Which of the following is NOT a function of the skin?<\/p>\n\n\n\n
Select one:<\/p>\n\n\n\n
a. Production of Vitamin D
b. Protection against microbes
c. Water absorption
d. Temperature regulation
e. Collection of sensory information<\/p>\n\n\n\n
The correct answer and explanation is :<\/strong><\/mark><\/p>\n\n\n\n The correct answer is: c. Water absorption<\/strong><\/p>\n\n\n\n The skin, also known as the integumentary system<\/strong>, is the body\u2019s largest organ and serves multiple critical functions that are essential for maintaining health and homeostasis. Let\u2019s break down the options to understand why “water absorption”<\/strong> is not<\/em> considered a function of the skin.<\/p>\n\n\n\n This is<\/em> a function of the skin. When the skin is exposed to ultraviolet B (UVB) rays<\/strong> from sunlight, it synthesizes vitamin D3 (cholecalciferol)<\/strong> from cholesterol. This vitamin is essential for calcium absorption, bone health, and immune function.<\/p>\n\n\n\n This is<\/em> another key function. The skin acts as a physical barrier<\/strong>, preventing the entry of harmful microorganisms<\/strong> such as bacteria, viruses, and fungi. The acidic pH<\/strong>, natural oils<\/strong>, and the immune cells<\/strong> within the skin (like Langerhans cells) further contribute to this protective role.<\/p>\n\n\n\n This is NOT<\/strong> a function of the skin. The skin is designed to be waterproof<\/strong>, largely due to the outermost layer called the stratum corneum<\/strong>, which contains keratin<\/strong> and lipids<\/strong>. This structure prevents water from entering or exiting the body excessively<\/strong>. While skin can absorb very small amounts of moisture, it does not play a significant role in overall body hydration. In fact, one of the skin\u2019s main jobs is to prevent water loss<\/strong>, not absorb water.<\/p>\n\n\n\n The skin helps regulate body temperature through sweat production<\/strong> and vasodilation<\/strong> or vasoconstriction<\/strong> of blood vessels in the dermis. When the body is hot, sweat is released to cool it down. When cold, blood vessels constrict to conserve heat.<\/p>\n\n\n\n The skin contains sensory receptors<\/strong> that detect touch, pressure, pain, and temperature. These receptors send signals to the brain, allowing us to sense our environment.<\/p>\n\n\n\n In summary, while the skin performs numerous vital functions, water absorption is not one of them<\/strong>. Its structure is specifically designed to prevent excessive water entry and loss<\/strong>, which is essential for maintaining fluid and electrolyte balance<\/strong> in the body.<\/p>\n","protected":false},"excerpt":{"rendered":" Which of the following is NOT a function of the skin? Select one: a. Production of Vitamin Db. Protection against microbesc. Water absorptiond. Temperature regulatione. Collection of sensory information The correct answer and explanation is : The correct answer is: c. Water absorption Explanation: The skin, also known as the integumentary system, is the body\u2019s […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-40","post","type-post","status-publish","format-standard","hentry"],"_links":{"self":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/40","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/comments?post=40"}],"version-history":[{"count":1,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/40\/revisions"}],"predecessor-version":[{"id":41,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/posts\/40\/revisions\/41"}],"wp:attachment":[{"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/media?parent=40"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/categories?post=40"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gaviki.com\/blog\/wp-json\/wp\/v2\/tags?post=40"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}Explanation:<\/h3>\n\n\n\n
\n\n\n\na. Production of Vitamin D<\/strong><\/h3>\n\n\n\n
\n\n\n\nb. Protection against microbes<\/strong><\/h3>\n\n\n\n
\n\n\n\nc. Water absorption<\/strong><\/h3>\n\n\n\n
\n\n\n\nd. Temperature regulation<\/strong><\/h3>\n\n\n\n
\n\n\n\ne. Collection of sensory information<\/strong><\/h3>\n\n\n\n
\n\n\n\n