EVERYDAY SCIENCE

SCIENCE

SKELETAL SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Why are joints very important to our body?
A
They provide nutrition for us to be strong.
B
They allow movement and flexibility of the body.
C
They can get rid of toxic materials from our body.
D
They can protect us from getting infection.
Explanation: 

Detailed explanation-1: -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.

Detailed explanation-2: -Joints allow our bodies to move in many ways. Some joints open and close like a hinge (such as knees and elbows), whereas others allow for more complicated movement-a shoulder or hip joint, for example, allows for backward, forward, sideways, and rotating movement.

Detailed explanation-3: -It facilitates movement of various parts of our body. It protects the delicate and important internal organs.

Detailed explanation-4: -The joints help us to rotate our shoulder, bend our knees and elbows, swivel our neck and more. By definition, a joint is a point where two bones meet to provide a framework that permits movement. Bones are attached to one another by tissues called ligaments. Muscles are attached to bones through tendons.

Detailed explanation-5: -Strong ligaments (tough, elastic bands of connective tissue) surround the joint to give support and limit the joint’s movement. Ligaments connect bones together. Tendons. Tendons (another type of tough connective tissue) on each side of a joint attach to muscles that control movement of the joint.

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