Explanation

The skeleton provides a framework that supports and protects internal organs, such as:

• The skull protects the brain
• The ribcage protects the heart and lungs
• The spine protects the spinal cord
• The pelvis protects the reproductive organs

Explanation

• The skin is the body's first line of defense against external pathogens, such as harmful germs and diseases.
• It acts as a physical barrier, preventing them from entering the body and causing infection or illness.

Explanation

Teeth perform two main functions:

• Chewing (breaking down food into smaller pieces).
• Grinding (crushing and pulverizing food).

Explanation

Permanent teeth are also known as:

• Adult teeth
• Secondary teeth

Explanation

Primary teeth are also known as:

• Baby teeth
• Milky teeth
• Deciduous teeth

Explanation

The skin is sensitive to:

• Temperature (hot and cold)
• Touch (light and heavy pressure)
• Pressure (firm and gentle)
• Pain (sharp and dull)

Explanation

• The skin is the largest organ of the body, covering the entire surface of the body. 
• It has a total area of about 22 square feet (2 square meters).
• It weighs around 6 pounds (2.7 kilograms) in adults.

Explanation

• The skin is the outermost layer of the body, covering and protecting the internal organs, muscles, and skeleton.
• It acts as a barrier against external damage, infection, and disease.
• It helps to regulate body temperature, aid in the production of vitamin D, and facilitate the senses of touch and feel.

Explanation

• The skeleton provides support and protection for the human body and its internal organs. 
• It forms a framework that supports the body's muscles, organs, and tissues.
• It forms a framework that protects vital organs such as the brain, heart, and lungs.

Explanation

• The skeleton and muscles work together to support your body and move it forward.
• The skeleton provides the structural framework and support.
• The muscles contract and relax to move the bones and facilitate movement.