Every time you walk, settle into a chair, or hug your child, you're using your bones, muscles, and joints. Without these important body parts, we wouldn't be able to stand, walk, run, or even sit. Bones and What They Do From our head to our toes, bones provide support for our bodies and help form our shape.
Human skeleton The skeletal system serves many important functions; it provides the shape and form for the body, support and protection, allows bodily movement, produces blood for the body, and stores minerals.
Humans are born with over bones; however, many bones fuse together between birth and maturity.
As a result, an average adult skeleton consists of bones. The number of bones varies according to the method used to derive the count. While some consider certain structures to be a single bone with multiple parts, others may see it as a single part with multiple bones.
These are long bonesshort bonesflat bonesirregular bonesand sesamoid bones. The human skeleton is composed of both fused and individual bones supported by ligamentstendonsmuscles and cartilage. It is a complex structure with two distinct divisions; the axial skeletonwhich includes the vertebral columnand the appendicular skeleton.
This system acts as a protective structure for vital organs. Major examples of this are the brain being protected by the skull and the lungs being protected by the rib cage. Located in long bones are two distinctions of bone marrow yellow and red. The yellow marrow has fatty connective tissue and is found in the marrow cavity.
During starvation, the body uses the fat in yellow marrow for energy.
From the red marrow, erythrocytes, platelets, and leukocytes migrate to the blood to do their special tasks. Another function of bones is the storage of certain minerals.
Calcium and phosphorus are among the main minerals being stored. The importance of this storage "device" helps to regulate mineral balance in the bloodstream.
When the fluctuation of minerals is high, these minerals are stored in bone ; when it is low it will be withdrawn from the bone. Muscle The body contains three types of muscle tissue: On the anterior and posterior views of the muscular system above, superficial muscles those at the surface are shown on the right side of the body while deep muscles those underneath the superficial muscles are shown on the left half of the body.
For the legs, superficial muscles are shown in the anterior view while the posterior view shows both superficial and deep muscles. There are three types of muscles— cardiacskeletaland smooth.The following are problems that can affect the bones, muscles, and joints in teens: Arthritis.
Arthritis is the inflammation of a joint, and people who have it experience swelling, warmth, pain, and often have trouble moving. Joints bind the skeleton together, to give structure and allow muscles to move bones to perform certain tasks such as running, reaching and grasping.
There are many types of joints the most common of which are synovial joints. Joints are the areas where bones come together. They allow the skeleton to be flexible for movement. In a joint, bones do not directly contact each other. Instead, they are cushioned by cartilage in the joint, synovial membranes around the joint, and fluid.
Muscles provide the force and strength to move the body. Every time you walk, settle into a chair, or hug your child, you're using your bones, muscles, and joints. Without these important body parts, we wouldn't be able to stand, walk, run, or even sit.
From our head to our toes, bones provide support for our bodies and help form our shape. The skull. Bones don't work alone — they need help from the muscles and joints. Muscles pull on the joints, allowing us to move. They also help your body perform other functions so you can grow and remain strong, such as chewing food and then moving it through the digestive system.
Functions of Joints Joints connect bones within your body, bear weight and enable you to move. They are made up of bone, muscles, synovial fluid, cartilage and ligaments.