Classification Of Joints

1 . Describe the Major bones, muscles,joints and joint actions used to perform this movement skill and how they influence the way the body moves.

to contract, which then allows body movements and functions? There are two types of muscles in

Your vertebrae are individual little bones that make up the spinal column, these are connected together by joints which are supported by ligaments that are connected to the bone.

The left metatarsophalangeal and interphalangeal (great and lesser toes) joints are held at slight flexion pressed against the ground by a concentric contraction of the flexor halluces longus, flexor digitorum longus, flexor digitorum longus. The left talocrural (ankle) is plantar flexed using a concentric contraction of the gastrocnemius and the soleus. The right talocrural (ankle) is plantar flexed by a concentric contraction of the tibialis anterior, extensor digitorum longus, peroneus tertius. The left tibiofermoral (knee) joints are being extended by a concentric contraction of the quadriceps muscles (rectus femoris, vastus lateralis, vastus medialis, vastus intermedius). The right metatarsophalangeal and interphalangeal (great and lesser toes) are being held plantar flexed due to an isometric contraction of the flexor halluces longus, flexor digtorum longus. The right tibiofermoral (knee) joints are flexed at a 90-degree angle by a concentric contraction of the biceps femoris, semitendinous, semimembranosus. During this phase the left acetabular fermoral (hip) joint is flexed due to an eccentric contraction of the rectus femoris, pectineus, iliacus, and psoas. The right acetabular fermoral (hip) joint is at slight extension due to a concentric contraction of the biceps femoris, semitendinosus, semimembranosus, and the gluteus

during these movements, the angles of those joints, as well as the muscles involved during the

Jumping (bilateral): Hip and knee is in extension, while ankle is in plantar flexion, and shoulder abduction and flexion while in the air.

These types of joints are considered plane joints because they permit back-and-forth and side-to-side movements between the flat surfaces of the bones, but they may also rotate against one another.

The contraction of the extent which the The direction which the bone of the joint move depends on the contraction of the muscle.

Shoulder flexion/extension; Elbow flexion and extension; Use of the lower and upper back. Muscles involved include the latissimus dorsi, rhomboids, trapezius, deltoids and the pectorals.

Ligament - Ligaments determine how much the joints can move so each joint is stabilized.

Joints are the connecting points where two bones meet. They allow the human body to be flexible. Muscles are also necessary for movement. They pulls bones are allow them to move. Tendons attach muscles to bones while ligaments attach bones to bones. The central nervous system stimulates muscles to contract when they are stimulated by “messages”, or impulses, that are sent from motor nerves and the bursae are fluid filled sacs between joints that provide protection

There are about 600 muscles in the body working together to create movement. Muscle contractions pull both ends of the muscle towards one another. One bone attached to each muscle is always more stabilized than the other. The less stabilized bone moves during muscle contraction due to the weaker stability. The points of attachment determine which bone will move. The least movable part is called the origin; it is the part that attaches closer to the midline of the body. This leaves the most movable part called the insertion. Each of these points can be identified in individual muscles to assist trainers in understanding how the muscles and joints work together to create motion.

The shoulder is a ball and socket joint which allows it a flexion and extension motion.

The knee is a hinge-type, diarthrotic, or freely moveable joint. Also referred to as a synovial joint, the 2 articulating ends of bone are encased in a capsule that lubricates the joint with synovial fluid to reduce friction.

Synovial joints are the most common joints in the skeletal system and are also known as the freely moveable joints. They are not directly connected which is why it allows a great amount of movement. As with most other joints in the body, synovial joints achieve more movements. The synovial joints consist of six different types of joints.