The radial artery begins in the cubital fossa at the level of the radius neck. It passes downwards and laterally beneath the brachioradialis muscle, resting on the deep forearm muscles. In the middle third, the radial nerve lies laterally. The radial artery leaves the forearm by winding around the lateral wrist aspect and reaches the posterior hand beneath tendons. It descends on the dorsum beneath muscles before turning forward into the palm, where it forms the deep palmar arch. The radial artery gives off several branches in the forearm and hand and anastomoses with other arteries. Clinically, the radial pulse is used to measure blood pressure and the artery can be used for coronary bypass

1. NAME : NUR FARRA NAJWA
MATRIC NUM : 082015100035

2. OBJECTIVE
• Beginning of artery
• Course of artery
• Branches of artery
• Anastomosis of artery

3. INTRODUCTION
• Smaller artery of the terminal branches of
brachial artery
• Begins at the cubittal fossa at the level of the
neck of the radius

6. COURSE
• Passed downwards and laterally beneath
brachioradialis muscle
• Resting on the deep muscle of fore arm
• On its middle third the radial nerve lies lateral
sides
• Distal fore arm : lies anterior surface of radius
: only covered by skin fascia
: here artery lateral side
(tendon brachioradialis)
medial sides (flexor carpi radialis)

7. COURSE
• Leave fore arm by winding lateral aspect of
wrist to reach posterior of the hand.
Beneath tendon abductor pollicis longus and
extensor pollicis brevis
Lie on lateral ligament of joint
• on reaching dorsum
descends beneath extensor pollicis longus
Reach 2 heads of forst dorsal interosseous muscle
Artery turn forwards entering palm of hand

8. Branches of Radial Artery
• Radial recurrent artery
– Arises below the elbow
– Run upward deep into brachioradialis
– Anastomosing with radial collateral artery (branches
of profunda brachii artery)
• Dorsal carpal branch
– Forms dorsal carpal arch with branch of ulnar artery
• Muscular branches
– Given to the lateral muscle of forearm

9. • Palmar carpal branch
– Arises near lower border of the pronator
quadratus
– Run medially deep to the flexor tendon
– End by anastomosing with the palmar carpal
branch of ulnar artery.
• Superficial carpal branch
– Arises just before the radial artery leaves the
forearm by winding backwards.
– Passes through the thenar muscle
– Ends by joining the terminal part of the ulnar
artery to complete superficial palmar arch.

11. ANASTOMOSIS

12. DEEP PALMAR ARCH
• Direct continuation of radial artery
• Medially curve beneath long flexor tendon, in front of the
metacarpal bone and interroseous muscle
• Arch completed on medial side by deep branch of ulnar
artery
• Arch curve lies at level with the proximal border of the
extended thumb
• Send branches
a) Superiorly : taking part of anastomosis along wrist joint
b) Inferiorly : to joint the digital branches of superficial
palmar arch

14. Clinical Importance of Radial Artery
• Usually uses by the clinician to measure the
radial pulse.
• Radial pulse can be uses to estimate the blood
pressure as it indicate the systolic blood
pressure of at least 70mmHg.
• It also uses for coronary artery bypass
grafting.