Ring Finger Anatomy

Tendons connect muscles to bones. The ability to flex the fingers consists of a system of flexor muscles in the forearm and their tendons are inserted into the bones of the fingers.

Diagram Of The Fingers Reading Industrial Wiring Diagrams

Fingers are easily injured and broken fingers are some of the most common traumatic injuries seen in an emergency room.

Ring finger anatomy. The ringer finger is comprised of three phalanges or bones extending from the hands fourth. The ring finger refers to the fourth digit of each hand located between the middle and pinky fingers. Finger fractures may account for up to 10 of all bone fractures.

The finger is controlled by a group of. Normally humans have five digits the bones of which are termed phalanges on each hand although some people have more or fewer than five due to congenital disorders such as polydactyly or oligodactyly or accidental or medical amputations. The flexor mechanism of the index middle ring and small fingers consists of the flexor digitorum profundus fdp and the flexor digitorum superficialis fds tendons.

Trigger finger is a condition that causes pain stiffness and a sensation of locking or catching when you bend and straighten your finger. Ulnar nerve palmar and dorsal back of the hand surface of the other half of the ring finger and the little finger. The thumb has two of each.

A basic understanding of the complex anatomy of the finger and of common tendon and ligament injury mechanisms can help physicians properly diagnose and treat finger injuries. Radial nerve dorsal surface excluding the tips of the thumb index middle and half of the ring fingers and web between thumb and index fingers. A flexor tendon injury can cause loss of flexion.

Each finger has 3 phalanges bones and 3 hinged joints. The fdp and fds muscles flex all the joints that they cross including the wrist the metacarpophalangeal joints and the proximal interphalangeal pip joints. Ligaments connect finger bones and help keep them in place.

A finger is a limb of the human body and a type of digit an organ of manipulation and sensation found in the hands of humans and other primates. Fingers have a complex anatomy. As the smallest digit the pinky is located next to the ring finger.

In comparison to other fingers the pinky possesses the most diminished range of motion. Because fingers are used for many everyday activities they are at higher risk than other parts of the body for traumatic injury including sports injuries workplace injuries and other accidents. The condition is also known as stenosing tenosynovitis the ring finger and thumb are most often affected by trigger finger but it can occur in the other fingers as well.

Trigger Finger Trigger Thumb Orthoinfo Aaos