier to remember the names of body extremities and their functions and if you have any query then write it down in the comments section. For more articles of your interest, you may visit Education category at Tryarticles.