Hand Arterial Anatomy

The main nerves you need to know for the wrist and hand come from the median ulnar and radial nerves. These nerves supply the skin muscles joints and other tissues.

Anatomic Basis And Physiological Rationale Of Distal Radial

As the radial artery continues in the hand it wraps around the thumb and comes across the deep palm.

Hand arterial anatomy. The arterial supply to the hand is comprised of a complex vascular network formed from the branches and distal continuations of the radial and ulnar arteries. This vessel which resembles the shape of an arch is called the deep palmar arch. This rich vascular network can be divided into palmar and dorsal components.

This allows the hand to be perfused even when under high resistance to flow such as when grasping or applying pressure. The anatomy of the hand is incomplete without understanding the wrist. You can click the image to magnify if you cannot see clearly.

The nerves allow you to feel what your hands and fingers are touching and help you move those muscles around. First dorsal metacarpal artery arises just before the radial artery passes between the two heads of the first dorsal interosseous muscle and divides almost immediately into two branches which supply the adjacent sides of the thumb and index finger. In the index finger the ulnar digital artery is dominant.

In the little finger the radial digital artery is dominant in the middle and ring fingers ulnar and radial digital arteries are dominant respectively but dominance is less obvious. The hand has a rich arterial supply with many anastomoses between vessels. Arterial supply to the hand begins with the ulnar and radial arteries.

This small but important vessel sends off small branches to supply blood to the thumb and index finger. We think this is the most useful anatomy picture that you need. 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 are the blood vessels that deliver oxygen rich blood from the heart to the tissues of the body. This image added by admin. Each artery is a muscular tube lined by smooth tissue and has three layers.

The lateral side of the thumb receives a branch directly from the radial artery.

Radial Artery Wikipedia