Anatomy Of Wrist
Your wrist is a complex joint consisting of multiple small joints that provide connection between radius (located on the side of your thumb) and ulna (located on the side of little finger) of forearm and carpel bones of hand. Different structures of your wrist resemble your ankle,but its bones are fragile and smaller with thin ligaments and thinner cartilage.
Your wrist consists of 8 carpel bones that are organized in two rows of four bones. The ulna doesn’t form direct connection with wrist, but a facilitating disc called triangular fibrocartilage complex (TFCC) serves as type of meniscus. Weight bearing activities causes injury of TFCC. Radius also have attachment with TFCC through fascia and ligament so that its injury has vast effect on wrist functioning.
Each of the small wrist bone forms a smaller joint with nearby small bones, creating multiple joints allowing diverse motion of wrist and hand. The ligament in your wrist supports the wrist joint.
Different muscles providing hand and wrist movement are located in your forearm having long tendons that can reach your hand and wrist. Two bands of thick ligaments at your wrist will keep your tendons in place. The anterior band located on palmer side called transverse carpel ligament creates a tunnel with your carpel bones providing passage for median nerve to run along the length of your arm to your hand.