However, with motion you must know about levers. The framework of the body is covered in muscle which permits movement. When moving or lifting a heavy load, it’s easier to use levers, and in the body it’s the exact same. All levers use 5 different parts; Lever, Fulcrum, Muscle force, Resistive force and Torque. Lever; almost always the bone Fulcrum; the pivot point of the lever in which is usually the joint.
What is a Ligament and how does it work? Ligament is a tough band of fibrous tissue that connects bone to bone or bone to cartilage and supports and strengthens joints. The main functions of ligaments are to keep the bones of the skeleton in a suitable alignment and prevent abnormal movements of the joints. What is a Tendon and how does it work? A tendon is tissue that connects muscles to bones.
2a Describe an example of a weight-bearing synovial joint and explain how this joint is well-suited to the function it performs. (Include a description of the type of joint, the movements that the joint allows, and the muscles that facilitate these movements) (2.1) An example of a synovial joint is the knee joint in which it is freely moveable. The knee joint is the largest joint in the body and is a hinge joint which is formed by the condyle of the femur and tibia and the surface which is named the patella. The hinge joint consists of one concave surface and one convex surface where one bone is able to fit into the other bone is has a synovial cavity to reduce friction of the joint during movement. The ends of the bone are covered with smooth articular cartilage; this acts as a sponge and also reduces friction when the joint is moving.
Brock Perry HPE295 Grier Gatlin Muscle Fibers Our body is composed of many different groups of muscles and each person has a unique composition of muscle tissue in their body. Different types of athletes usually have one predominant type of muscle fiber, that being the kind that suits their sport the best. Each one has it's own characteristics and is suited to a particular type of movement. Another way to classify these fiber types is by their contractile and metabolic properties, thereby dividing them into slow and fast twitch fibers. The first type of fiber we will look at is the type I, or slow twitch fibers.
The objective of this case study is to learn more about RCL injuries and describe the recovery process of an athlete with this injury and returns to play. Anatomy: The thumb is the most unique of all the fingers. It contains only two bones in it called phalanges. Despite having one less phalange, the thumb has the most mobility and range of motion. There are three joints of the thumb carpometacarpal, interphalangeal, and metacarpophalangeal.
This type of joint is one of six synovial joints called the ball and socket joint. A synovial joint is a freely moveable joint with distinctive features. They all have a smooth cartilage covering the ends of the bones and a double layered capsule which encloses the joint cavity. The outer layer is tough and is used for protection against excessive movement in lots of directions, while the inner layer is used to release synovial fluid to help lubricate the joint during motion. This part of the capsule is known as the synovial membrane.
The AC joint allows the ability to raise the arm above the head. This joint functions as a pivot point (although technically it is a gliding synovial joint), acting like a strut to help with movement of the scapula resulting in a greater degree of arm rotation. The AC joint is stabilized by 3 ligaments; the acromioclavicular ligament, the coracoacromial ligament, and the coracoclavicular ligament. The acromioclavicular ligament attaches the clavicle to the acromion of the scapula. There are two parts to this ligament; superior and inferior.
Introduction Weight training is a common type of strength training for developing the strength and size of skeletal muscles. It uses the force of gravity to oppose the force generated by muscle through concentric or eccentric contraction. Weight training uses a variety of specialized equipment to target specific muscle groups and types of movement. Weight training differs from bodybuilding, Olympic weightlifting, powerlifting, and strongman, which are sports rather than forms of exercise. Weight training, however, is often part of the athlete's training regimen.
Biomechanics refers to the study of the mechanics of a living body, especially of the forces exerted by muscles and gravity on the skeletal structure. When performing a dig there are lots of biomechanical factors the need to be taken into account as this is an essential skill if you are in a volleyball team. The point of a forearm pass in volley ball is to hit the ball to the setter which is at the front of the court. This shot requires very good timing, amount of force applied and position of arms when hitting the ball. When getting ready to dig a ball many aspects and principles of biomechanics are taken into account.
The brain, eyes, heart, lungs and spinal cord are all protected by your skeleton. Your cranium skull protects your brain and eyes, the ribs protect your heart and lungs and your vertebrae spine, backbones protect your spinal cord. Bones provide the structure for muscles to attach so that our bodies are able to move. Tendons are tough inelastic bands that hold attach muscle to bone. There are many differences between the male and female human skeletons.