19 Questions
Which form of vitamin D is the most active?
Calcitriol
What is the function of calcitriol?
To absorb calcium
What does the acronym SHAPES stand for in relation to the functions of the skin?
Sensation, Heating, Absorption, Protection, Excretion, Secretion
What is one of the functions of the skin according to SHAPES?
To regulate body temperature
What modifies the activated molecule to produce calcitriol?
Renal enzymes
What is the acronym SHAPES used for?
To remember the functions of the skin
What is the role of hepatic enzymes in the production of calcitriol?
To modify the activated molecule
What is the role of renal enzymes in the production of calcitriol?
To modify the activated molecule
Which of the following is NOT a function of the skin?
Thermoregulation
What provides physical protection to the skin?
Keratin
What is the biological barrier to microorganisms in the skin due to?
Intercellular junctions
What are the vasoconstrictors that regulate thermoregulation in the skin?
Catecholamines
What are the vasodilators that regulate thermoregulation in the skin?
NO
What is the function of the extensive network of blood vessels in the skin?
Blood reservoir
What are the cutaneous sensations that the skin can perceive?
All of the above
What is the process by which the skin synthesizes vitamin D?
Activation of precursor molecules
Which enzyme modifies the activated molecule to produce calcitriol?
Renal enzymes
What is the primary function of calcitriol?
Promoting calcium absorption
What does the acronym SHAPES represent in relation to the functions of the skin?
Sensation, Heat regulation, Absorption, Protection, Excretion, Sweat production
Test your knowledge on the functions of the skin, including physical and chemical protection, thermoregulation, sensory information, secretion-excretion, and synthesis of vitamin D. Explore how the skin provides physical protection against wind, dehydration, UV rays, and trauma through pigments like melanin, lipids, keratin, and GAGs.
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