What are the forearm muscles called that straighten the wrist, hand, and fingers?

The forearm muscles responsible for straightening the wrist, hand, and fingers are known as extensors. These muscles play a crucial role in extending or straightening the joints, allowing for movements that open the hand or lift the fingers away from the palm. When the extensors contract, they produce movement that counteracts flexion, which is the action of bending a joint.

This action is fundamental in various activities, such as typing, playing musical instruments, and performing tasks that require precision in hand movements. Understanding the role of extensors is essential for estheticians, as it helps in recognizing how muscle function can influence the overall appearance and health of the skin on the hands and forearms, as well as understanding the biomechanics of services performed.