Hand Vein Anatomy

They communicate at intervals via the dorsal venous arches. The hand geometry biometric largely repre sents the anatomy of hand bones and muscles.

Human Hand Skeleton Vein Anatomy Black White Vector

These veins tend to be a good place for venipuncture because the metacarpus bones make for a natural splint.

Hand vein anatomy. Bones of the hand. The anatomy of the hand is incomplete without understanding the wrist. Metacarpal veins lie flat between the joints and metacarpal bones of the dorsal aspect of the hand.

From the palmar aspect of the hand most blood flows to the dorsum of the hand especially through the intercapitular veins that lie between the heads of the metacarpal bones aka knuckles and around the margins of these heads. The veins on the adjacent borders of the fingers form a network. The dorsal digital veins of the hand pass on either side of the digits.

Instead it innervates the skin and fascia of the lateral portion of the back of the hand and lateral three and half digits. Proximal to the hand there are 8 carpal bones. This complex structure connects the entire hand to the radius and ulna facilitates the passage of tendons together with the above mentioned neurovascular structures from the forearm to the hand and permits us to exploit all its movements.

The arteries and veins the ulnar and radial arteries carry blood down through the forearm into the wrist where they anastomose join together to form arches. It doesnt innervate any intrinsic hand muscles. Aug 5 2016 explore sergmel9s board veins anatomy followed by 229 people on pinterest.

Blood from the digits and palm therefore drains primarily into the dorsal venous network on the back of the hand. See more ideas about anatomy hand veins and hand anatomy. The anatomy of hand is the key for individuality of hand based biometrics.

The ulna articulates with the pyramid shaped triquetrum via a pad of triangular fibrocartilage. The radius articulates with the cashew shaped scaphoid bone laterally and the croissant shaped lunate. The hand vein biometric represents the uniqueness in the anatomy of hand veins while the palmprint represents epiderm on the palm.

Those are flexion extension abduction and adduction of the hand.

Muscles Of The Hand Anatomy Tutorial