Question

How do bones, muscles, and joints work together?

Answer 1

Hint: Bones, muscles, and joints together are essential for the mobility of the body. Bones laid down the basic fundamental of the body structures. While muscles and joints provide mobility to these bones and help us move from one place to another.

Complete answer:
-Bones: Bones laid the basic foundation of a body. All bones together form the skeleton system of the body. in newborns and a child, these bones are soft because they are made up to flexible cartilage. But within some days or weeks, they start ossifying and the process is called ossification. And in growing adolescents, there are growing platings which provide the growth to the bones. Bones are made up of calcium, phosphorus, sodium, and other minerals, as well as the protein collagen. Calcium is needed to make bones hard, which allows them to support your weight.

-Muscles: Bones can not move alone, they require joints and muscles to move. Muscles provide force for flexion and extension. The flexor contracts to bend a limb at a joint. Then, when you’ve completed the movement, the flexor relaxes and the extensor contracts to extend or straighten the limb at the same joint. For example, the biceps muscle is a flexor while the triceps muscle is an extensor. It is done so the contraction of muscle fibers. The human body has as many as 600 muscles. Muscles are connected to bones by tendons and pull the bones. Muscles are always moving and co-ordinate our movement every sec.

-Joints: Joints act as pivot or hinge between bones. It provides movement between the two bones. It provides various kinds of movement between bones and is classified as such. For example hinge joints, pivot joints, ball and socket joints.

Note: There are some other kinds of joints that provide only partial movement or no movement - Cartilaginous or partially movement joints - their movement is restricted. They allow the bones to move only partially as they are linked to cartilage. For example, the joint between the spine.
Fibrous or immovable joint- they provide no movement. For example, joints present in the skull.