Frostbites are due to:
Correct answer: D. Vasoconstriction
- A. Fluid retention
- B. Vasodilation
- C. Muscular expansion
- D. Vasoconstriction
- E. Vascular contraction
Explanation
Vasoconstriction is the narrowing of blood vessels, which reduces blood flow and increases blood pressure. It can occur in response to cold temperatures, stress, or certain hormones, helping to regulate blood distribution and maintain body temperature.
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About Homeostasis
Homeostasis maintains a stable internal environment through the kidney and urinary system, thermoregulation and excretion. The kidney topics include filtration, selective reabsorption, urine formation and water balance, while thermoregulation involves sweating, vasodilation, vasoconstriction and hormonal control; excretion is different from egestion, which removes undigested food.
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