Overview of Arm Anatomy The upper extremity, or arm, is a vital part of the human body that enables us to lift, hold, and move objects.[1] The human arm anatomy consists of three main parts: the upper arm, forearm, and hand. It stretches from the shoulder to the fingers and includes 30 bones in the … Read more

Overview of Nail Anatomy Nails are flat, protective structures found at the tips of the fingers and toes and are a defining feature of all primates. They are made of keratin, a strong and flexible protein that helps nails grow continuously and adapt to daily wear and tear. Nails play a crucial role in protecting … Read more