What is a lateral malleolus in anatomy?
What is a lateral malleolus in anatomy?
Lateral malleolus: The bony prominence on the lateral side of the ankle joint. It is formed by the inferior end of the fibula. – The tubercle of the fifth metatarsal: The most prominent bony structure approximately at the middle of the lateral border of the foot.
What is the function of the medial malleolus and the lateral malleolus?
The medial malleolus is the medial projection of bone from the distal tibia. The lateral malleolus projects laterally from the distal fibula (Fig. 11.3). Both malleoli serve as the proximal attachments for the collateral ligaments of the ankle.
Which is more proximal the medial or lateral malleolus?
Lower Leg, Ankle, and Foot The lateral malleolus is palpated at the distal extent of the fibula. It should be noted that the lateral malleolus extends further distally and lies more posterior than the medial malleolus.
What is medial malleolus?
You probably know the medial malleolus as the bump that protrudes on the inner side of your ankle. It’s actually not a separate bone, but the end of your larger leg bone — the tibia, or shinbone. The medial malleolus is the largest of the three bone segments that form your ankle.
What ligament attaches to medial malleolus?
The deltoid ligament attaches the medial malleolus to multiple tarsal bones. Unlike the superficial layer of this ligament, the deep layer is intraarticular and is covered by synovium.
Is the lateral malleolus longer than the medial malleolus?
The lateral malleolus is found at the foot end of the fibula, of a pyramidal form, and somewhat flattened from side to side; it descends to a lower level than the medial malleolus.
What is the knob on your ankle called?
The most common fracture is to the bony bump on the outside of the ankle, the lateral malleolus. The lateral malleolus is the bottom of the fibula, the smaller lower leg bone. The bump on the inside of your ankle, the medial malleolus, is less commonly fractured.
What covers the medial malleolus?
What is the function of lateral malleolus?
Lateral Ligament The lateral ligaments stabilize the ankle, and serve as a guide to direct ankle motion by attaching the lateral malleolus to the bones below the ankle joint. They are responsible for resistance against inversion and internal rotation stress.
What is the lateral malleolus and what does it do?
The knob on the outside of the ankle, the lateral malleolus, is the end of the fibula, the smaller bone in the lower leg. When this part of the bone fractures, or breaks, it’s called a lateral malleolar fracture.
