What happens to the blood vessels in the dermis during physical activity?

• They dilate to regulate heat.

• They constrict to conserve heat.

• They remain unchanged.

• They become less visible.

Tags

NGSS.HS-LS1-3

Why does the skin appear redder during exercise?

• Increased blood flow to the skin.

• Decreased blood flow to the skin.

• The skin produces more melanin.

• The skin absorbs more oxygen.

Tags

NGSS.HS-LS1-3

What is a potential complication of restricted blood supply to the skin?

• Decubitus ulcers (bedsores).

• Increased skin elasticity.

• Improved skin tone.

• Enhanced skin hydration.

How does regular physical activity affect the cardiovascular system?

• Strengthens the heart and improves circulation.

• Weakens the heart and reduces circulation.

• Has no effect on the cardiovascular system.

• Causes irregular heartbeats.

What is the primary reason for increased blood flow to the skin during exercise?

• To dissipate heat and prevent overheating.

• To increase oxygen absorption.

• To enhance skin color.

• To reduce skin sensitivity.

Tags

NGSS.HS-LS1-3