Foot

First Metatarsal

First Metatarsal The structure indicated is the first metatarsal bone of the foot. The foot contains three groups of bones: Tarsals Metatarsals Phalanges There are 7 tarsal bones, and 5 metatarsals. The metatarsals are numbered from 1 to 5 from medial to lateral, with the first metatarsal belonging to that of the great toe (hallux) and the 5th metatarsal belonging to that of the little toe. The metatarsals consist of the following parts: Base Shaft Head Learn more about the anatomy of the bones of the foot in this anatomy tutorial.
first metatarsal

Talus

Talus The structure indicated is the talus bone of the foot. The foot contains three groups of bones: Tarsals Metatarsals Phalanges The talus is one of seven tarsal bones. There are three groups of tarsal bones: Proximal group Intermediate group Distal group There are two bones in the proximal group of tarsal bones: the talus and the calcaneus. The calcaneus is the largest tarsal bone and forms the heel through its posterior projection. The talus articulates with the medial malleolus of the tibia and the lateral malleolus of the fibula to form the ankle joint. In addition, it articulates with …

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Talus

Cuboid Bone

Cuboid Bone The structure indicated is the cuboid bone of the foot. The foot contains three groups of bones: Tarsals Metatarsals Phalanges The cuboid bone is one of seven tarsal bones. There are three groups of tarsal bones: Proximal group Intermediate group Distal group The cuboid bone belongs to the distal group of tarsal bones. There are four bones in the distal group: Lateral cuneiform Intermediate cuneiform Medial cuneiform Cuboid The cuboid bone is the most lateral bone in the distal row of tarsal bones, it is named on the basis of its shape which roughly resembles a cube. The …

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cuboid bone

Medial Cuneiform Bone

Medial Cuneiform Bone The structure indicated is the medial cuneiform bone of the foot. The foot contains three groups of bones: Tarsals Metatarsals Phalanges The medial cuneiform bone is one of seven tarsal bones. There are three groups of tarsal bones: Proximal group Intermediate group Distal group The medial cuneiform bone belongs to the distal group of tarsal bones. There are three cuneiform bones: Lateral cuneiform Intermediate cuneiform Medial cuneiform Anteriorly they articulate with the medial three metatarsals. Posteriorly they articulate with the navicular bone, and laterally they articulate with the cuboid bone. Learn more about the bones of the …

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medial cuneiform

Intermediate Cuneiform

Intermediate Cuneiform The structure indicated is the intermediate cuneiform bone of the foot. The foot contains three groups of bones: Tarsals Metatarsals Phalanges The intermediate cuneiform bone is one of seven tarsal bones. There are three groups of tarsal bones: Proximal group Intermediate group Distal group The intermediate cuneiform bone belongs to the distal group of tarsal bones. There are three cuneiform bones: Lateral cuneiform Intermediate cuneiform Medial cuneiform Anteriorly they articulate with the medial three metatarsals. Posteriorly they articulate with the navicular bone, and laterally they articulate with the cuboid bone. Learn more about the bones of the foot in …

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intermediate cuneiform

Extensor Digitorum Brevis

 Extensor Digitorum Brevis The structure indicated is the extensor digitorum brevis muscle. This muscle is the only intrinsic muscle of the foot located on the dorsal aspect, and serves to extend digits 2 to 4. Origin: Superolateral calcaneus Insertion: Base of proximal phalanx of great toe, lateral portion of tendons of extensor digitorum longus of toes 2 – 4. Action: Extension of great toe at MTP joint. Flexion of toes 2 – 4. Innervation: Deep fibular nerve. Learn more about the anatomy of the foot muscles in this tutorial.
extensor digitorum brevis

Posterior Inferior Tibiofibular Ligament

Posterior Inferior Tibiofibular Ligament The structure indicated is the posterior inferior tibiofibular ligament. The distal ends of the tibia and the fibula are held together by the inferior portion of the interosseous membrane. The interosseous membrane is the membrane which joins the tibia to the fibula along its entire length, separating the leg into anterior and posterior compartments. There are two apertures within the interosseous membrane proximally and distally which allow vessels to pass from one compartment to the other. In addition to the attachment of the interosseous membrane inferiorly between the distal tibia and fibula, this inferior articulation is …

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posterior inferior tibiofibular ligament

Flexor Hallucis Brevis

Flexor Hallucis Brevis The structure indicated is the flexor hallucis brevis muscle of the foot. The intrinsic muscles on the plantar aspect of the foot are divided into four layers. The flexor hallucis brevis muscle is located in the third layer of intrinsic foot muscles. There are three muscles located in this layer: Flexor hallucis brevis Adductor hallucis Flexor digiti minimi brevis The flexor hallucis brevis muscle splits into two parts which insert onto the medial and lateral aspects of the base of the first phalanx of the great toe. Origin: Plantar surface of cuboid and lateral cuneiform bone Insertion: Lateral and medial sides of …

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flexor hallucis brevis

Inferior Extensor Retinaculum

Inferior Extensor Retinaculum The structure indicated is the inferior extensor retinaculum. Retinacula (retinaculum singular) are bands of connective tissue which surround tendons and hold them in place. They function to stabilise tendons as the muscles to which they attach contract to cause movement. There are retinacula in the wrist, ankle and knee. In the ankle, there is the flexor retinaculum, the peroneal retinacula and on the extensor surface, there is the superior and inferior extensor retinacula. The superior retinaculum is situated distally in the leg just above the ankle joint, attaching to the anterior aspects of the fibula and tibia. …

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Inferior extensor retinaculum

Flexor Digiti Minimi Brevis

Flexor Digiti Minimi Brevis The structure indicated is the flexor digiti minimi brevis muscle of the foot. The intrinsic muscles on the plantar aspect of the foot are divided into four layers. The flexor digiti minimi brevis muscle is located in the third layer of intrinsic foot muscles. There are three muscles located in this layer: Flexor hallucis brevis Adductor hallucis Flexor digiti minimi brevis Origin: Base of 5th metatarsal Insertion: lateral base of proximal phalanx of little toe Action: flexes little toe at metatarsophalangeal joint Innervation: lateral plantar nerve   Learn more about the anatomy of the foot muscles in …

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flexor digiti minimi brevis