Many things can turn the skin reddish, including emotional responses and exercise. In each case, the direct cause of the red skin tone is ______.Multiple choice question.vasodilation of dermal blood vesselsthe decreased oxygen content of the bloodblood leaking from capillariesvasoconstriction of dermal blood vessels

What is the cause of the pinkish skin tone that occurs in light-complexioned people?Multiple choice question.color of well-oxygenated bloodchanges in the amount of melanin producedcolor of low-oxygenated blood

Redness and swelling in an infected area is due to:A large number of disease-causing microbes.Heat produced by the invading microbes.More rapid blood flow to the area.The skin producing defence cells.

When a person has a laceration and you see dark red blood, the blood vessel  that is damaged is the: a. Integumentary.b. Capillary. c. Vein. d. Artery.

What effect does visible light have on the skin?Question 26Select one:a.Causes sunburnb.Stimulates melanin productionc.Reduces blood circulationd.Induces dehydration

In many humans, exposing the skin to sunlight over prolonged periods of time results in the production of more pigment by the skin cells (tanning). This change in skin color provides evidence that (1) ultraviolet light can cause mutations (2) gene action can be influenced by the environment (3) the inheritance of skin color is an acquired characteristic (4) albinism is a recessive characteristic