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Encyclopedia > Radial artery
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.
Latin A. Radialis
Gray's subject #151 592
Source brachial artery
Vein radial vein
MeSH Radial+Artery

In human anatomy, the radial artery is the main blood vessel, with oxygenated blood, of the lateral aspect of the forearm. Image File history File links Gray1237. ... Image File history File links Download high-resolution version (415x900, 116 KB) File links The following pages on the English Wikipedia link to this file (pages on other projects are not listed): Brachioradialis Brachial artery Median nerve Flexor digitorum profundus muscle Ulnar nerve Wikipedia:Grays Anatomy images with missing... Arteries of the right forearm - anterior view. ... Latin is an ancient Indo-European language originally spoken in Latium, the region immediately surrounding Rome. ... The brachial artery is a blood vessel of the upper arm. ... In anatomy, the radial vein is the main blood vessel, with de-oxygenated blood, of the lateral aspect of the forearm. ... Medical Subject Headings (MeSH) is a huge controlled vocabulary (or metadata system) for the purpose of indexing journal articles and books in the life sciences. ... Human anatomy or anthropotomy is a special field within anatomy. ... The arterial system The blood vessels are part of the circulatory system and function to transport blood throughout the body. ... Human blood smear: a - erythrocytes; b - neutrophil; c - eosinophil; d - lymphocyte. ... // The Human Forearm The forearm is the structure on the upper limb, between the elbow and the wrist. ...

Contents

Course

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. The brachial artery is a blood vessel of the upper arm. ... In anatomy, the cubital fossa is the area on the front side of the elbow joint of the arm. ... The anatomical snuff box is a depression on the back of the hand, just beneath the thumb, that is formed by two tendons. ... The dorsal interossei of the hand are muscles that occupy the space between the metacarpals. ... The Adductor pollicis muscle is a muscle of the human body. ... The deep palmar arch (deep volar arch) is an arterial network found in the palm. ... Arteries of the right forearm - anterior view. ...


Along its course, it is accompanied by a similarly named vein, the radial vein. In the circulatory system, a vein is a blood vessel that carries blood toward the heart. ... In anatomy, the radial vein is the main blood vessel, with de-oxygenated blood, of the lateral aspect of the forearm. ...


Branches

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

Arteries of the right forearm - anterior view. ... The radial collateral artery is a branch of the deep brachial artery. ... The palmar carpal branch of the radial artery is a small branch of the radial artery which arises near the lower border of the pronator quadratus, and, running across the front of the carpus, anastomoses with the palmar carpal branch of the ulnar artery. ... Pronator quadratus is a square shaped muscle on the distal forearm that acts to pronate (turn so the palm faces downwards) the hand. ... The 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.

The dorsal carpal arch (dorsal carpal network, posterior carpal arch) is an anatomical term for the combination (anastomosis) of dorsal carpal branch of the radial artery and the dorsal carpal branch of the ulnar artery near the back of the wrist. ...

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 princeps pollicis (principal artery of the thumb) arises from the radial artery just as it turns medially towards the deep part of the hand; it descends between the first dorsal interosseous muscle and the oblique head of the adductor pollicis, along the medial side of the first metacarpal bone... The radialis indicis artery (radial artery of index finger) is a branch of the radial artery that provides blood to the index finger. ... The deep palmar arch (deep volar arch) is an arterial network found in the palm. ...

Clinical significance

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). In medicine, a persons pulse is the throbbing of their arteries as an effect of the heart beat. ... Palpation is a method of examination in which the examiner feels the size or shape or firmness or location of something (of body parts when the examiner is a health professional). ... The anatomical snuff box is a depression on the back of the hand, just beneath the thumb, that is formed by two tendons. ... In human anatomy, the carpal bones are the bones of the human wrist. ... Heart rate is a term used to describe the frequency of the cardiac cycle. ...


The radial artery is used for coronary artery bypass grafting and is growing in popularity among cardiac surgeons.[1] Recently, it has been shown to have a superior peri-operative and post-operative course when compared to saphenous vein grafts.[2] A coronary artery bypass graft (CABG) or heart bypass is a surgical procedure performed in patients with coronary artery disease (see atherosclerosis) for the relief of angina and possible improved heart muscle function. ... A Cardiac Surgeon is a surgeon who performs cardiac surgery - operative procedures on the Heart and great vessels. ... The great (also called greater) saphenous vein is the large subcutaneous vein of the leg and thigh. ...


See also

Allens test is used to test blood supply to the hand. ...

Additional images

References

  1.   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
  2.  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

External links

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. The public domain comprises the body of all creative works and other knowledge—writing, artwork, music, science, inventions, and others—in which no person or organization has any proprietary interest. ... An illustration from the 1918 edition Henry Grays Anatomy of the Human Body, commonly known as Grays Anatomy after Henry Gray, is an anatomy textbook widely regarded as a classic work on human anatomy. ...


  Results from FactBites:
 
VI. The Arteries. 4b. 3. The Radial Artery. Gray, Henry. 1918. Anatomy of the Human Body. (1303 words)
In its course downward, it lies upon the tendon of the Biceps brachii, the Supinator, the Pronator teres, the radial origin of the Flexor digitorum sublimis, the Flexor pollicis longus, the Pronator quadratus, and the lower end of the radius.
The superficial branch of the radial nerve is close to the lateral side of the artery in the middle third of its course; and some filaments of the lateral antibrachial cutaneous nerve run along the lower part of the artery as it winds around the wrist.
The volar carpal branch (ramus carpeus volaris; anterior radial carpal artery) is a small vessel which arises near the lower border of the Pronator quadratus, and, running across the front of the carpus, anastomoses with the volar carpal branch of the ulnar artery.
Radial artery - Wikipedia, the free encyclopedia (744 words)
In human anatomy, the radial artery is the main blood vessel, with oxygenated blood, of the lateral aspect of the forearm.
The radial artery arises from the bifurcation of the brachial artery in the cubital fossa.
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).
  More results at FactBites »

 
 

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