Radial Artery

Radial Artery


RADIAL ARTERY

  • It is one of the terminal branch of brachial artery, arising in cubital fossa.
  • In middle third of forearm it accompanies the superficial branch of radial nerve.
  • At the level of radial styloid process, it passes backward to enter into anatomical snuff box.
  • Radial artery is the only content of anatomical snuff box.
  • Leaving the anatomical snuff box it passes b/w two heads of first dorsal interosseous muscle & then b/w two heads of adductor pollicis.
  • After that it continues as deep palmar arch, which is completed by deep branch of ulnar artery.

Branches of radial artery are:

A. In forearm

1) Radial recurrent: Anastomoses with the radial collateral branch of profunda brachii.

2. Palmar carpal branch: Forms palmar carpal arterial arch with:

  • Palmar carpal branch of ulnar artery
  • Branch from anterior interosseous artery
  • Recurrent branch of deep palmar arch

3. Superficial palmar branch: It terminates by completing the superficial palmar arch, which is mainly formed by superficial branch of ulnar artery.

B. In Dorsum of hand

1. Dorsal carpal branch: Forms dorsal carpal arterial arch with

  • Dorsal branch of ulnar artery
  • Branch from anterior interosseous artery
  • Branch from posterior interosseous artery

2. First dorsal metacarpal branch: Supplies dorsum of thumb & lateral margin of index finger.

C. In the Palm

  1. Princeps pollicis artery: Supplies palmar aspect of thumb.
  2. Radialis indicis artery: Supplies palmar aspect of radial margin of index finger.

Exam Question

  • Radial artery is the  terminal branch of brachial artery, arising in cubital fossa
  • Radial artery is the only content of anatomical snuff box.
Don’t Forget to Solve all the previous Year Question asked on Radial Artery

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