Bassett Collection of Stereoscopic Images of Human Anatomy

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Dissection of plantar aspect of left foot

Nerve supply to dorsal interosseous muscles; interior of first metatarsophalangeal joint

Image #202-4

KEYWORDS: Bones joints cartilage, Foot and toes, Muscles and tendons, Peripheral nervous system.

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Dissection of plantar aspect of left foot

Nerve supply to dorsal interosseous muscles; interior of first metatarsophalangeal joint

The plantar interossei have been detached and removed from the dissection to provide a better view of the dorsal interossei and their nerves. In addition, the capsule of the first metatarsophalangeal joint has been opened by a wide incision to expose the interior of the joint.

1 .	Sesamoid bone
2 .	1st metatarsophalangeal articular capsule (opened)
3 .	Head of 1st metatarsal bone
4 .	Plantar metatarsal artery
5 .	Deep plantar branch of dorsalis pedis artery (joining plantar arch)
6 .	Perforating branch
7 .	Tarsometatarsal articular capsule
8 .	Medial cuneiform bone
9 .	Tuberosity of navicular bone
10 .	Tendon of tibialis posterior muscle (cut off)
11 .	Dorsal interosseous muscles
12 .	Branches of lateral plantar nerve to interosseous muscle
13 .	5th metatarsal bone
14 .	Flexor digiti minimi brevis muscle
15 .	Plantar arch
16 .	Deep branch lateral plantar nerve
17 .	Tendon of peroneus longus muscle (exposed within opened tendon sheath)
18 .	Long plantar ligament
19 .	Sesamoid fibrocartilage in tendon of peroneus longus
20 .	Calcaneocuboid plantar ligament