Figure 1 : Appendicular Skeleton retrieved February 28, 2019, from https://medicalartlibrary.com/skeleton/
The figure above depicts the appendicular skeleton composed of the upper and lower limbs. The upper limbs are essential in grasping and manipulating objects whereas the lower limbs enable movement or locomotion. The pectoral girdle attaches the upper limbs whereas the pelvic girdle attaches the lower limbs to the body as depicted in the figure above.
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The Upper Limbs
Thirty bones belong to the upper limb under three regions from the wrist and hand to the arms to the elbow and from the elbow to the shoulders. The humerus is the single bone joining the shoulder to the elbow, whereas the ulna and radius are the two bones on the forearms. Lastly, the carpals, metacarpals, and phalanges form the hand. The main function of the upper limb is to hold and catch with the ability to lift based on the movement of the upper limbs.
The Pectoral Girdle
The scapula and clavicle are the two bones that attach the upper limbs to the skeleton or body. The scapula is located on the posterior and also known as shoulder blades whereas clavicle is in the anterior and known as collarbone.
The Pelvic Girdle
The bone sockets join the lower limbs to the axial skeleton. The pelvic girdle includes pubis, ischium, and ilium. The female pelvis is wider compared to that of the male because it has to accommodate the womb.
The Lower Limb
This is the lower part of the human skeleton from the waist to the feet. The femur is the single bone in the thighs and is connected to the fibula and tibia by the patella or the kneecap. The tibia and fibula connect to the ankles to the tarsals that connect to the metatarsals and phalanges consecutively to form the feet and toes. The lower limbs help the individual to stand, walk, among other locomotion.
