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  • This portion of the course is going to cover the integumentary system.

  • Now this is a term that most of you have probably never heard of before.

  • I hadn't heard of it until, honestly, I started in teaching anatomy.

  • Really it's something that we are all familiar with though.

  • Integumentary system stands for the skin, as well as the underlying fat,

  • which we all know in different areas varies considerably.

  • So the anatomy faculty and I really decided that we wanted to start with

  • this potion of the course first.

  • Because this is the area that most people are familiar with.

  • It's something that we interact with on a daily basis.

  • And also, it's very clinically relevant.

  • If you think about a little kid that's been in the pool and their lips turn blue,

  • that's giving you an indication that something is going wrong inside.

  • So, a very clinically relevant area of the body.

  • Well the Integumentary System is composed of three different layers.

  • Like I was saying before, it's composed of the skin.

  • The skin is the epidermis and the dermis.

  • These are the two most superficial layers.

  • Epidermis is what you see when you're looking at another individual.

  • You've probably heard the joke, your epidermis is showing.

  • Right underneath is the subcutaneous layer.

  • This is composed of variable amounts of fat.

  • In the abdomen you have considerable more fat than you would have

  • in the neck region.

  • So very dependent on the individual as well as the area of the body.

  • So not only are we gonna discuss the different layers of the integumentary

  • system, we are gonna discuss the components within.

  • In particularly withing the dermal layer.

  • It's actually fairly complex both in terms of vasculature

  • as well as other components.

  • Specifically we have different glands.

  • We have sweat glands as well as oily glands.

  • We're going to have sensory receptors.

  • So this would give indications from the external environment.

  • If something is tickling you or something is causing pain, these sensory receptors

  • will be will be utilized to get that information back

  • to the central nervous system.

  • And lastly you're going to have hair roots within that are going to extend through

  • the epidermis.

  • So we're going to continue this discussion throughout the different layers of the skin

  • and the next section we're going to discuss the

  • functions of the integumentary system.

This portion of the course is going to cover the integumentary system.

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B1 中級

インターグメンタリーシステム.イントロダクション (Integumentary System: Introduction)

  • 39 1
    Amy.Lin に公開 2021 年 01 月 14 日
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