|Artery: Radial artery
| Palm of left hand, showing position of skin creases and bones, and surface markings for the volar arches.
| Ulnar and radial arteries. Deep view.
| A. Radialis
| subject #151 592
| brachial artery
| *in the forearm:
Radial recurrent artery
Palmar carpal branch of radial artery
Superficial palmar branch of the radial artery.
*At the wrist:
Dorsal carpal branch of radial artery
First dorsal metacarpal artery.
*In the hand:
Princeps pollicis artery
Deep palmar arch
| radial vein
In human anatomy, the radial artery is the main blood vessel, with oxygenated blood, of the lateral aspect of the forearm.
Additional recommended knowledge
The radial artery arises from the bifurcation of the brachial artery in the cubital fossa. It runs distally down the anterior part of the forearm. There, it serves as a landmark for the division between the anterior and posterior compartments of the forearm, with the posterior compartment beginning just lateral to the artery. The artery winds laterally around the wrist, passing through the anatomical snuff box and between the heads of the first dorsal interosseous muscle. It passes anteriorly between the heads of the adductor pollicis, and becomes the deep palmar arch, which joins with the deep branch of the ulnar artery.
Along its course, it is accompanied by a similarly named vein, the radial vein.
The named branches of the radial artery may be divided into three groups, corresponding with the three regions in which the vessel is situated.
In the Forearm
- Radial recurrent artery - arises just after the radial artery comes off the brachial artery. It travels superiorly to anastomose with the radial collateral artery.
- Palmar carpal branch of radial artery - a small vessel which arises near the lower border of the pronator quadratus
- Superficial palmar branch of the radial artery - arises from the radial artery, just where this vessel is about to wind around the lateral side of the wrist.
At the Wrist
- Dorsal carpal branch of radial artery - a small vessel which arises beneath the extensor tendons of the thumb
- 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; the lateral side of the thumb receives a branch directly from the radial artery.
In the Hand
- Princeps pollicis artery - arises from the radial artery just as it turns medially to the deep part of the hand.
- Radialis indicis - arises close to the princeps pollicis. The two arteries may arise from a common trunk, the first palmar metacarpal artery.
- Deep palmar arch - terminal part of radial artery.
The artery's pulse is palpable in the anatomical snuff box and on the anterior aspect of the arm over the carpal bones (where it is commonly used to assess the heart rate and cardiac rhythm).
The radial artery is used for coronary artery bypass grafting and is growing in popularity among cardiac surgeons. Recently, it has been shown to have a superior peri-operative and post-operative course when compared to saphenous vein grafts.
- ^ Sajja LR, Mannam G, Pantula NR, Sompalli S. Role of radial artery graft in coronary artery bypass grafting. Ann Thorac Surg. 2005 Jun;79(6):2180-8. PMID 15919345
- ^ Cohen G, Tamariz MG, Sever JY, Liaghati N, Guru V, Christakis GT, Bhatnagar G, Cutrara C, Abouzahr L, Goldman BS, Fremes SE. The radial artery versus the saphenous vein graft in contemporary CABG: a case-matched study. Ann Thorac Surg. 2001 Jan;71(1):180-5; discussion 185-6. PMID 11216742
|List of arteries of upper limbs
|scapular anastomosis - 1st part superior thoracic - 2nd part thoracoacromial (deltoid branch)- lateral thoracic - 3rd part subscapular (circumflex scapular, thoracodorsal) - anterior humeral circumflex - posterior humeral circumflex
|profunda brachii (radial collateral, medial collateral) - superior ulnar collateral - inferior ulnar collateral
|forearm: radial recurrent - palmar carpal branch - superficial palmar branch
wrist: dorsal carpal branch (dorsal carpal arch, dorsal metacarpal, dorsal digital)
hand: princeps pollicis - radial of index finger - deep palmar arch (palmar metacarpal)
|forearm: anterior ulnar recurrent - posterior ulnar recurrent - common interosseous (anterior, posterior, recurrent)
wrist: palmar carpal branch - dorsal carpal branch
hand: superficial palmar arch (common palmar digital, proper palmar digital) - deep palmar branch - palmar carpal arch
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.