I WONDER - How Do Joints Move Freely? Me Pregunto - Cómo Se Mueven Libremente Las Articulaciones?

The video explains how joints function similarly to door hinges, requiring lubrication to move smoothly. Unlike hinges that need external oil, joints produce their own lubricant called synovial fluid, which facilitates free movement.

What is the primary function of the liquid produced by joints?

• To provide nutrients

• To cool down the body

• To lubricate the joints

• To strengthen the bones

How is the lubrication of joints similar to that of a door hinge?

• Both require regular cleaning

• Both need to be replaced frequently

• Both need lubrication to function smoothly

• Both are made of metal

Why is it important for joints to be lubricated?

• To ensure they move without friction

• To make them grow faster

• To prevent them from overheating

• To change their shape

What happens when a door hinge squeaks?

• It needs to be replaced

• It is perfectly normal

• It requires oil to stop the noise

• It is broken

What is the special fluid called that helps joints move freely?

• Synovial fluid

• Lymphatic fluid

• Gastric fluid

• Cerebrospinal fluid