Problem

Which of these correctly describes a layer of the…

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Problem 18 Hard Difficulty

Which of these is a function of skin?
a. temperature regulation
b. manufacture of vitamin D
c. collection of sensory input
d. protection from invading pathogens
e. All of these are correct.

Answer

(e) All of these are correct

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Biology

Chapter 31

Animal Organization and Homeostasis

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Dr. Bridgette D.

University of North Carolina at Wilmington

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Problem 18

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Video Transcript

already. So Chapter 31 problem 18. We're looking at the functions of skin. So if he wanted to really quick sort of draw what? What that might be? You maybe let this be the subcutaneous layer, and then this top one being epidermis here. Right? So this is the epidermal ms the terminus and the subcutaneous. And and so one of the things that that exists in our skin here are going to be thes sweat glands. Right? And sweat pours and hope. Purpose of the sweat is to keep us cool. Um, should be hot. Right? So it certainly does help with temperature regulation, so it helps with temperature regulation you've already made. That is temp. Okay. And so I'm moving on here, then, Uh, one of the features of skin cells is when they're exposed to UV rays. So when they're exposed to UV rays, uh, this cells will actually produce or manufacture these precursor molecules that are then converted into a vitamin D. And so it does help manufacture vitamin D. All right, so we can see that both a m b r crack so far, but also hidden in here are these little sensory. Since your molecules and knees. Tell us when things are hot, you know out? Sure, if they're colder, there's a lot of pressure. Um and so the sensory nerves. Ah, those certainly help collecting that. That input rights. We can see that then C is correct. The collection of sensory input is a function of skin, and then another feature is that it protects, right. So the skin here is gonna be on the outside of the sailor muscle or muscle down here, past thesis of detainees layer. And any pathogens that might harm or muscle are gonna have to fight their way through. So we have ah, angle pathogen here. Hey, it's a sort of fight his way through this hole there first in orderto ticket to the good stuff. Right? Uh, and so that's why open wounds are could be problematic because they offer a pathway for pathogens. But this get itself having skin is is this nice little blanket that surrounds some of our more sensitive organ systems and tissues. And so So the correct answer here for problem 18 is gonna be e skin does all of the above it. Hey,

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