Understanding Human Body Reactions

What is the scientific term for the reflex that causes goosebumps?

• Pilomotor Reflex

• Pillow Motor Reflex

• Piloaction Reflex

• Piloerection Reflex

Why does our skin wrinkle when exposed to water for a long time?

• The skin absorbs water and expands

• The skin loses its oils and absorbs water

• The skin contracts due to cold water

• The skin cells die and shrink

What happens to the skin on fingers and toes when exposed to water for a long time?

• It becomes smoother

• It wrinkles due to thicker skin layers

• It dries out completely

• It becomes more elastic

What chemical is responsible for the color of our hair?

• Collagen

• Keratin

• Elastin

• Melanin

How is the aging of hair color primarily determined?

• By diet and nutrition

• By hair care products

• By exposure to sunlight

• By genetic factors

What is the term for the sound your stomach makes when it growls?

• Borborygmi

• Gurgling

• Rumbling

• Churning

Why does our mouth water when we are hungry?

• To hydrate the mouth

• To prepare for digestion

• To cool down the body

• To signal thirst

Which part of the brain is responsible for involuntary actions like salivation?

• Cerebellum

• Hypothalamus

• Medulla Oblongata

• Cerebrum

What triggers an allergic reaction in the body?

• Excessive exposure to sunlight

• A deficiency in vitamins

• A virus attacking the immune system

• The body mistaking a harmless substance as a threat

What is the primary function of a scab?

• To prevent itching

• To protect the wound from germs

• To reduce pain

• To speed up blood flow