Thumb Bone Anatomy

This connects to the thumbs distal phalanx which is also the tip of the digit. The thumb has two bones.

Adult Thumb Metacarpal Fractures Midwest Bone And Joint

The thumb connects with a bone in the hand first metacarpal.

Thumb bone anatomy. The finger bones are known as phalanges singular phalanx. Each metacarpal has a base which articulates with the carpals and a head which articulates with the finger bones clinically known as the phalanges to form the knuckles. Anatomy of the fingers finger bones.

The second bone proximal phalange extends from the knuckle to the base of the thumb. The wrist is a complex mechanical system of 8 small bones known as the carpal bones. Having a dorsal surface that features hair and a nail and a hairless palmar aspect with fingerprint ridges.

Nerves send signals from the brain to the. Above the metacarpals below the knuckle. Anatomy of the hand and wrist.

The flexor pollicis brevis tendon and the adductor pollicis attach to the thumb sesamoids. One row connects with the ends of the bones in the forearm radius and ulna. The first metacarpal is on the lateral or thumb side of your hand.

Bones muscles tendons nerves. This is the area of webbing between the thumb and the first finger. Just above the knuckle.

The thumb shares the following with each of the other four fingers. Unlike fingers the thumb does not possess an intermediate phalanx bone. The wrist links the hand to the arm.

The first bone distal phalange extends from the tip of the thumb to the knuckle. The carpal bones are arranged in 2 interrelated rows. Anatomically the thumb is compromised of the metacarpal connected to the trapezium a carpal bone in the wrist.

There are two interphalangeal joints ip joints on each finger. The fifth metacarpal is on the medial side just under your pinkie finger. Having a skeleton of phalanges joined by hinge like joints that provide flexion toward the palm of the hand.

The finger bones as shown in the figure above are. This first metacarpal connects to the proximal phalanx. Nerves of the fingers.

Ask a doctor online now. The thumb sesamoids are two small round bones at about the level of the thumb metacarpophalangeal joint these bones as with all sesamoid bones lie within tendons.

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