from The Century Dictionary.
- Having the character of a malleolus: as, the malleolar process of the tibia.
- Of or pertaining to either malleolus: as, a malleolar artery.
from the GNU version of the Collaborative International Dictionary of English.
- adjective (Anat.) Of or pertaining to the malleolus; in the region of the malleoli of the ankle joint.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective Of or relating to the
Sorry, no etymologies found.
Near the ankle, arise on either side of the vessel two malleolar branches, internal and external, the former communicating with branches of the posterior tibial, the latter with those of the peronaeal.
The tibia is occasionally broken at its middle and lower thirds, but malleolar fractures are not common.
The lateral tarsal artery (a. tarsea lateralis; tarsal artery) arises from the dorsalis pedis, as that vessel crosses the navicular bone; it passes in an arched direction lateralward, lying upon the tarsal bones, and covered by the Extensor digitorum brevis; it supplies this muscle and the articulations of the tarsus, and anastomoses with branches of the arcuate, anterior lateral malleolar and lateral plantar arteries, and with the perforating branch of the peroneal artery.
The lateral malleolar net-work is formed by the anterior lateral malleolar branch of the anterior tibial, the lateral tarsal branch of the dorsalis pedis, the perforating and the lateral calcaneal branches of the peroneal, and twigs from the lateral plantar artery.
The medial tarsal arteries (aa. tarseæ mediales) are two or three small branches which ramify on the medial border of the foot and join the medial malleolar net-work.
The anterior lateral malleolar artery (a. malleolaris anterior lateralis; external malleolar artery) passes beneath the tendons of the Extensor digitorum longus and Peronæus tertius and supplies the lateral side of the ankle, anastomosing with the perforating branch of the peroneal artery, and with ascending twigs from the lateral tarsal artery.
The anterior and posterior malleolar folds extend from the prominence to the circumference of the membrane and enclose the pars flaccida.
The anterior medial malleolar artery (a. malleolaris anterior medialis; internal malleolar artery) arises about 5 cm. above the ankle-joint and passes behind the tendons of the Extensor hallucis longus and Tibialis anterior, to the medial side of the ankle, upon which it ramifies, anastomosing with branches of the posterior tibial and medial plantar arteries and with the medial calcaneal from the posterior tibial.
The arteries supplying the joint are derived from the malleolar branches of the anterior tibial and the peroneal.
The medial malleolar net-work is formed by the anterior medial malleolar branch of the anterior tibial, the medial tarsal branches of the dorsalis pedis, the posterior medial malleolar and medial calcaneal branches of the posterior tibial and branches from the medial plantar artery.