Lane Medical Library

Bassett Collection of Stereoscopic Images of Human Anatomy

Volar aspect of forearm

Left palmaris longus muscle

Image #97-3

KEYWORDS: Fascia ligaments and tendons, Peripheral nervous system, Vasculature.

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Higher resolution images are available for a fee. Contact Drew Bourn, PhD, MLIS.

Volar aspect of forearm
Left palmaris longus muscle
The palmaris longus muscle is essentially absent in the right forearm shown in 97-1. Only a slender tendon extends into the antebrachial fascia. In the opposite forearm, shown here, the palmaris longus is well-developed. In addition, an accessory tendinous slip (10) extends proximally from the tendon of the palmaris longus to blend into the antebrachial fascia. The radial artery originates from the brachial artery at a high level.
1 . Biceps brachii muscle
2 . Radial artery
3 . Brachial artery
4 . Median nerve
5 . Brachialis muscle
6 . Pronator teres muscle (covered by lacertus fibrosus)
7 . Flexor carpi radialis muscle
8 . Brachioradialis muscle
9 . Palmaris longus muscle
10 . Accessory tendinous slip of palmaris longus muscle
11 . Superficial branch of radial nerve
12 . Flexor carpi radialis muscle (tendon)
13 . Palmaris longus muscle (tendon)
14 . Abductor pollicis brevis muscle
15 . Ulnar nerve
16 . Medial epicondyle of humerus
17 . Olecranon
18 . Flexor carpi ulnaris muscle (left pointer, ulnar head; right pointer, humeral head)
19 . Flexor digitorum superficialis
20 . Ulnar artery
21 . Palmar aponeurosis
22 . Palmaris brevis muscle

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