AC Integumentary System Day 1

Describe what you think is happening in the picture below. Be clear Integumentary System Notes The integumentary system is your skin.It also includes your glands, hair, and nails.The job of your integumentary system is to protect your insides and maintain homeostasis. Your epidermis is showing! There are several layers of the skin. The top layer called the stratum corneum is constantly flaking off and each layer underneath is slowly pushing up. The layer the layer that makes new cells is the stratum basale.The top layers are known as the epidermis and the bottom two layers are the dermis. The dermis is where tattoos are placed!Label the four layers below. corneum epidermis basale dermis The science of skin color The world in color. Skin color is determined by the amount of melanin that our cells make.Sunlight and DNA can trigger melanin production.Too much sun damages the skin making it leathery and depressing our immune systems.Too little sun prevents us from getting vitamin D. Take a look at the diagram below. Click all the skin layers that a single hair penetrates. stratum corneum stratum spinosum stratum basale epidermis dermis Attached to the pore that the hair is in you can find sweat glands and oil glands. Oil glands are important for keeping our hair smooth and soft. If we make too much our hair becomes oily but if we have too little our hair becomes dry. If the oil glands get blocked it's known as a whitehead or a blackhead. Acne is an active infection of the oil glands. Sweat glands are important for temperature regulation AND keep bacteria out. If you sweat too much it can be a problem though! Sweat glands in your armpits also contain bacteria which can cause body odor.Take a look at the diagram below:How does antiperspirant work? It absorbs the oils It absorbs the sweat It blocks the gland How does your body know what to do? The hypothalamus in your brain controls your temperature. It's about the size of an almond. Your blood also helps you maintain your temperature. When it's too hot your blood vessels push closer to the surface and dilate (get bigger) to release body heat. BUT when it's too cold your blood vessels constrict and stay deep to keep heat in.Where are the blood vessels located? In the epidermis In the dermis