SUPERFICIAL PALMAR ARCH
Superficial branch of ulnar
artery and superficial branch of radial artery
arch is formed mainly by the superficial branch
of ulnar artery with contribution from
superficial branch of radial artery. It is
superficial to the deep arch. It gives common
digital branches to the fingers.
arch is responsible for providing digital arteries as follows.
Beginning from its most medial part, it gives off the first branch
which is the proper digital artery to the medial aspect of the little
second branch is the common digital artery which divides into two
branches at the interdigital cleft between the little and the ring
fingers. It divides into proper digital arteries at this cleft so that
the most medial runs on the lateral border of the little finger and the
lateral runs on the medial border of the ring finger supplying these
third branch is the common digital artery which supplies the ring and
middle fingers. It is the common digital artery to these fingers which
divide at their interdigital cleft to form proper digital artery to the
lateral border of the ring finger and proper digital artery to the
medial border of the middle finger.
Fourth branch is the common digital artery which runs to the
interdigital cleft between the middle and index fingers. It then divides
into proper digital arteries which run at the lateral border of eh
middle finger and also at the medial border of the index finger.
fifth branch sometimes exists which supply the index finger but they
supply of the index and thumb is mostly provided by the deep palmar
Human Anatomy Laboratory
Creatro: Oluwole Ogunranti
Layers of palm links