The musculoskeletal system consists of bones, muscles, ligaments and tendons, which together perform several functions:
• serve as a support for the body;
• protect internal organs;
• serve as a storage for mineral items
wines and produce blood cells;
• produce heat;
• participate in motor function. Dia
by forging the bones of the arms and legs, we can
move around, lift objects and
perform other actions. Small bones
hands and fingers allow you to perform
make the exact movements that are needed on
example, when writing. Small bones
feet facilitate walking;
• minerals accumulate in the bones
substances, and in the bone marrow
blood cells bleed.
By contracting and relaxing muscle tissue, body mobility is ensured. Muscles are attached to bones by tendons. When muscles work, heat is generated. Muscles provide protection for bones, nerves and blood vessels, acting as a protective sheath.

The brain, sending nerve impulses, gives orders to the muscles to perform motor actions. Muscle activity can be voluntary or involuntary. The brain controls involuntary muscle activities automatically, such as the heart, diaphragm and intestines. The heart beats at a rate of 60 to 80 beats per minute without any instructions from us. Voluntary movements of muscles, for example, legs and arms, are under the control of consciousness.
Skeleton
The skeleton is made up of 206 bones of varying sizes and shapes, forming a framework on which the body is formed. The skeleton protects vital internal organs and soft tissues. The skull and spine protect the brain and spinal cord. The ribs protect the heart and lungs. The bones, which can be seen or felt under the skin, are a guide to locating the internal organs.
Bones
Bones vary in size and configuration. They are most brittle where they change shape and usually break at these points.
Bones are tough, dense and durable tissue. Some bones serve to store and produce red blood cells. Bone fractures can cause bleeding and are of course painful. Such bleeding, if not stopped, can become a threat to the victim’s life.
Muscles
Muscles are soft tissues. In total, humans have more than 600 muscles. Most are skeletal muscles, which are attached to bones.
Unlike other soft tissues, muscles can relax or contract to allow the body to move. Through nerves, the brain sends orders to the muscles to perform certain movements. Skeletal muscles also protect bones, nerves and blood vessels. Most skeletal muscles are attached to a bone at each end by a tendon. Muscles and their tendons pass through joints. Control over the control of muscle activity can be impaired due to injuries to the brain and spinal cord, and nerve damage.
Joints
A joint is located at the junction of two or more bones.
Most joints are movable, although some are fused together to form homogeneous structures, such as the bones of the skull.
The joints are held together by ligaments. All joints are characterized by a certain range of motion. When a joint moves beyond its normal range of motion, it causes the ligaments in that joint to sprain or tear. When a ligament is sprained or torn, the joint becomes unstable and can be disabling. Unstable joints are more susceptible to re-injury.