EPITHELIUM CONNECTIVE TISSUE SKIN
INTEGUMENT
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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tongue and forearm
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forehead and chin
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soles and palms
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ears and fingers
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Detailed explanation-1: -Fun fact: We have hair follicles covering just about every inch of our bodies. The only guaranteed hairless spots are the lips, the palms of the hands, and the soles of the feet. Given that ubiquity, it’s surprising that we don’t have more rogue hairs popping up in inconvenient or embarrassing spots.
Detailed explanation-2: -Hairless skin like palms and soles contains a natural inhibitor that blocks the WNT signalling pathway. The lack of or no hair on our palms and soles sets us apart from other mammals.
Detailed explanation-3: -Hair follicles and their keratinized product, hair, are skin appendages present on nearly every part of the body. Areas of the body typically devoid of hair include the palmar and plantar surfaces, lips, and urogenital orifices.