Human Body Quiz

What is the largest organ in the body?

• Heart

• Liver

• Skin

• Brain

What function does sweat serve when you are too hot?

• It increases body temperature

• It cools the skin down

• It traps air to insulate the body

• It protects from foreign bodies

How does the body respond when you are too cold?

• Produces more sweat

• Vellus hairs stand upright to trap air

• Increases heart rate

• Expands blood vessels

Besides protecting from foreign bodies, what else does the skin protect us from?

• Excessive sunlight

• Water loss

• Extremes in temperature

• Bacterial infections

What are the three main layers of the skin?

• Epidermis, Dermis, Subcutaneous tissue

• Epidermis, Hypodermis, Muscle

• Dermis, Muscle, Bone

• Subcutaneous tissue, Muscle, Bone

Which layer of the epidermis is known as the protective outer layer?

• Stratum corneum

• Stratum lucidum

• Stratum granulosum

• Stratum spinosum

What is the function of the Stratum granulosum layer?

• It is the clear layer.

• It contains the protein, keratin.

• It is the base layer where new cells are produced.

• It is the immune layer of the skin.

Which layer of the epidermis is responsible for producing new cells and contains melanin?

• Stratum corneum

• Stratum lucidum

• Stratum spinosum

• Stratum germinativum

What is the primary function of the dermis layer?

• It stores fat to keep the body warm.

• It contains hair follicles and nerve endings.

• It acts as a barrier to external elements.

• It produces melanin for skin color.

Which of the following is found in the dermis layer?

• Fatty tissue

• Hair follicles

• Melanin

• Blood vessels