First metatarsal bone
| Bone: First metatarsal bone |
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| The first metatarsal. (Left.) |
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| Bones of the right foot. Dorsal surface. |
| Latin |
os metatarsale I |
| Gray's |
subject #64 272 |
The first metatarsal bone is the bone in the body of the foot just behind the big toe.
It is remarkable for its great thickness, and is the shortest of the metatarsal bones.
The body is strong, and of well-marked prismoid form.
The base presents, as a rule, no articular facets on its sides, but occasionally on the lateral side there is an oval facet, by which it articulates with the second metatarsal.
Its proximal articular surface is of large size and kidney-shaped; its circumference is grooved, for the tarsometatarsal ligaments, and medially gives insertion to part of the tendon of the Tibialis anterior; its plantar angle presents a rough oval prominence for the insertion of the tendon of the Peronæus longus.
The head is large; on its plantar surface are two grooved facets, on which glide sesamoid bones; the facets are separated by a smooth elevation.
Additional images
This article was originally based on an entry from a public domain edition of Gray's Anatomy. As such, some of the information contained herein may be outdated. Please edit the article if this is the case, and feel free to remove this notice when it is no longer relevant.
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Bones of lower limbs |
| Femur |
head of femur (fovea capitis femoris) · neck of femur · greater trochanter · trochanteric fossa · lesser trochanter · tubercle of the femur · intertrochanteric line · intertrochanteric crest · linea quadrata
body (linea aspera, third trochanter, pectineal line, adductor tubercle)
lower extremity (lateral condyle, medial condyle, lateral epicondyle, medial epicondyle, patellar surface) |
| Tibia |
| upper extremity |
medial condyle · lateral condyle · intercondyloid eminence · tuberosity of the tibia · posterior intercondyloid fossa · anterior intercondyloid fossa |
| body |
soleal line |
| lower extremity |
medial malleolus |
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| Fibula |
head of fibula · body of fibula · lateral malleolus |
| Tarsus |
calcaneus (sustentaculum tali, trochlear process) · talus · navicular · cuboid · cuneiform (medial, intermediate, lateral) |
| Metatarsus |
1st metatarsal · 2nd · 3rd · 4th · 5th |
| Other |
patella · phalanges of the foot |
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