Hand Veins Anatomy

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 anatomy of hand is the key for individuality of hand based biometrics.

Wrist Hand Anatomy

There are two prominent superficial veins of the upper limb.

Hand veins anatomy. The hand geometry biometric largely repre sents the anatomy of hand bones and muscles. Proximal to the hand there are 8 carpal bones. The dorsal digital veins of the hand pass on either side of the digits.

They communicate at intervals via. Watch the video mentioned above to learn all about the hand veins. The nerves allow you to feel what your hands and fingers are touching and help you move those muscles around.

Veins that are structured in this way are known as vena comitantes. The median nerve enters the hand through the carpal tunnel which is a passageway between the tubercles of the scaphoid and trapezium bones laterally and by the pisiform and the hook of the hamate on the medial side. The hand vein biometric represents the uniqueness in the anatomy of hand veins while the palmprint represents epiderm on the palm.

The radius articulates with the cashew shaped scaphoid bone laterally and the croissant shaped lunate. Blood from the digits and palm therefore drains primarily into the dorsal venous network on the back of the hand. Bones of the hand.

Low body fat genetics and even hot weather can make hand veins more noticeable. The brachial veins are the largest in size and are situated either side of the brachial artery. The hand is drained by superficial and deep veins.

See more ideas about anatomy hand veins and hand anatomy. They are the cephalic and basilic veins and these two extensive veins originate from the venous networks of the dorsum of the hand. Essentially the veins of the hand drain into either the radial or ulnar veins and consist of the following.

Superficial palmar venous arch. The pulsations of the brachial artery assist the venous return. The ulna articulates with the pyramid shaped triquetrum via a pad of triangular fibrocartilage.

Sometimes prominent hand veins can indicate a more serious. Perforating veins run between the deep and superficial veins of the upper limb connecting the two systems. Bulging hand veins are normal for many people.

The veins are very similar to the arteries so if you understand the latter then the drainage pattern of the hand will be a piece of cake. The hand possesses a rich blood supply with an extensive lymphatic system and vein network. Aug 5 2016 explore sergmel9s board veins anatomy followed by 229 people on pinterest.

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