ülajäsemetes

Ülajäsemetes is an Estonian term that translates to "upper limbs" in English. This refers to the parts of the human body that extend from the shoulders, specifically the arms, forearms, wrists, and hands. The upper limbs are crucial for a wide range of activities, including manipulation of objects, communication through gestures, and social interaction.

Anatomically, the upper limb is a complex structure. It begins with the shoulder girdle, which connects the arm to the axial skeleton. The arm itself contains the humerus bone. The forearm consists of two bones, the radius and the ulna, which allow for pronation and supination of the hand. The wrist, or carpus, is a complex joint formed by the distal ends of the radius and ulna and eight small carpal bones. Finally, the hand, or manus, is composed of the metacarpals and phalanges, providing the dexterity and fine motor control necessary for intricate tasks.

The muscles of the upper limb enable a vast array of movements, from gross motor actions like lifting and throwing to precise movements like writing or playing a musical instrument. Nerves originating from the brachial plexus control these muscles and provide sensory feedback from the skin. Blood supply is primarily through the subclavian artery and its branches. The functionality of the upper limbs is vital for an individual's independence and participation in daily life.