Similar to the elbow, the ankle joint forms a hinge joint between the tibia and fibula in the lower leg and the talus bone in the foot. The medial malleolus of the tibia and the lateral malleolus of the fibula form a bony socket around the talus to limit the movement of the foot to one axis.
what type of joint is the vertebrae? cartilaginous joints
why is the ankle a hinge joint?
The Ankle. Your ankle joint is another type of hinge joint. Known as the talocrural region, this joint is responsible for the motion of your feet at the ankles. Like the knee joint, this hinge joint is rather unique in that it allows for some side to side movement.
What joints make up the ankle mortise?
The tibia and fibula form the so-called “ankle mortise” which consists of the medial and lateral malleoli. In the distal end of the ankle mortise sits the trochlea tali, the upper surface of the talus.
Is the ankle a gliding joint?
Gliding joints move with a gliding motion. The movement i.e. gliding joint movement that occurs between gliding joints is limited by the ligaments that hold the bones together. The primary places in the human body that you will find gliding joints are in the ankles, wrist, and spine.
How many bones are in an ankle?
Is the ankle a ball and socket joint?
Ball and socket ankle joint. A ball and socket ankle joint is a variant affecting the ankle where there is a rounded or spherical configuration to the talar dome with the corresponding concavity of the tibial plafond. The distal fibula may or may not be involved.
What is the protruding bone on ankle?
The bony bumps (or protrusions) seen and felt on the ankle have their own names: The medial malleolus, felt on the inside of your ankle is part of the tibia’s base. The posterior malleolus, felt on the back of your ankle is also part of the tibia’s base.
What is a pivot joint?
Pivot joint, also called rotary joint, or trochoid joint, in vertebrate anatomy, a freely moveable joint (diarthrosis) that allows only rotary movement around a single axis. The moving bone rotates within a ring that is formed from a second bone and adjoining ligament.
Where is the Tibiotalar joint?
The tibiotalar joint forms the junction between the distal tibia and fibula of the lower leg and the talus. The load-bearing aspect of this joint is the tibial-talar interface.
Where is a pivot joint found?
Pivot joints hold the two bones of the forearm together. That is, a pivot joint, located near the elbow, joins the bones of the forearm (called the ulna and the radius) to each other. These two bones are also joined to each other near the wrist by another pivot joint.
What is an example of a pivot joint?
A pivot joint is a type of synovial joint that rotates. Two examples of pivot joints in your body are the pivot joint in your neck that allows your head to rotate and the pivot joints between the radius and ulna that rotate your forearm.
What is the anatomy of the ankle?
The ankle is made up of two joints: The ankle joint and the subtalar joint. The ankle joint includes two bones (the tibia and the fibula) that form a joint that allows the foot to bend up and down. This is also called the ankle joint proper or the talocrural joint. It is a synovial hinge joint.
Which synovial joint is the most stable?
An example of them includes the shoulder joint. However, the most stable synovial joints correspond to ‘gliding joints’ as these joints only allow gliding movements along the bones like up and down or diagonally.