The overall material is much stronger - cartilage without associated supportive composite materials dissipates fractures and breakage, such that.That is generally much stronger than homogenous materials heterogeneous materials composed of many different elements,.Overall strength of the skeleton arises from a composite assemblage On different parts of the body will influence the structural material that Such stresses, or they may break or distort. The brain Altogether, bones and other skeletal materials must be resistant to protect against impact to soft tissues, such as the skull protects.
be strong at the junction where two bones meet, where stress is.remain strong under the stresses of locomotion, such as when theįeet strike the ground, sending the force of the impact through the body.support the mass of the body and all of the muscles and organs.withstand tremendous forces that affect an organism.These structural materials must be able to Two primary components are cartilage and bone, with additional supportĬoming from fibrous materials such as ligaments and tendons. The tissues that will go into the construction of skeletal elements. We will begin our discussion of the skeletal system by talking about This causes the ligaments of the outside regions of the ankle to be stressed or torn again, resulting in increased pain, swelling, and/or tenderness.Introduction to the skeletal system INTRODUCTION TO THE SKELETAL This injury typically occurs when the foot is fixed against an object and is thrown into the inverted position. A fracture usually occurs in severe circumstances where the bottom of the Fibula (outside region of the ankle) is separated or broken. This fall stretches some of the ligaments located along the outside region of the ankle, which usually results in increased pain, swelling, and tenderness.Īnother injury that can occur to the ankle is called a fracture. A typical ankle sprain occurs when a patient steps onto an uneven surface and falls, causing injury to the supportive ligaments of the ankle. This causes instability of the ankle joint. Along the outside regions of the ankle, the supporting ligaments can become stretched or torn (partially or completely). Injuries to the ankle joint is one of the most common in the body. The inside region of the ankle is the medial malleolus. This bone is specifically the bottom, outside portion of the Fibula. The bone that sticks out along the outside of the ankle is the lateral malleolus. What is the Bone that sticks out on the side of your Ankle? They contribute to your ability to walk, push off, and/or pivot to change directions.
These work together to allow for movement of the ankle and ankle. Many bones come together to form the various joints of the ankle/foot complex. The 2 cuneiform bones (lateral and middle) join the calcaneus to form the Calcaneocuboid joint. The two bones, the Cuboid, and Navicular bones, then join 3 smaller bones of the Cuneiform (lateral, middle, and medial). Similarly, the calcaneus joins the outer region of the foot at the Cuboid bone to form the Calcaneocuboid joint. Moving forward, towards the top and inside regions of the foot, the Talus joins together to form the Talonavicular joint at the Navicular bone. This region where the Talus and the Calcaneus come together creates the Subtalar joint. Along the bottom aspect of the Talus, this bone sits on the top of the Calcaneus or heel of the foot. These two bottom portions of the lower leg bones sit on top of the Talus, which form the tibiotalar joint. Involving about 7 major bones, the bones in the ankle are the bottom portions of the 2 lower leg bones the Tibia and Fibula. The ankle joint is located above the foot, where the lower leg and the top of the foot come together. By Bridget Bigale, PTA What are the 7 Bones in the Ankle?