(1 point) The medial Collateral Ligament also known as the MCL is a band that runs in between the inner surfaces of the femur and the tibia. It endures forces acting starting on the outer surface of the knee which is called valgus forces, this stops the knee from collapsing inwards. The MCL has two parts; an inner part that
In a more detailed way, the hamstrings cross and act upon two joints, the hip and knee (--------------). The Semitendinosus and the Semimembranosus extend the hip when the trunk is fixed. The two muscles also bend the knee and rotate the lower leg when the knee is bent. As for the Bicep Femoris, a good example to explain its function is when an individual is walking. The long head of the bicep femoris ends the hip as we begin to walk.
3- Describe the [location, composition, and function] of the epiphyseal plate. The epiphyseal plate is located in the metaphysis and is composed of hyaline cartilage. It is the growth plate, it covers the part of the epiphysis where the bone forms an articulation with another bone. It reduces friction and absorbs shock in articular cartilage. In the periosteum it surrounds the bone surface wherever it is not covered by articular cartilage, it is a sheath of dense irregular connective tissue containing osteoblasts, it functions to protect the bone, assists in fracture repair, nourishes bone tissue, and serves as an attachment point for ligaments and tendons.
In the bicep curl which produces flexion at the elbow, the biceps muscle is the agonist, as seen in the image below. Fixator: is a muscle that stabilizes or fixes a part of the body to which a muscle in the process of moving another part is attached. Function Detail Provide movement The action of muscles allows you to change position and move around. Maintain posture Believe it or not, standing upright is a very difficult thing for the body to do due to the fact that gravity is pulling you down the only reason you stay standing is because of the actions of the muscles. Produce heat The
The procedure is used to help realign the kneecap to a more normal position and relieve pressure on the articular cartilage. In this procedure, the lateral retinaculum is cut and released; this allows the kneecap to return to proper tracking in the trochlear groove (Figure 10). The ligaments heal overtime, and scar tissue fills in the gap left by the surgery (25). In some cases, if a lateral release is not enough, ligament tightening procedures may be the next step for a severe patellar misalignment. This is where the surgeon may also need to realign the quadriceps mechanism, when the tendons on the inside edge of the knee (the medial side) may have to be tightened as well (26).
There are a few different types of joints in the human body such as ball and socket joints, hinge joints and pivot joints all which allow different types of movement. These joints are held together by muscles which work like levers to allow the bones at a joint to work like hinges. Muscles pull and move the bones at particular joints and this is what makes joints move thus the body moves. When supporting moving and positioning activities it is important to remember that muscles can only move joints as far as the joint allows. For example knees and elbow joints have limited movement and it is important to know how easy it is to these damage joints for example heaving people around a bed without using correct equipment or illegal lifting a person under their arms.
-tendons attach muscles to the bones - cartilage protects bones within joints. - synovial fluid: acts as lubricant - synovial membrane: secretes synovial fluid - ligament: joins bone to bone and is strong and flexible - muscle - fibrous capsule: encloses joints - pad of cartilage: gives additional protection - cartilage: absorbs synovial fluid and acts as shock absorber - bone - tendon: joins muscle to bone At a joint there is: Joints and movement continued 2 of 60 1 of 60 How do muscles work? - muscle is made up of bundles of muscle fibres, each fibre is a single muscle cell - each muscle cell is multinucleate (has more than one nucleus) this is because a single nucleus could not effectively control the metabolism of such a long cell. - Tendons connect muscle to bone - the muscle is made up of bundles of muscle fibres. these are bound together by connective tissue.
It plays the most important role in the extensor mechanism of the knee joint (3). The quadriceps tendons and patellar tendons link up with patella to serve the function. Extension of knee can be achieved by the tension between quadriceps and patella. Flexion of knee is limited by the quadriceps tendon. As a whole structure, patella becomes a pulley to generate force between patella-femoral joint in order to support the body against gravity
Muscles pull and move the bones at particular joints; this makes the joint move and therefore the body moves. When a muscle contracts, it pulls the bones at a joint in the direction that it is designed to move. With reduced mobility, muscles can become floppy and make movement slower and more difficult, but when muscles are used on a regular basis, they remain firm and move more easily. When supporting moving and positioning activities, it is important to remember that muscles can only move the bones at a joint as far as the joint allows. The Muscle Anatomy (http://anatomy.askthetrainer.com/) The Skeleton system (http://www.faqs.org/health/Body-by-Design-V2/The-Skeletal-System-Design-parts-of-the-skeletal-system.html) Nerve fibres run all the way through the body and send impulses to muscles, which enable the muscles to contract and relax.
These rods are connected at their base by the plantar fascia. When force is applied to the apex of the MLA, the arch depresses and the two rods separate then the tension is distributed throughout the plantar fascia. The main ligaments that aid in supporting the MLA are the long and short plantar ligaments and the calcaneonavicular ligament.