Kyynärvarteen

Kyynärvarteen refers to the forearm, the part of the upper limb between the elbow and the wrist. It is a crucial anatomical region for a wide range of movements and functions. The forearm consists of two long bones: the radius and the ulna. The radius is located on the thumb side of the forearm, while the ulna is on the pinky finger side. These bones articulate at both the elbow and the wrist, allowing for pronation and supination, which are the movements of turning the palm downwards and upwards, respectively.

Numerous muscles are housed within the kyynärvarteen, enabling complex actions such as grasping, lifting, and fine motor skills. These muscles are organized into anterior and posterior compartments, each with specific functions. The anterior muscles are primarily responsible for flexing the wrist and fingers, while the posterior muscles control extension. Nerves, including the median, ulnar, and radial nerves, also traverse the kyynärvarteen, transmitting sensory information from the hand and forearm to the brain and motor commands from the brain to the muscles. Blood vessels, such as the radial and ulnar arteries, supply oxygenated blood to the region. The kyynärvarteen is susceptible to various injuries, including fractures, sprains, and nerve compressions.