Stratum granulosum a this layer is composed of is a

  • No School
  • AA 1
  • 8

This preview shows page 2 - 5 out of 8 pages.

8. Stratum Granulosum a. This layer is composed of b. Contains protein granules of Is a thin layer of cells in the epidermis. There are two different sorts of protein granule one con training protein alone and one containing protein and RNA. 9. Stratum Lucidum Is a thin clear layer of dead skin cells in the epidermis named for its translucent appearance under microscope. Stratum granulosum and stratum corneum 10. Stratum Corneum - the most superficial layer a. This layer consists of Is the outer layer of your epidermis. It's made up of mostly keratin and lipids.
Image of page 2
b. What is a “cornified cell”? Is highly insoluble and extremely tough structure formed beneath the cell membrane during terminal differentiation of keratinocytes. c. What is keratin? Keratin is a protein that already exists naturally in your hair. B. Thick and Thin Skin 1. Thick skin has how many epithelial strata? 5 2. Where would you find thick skin? Palms 3. What is responsible for the ridges of thick skin? The keratin makes the cell's tougher and helps make the skin waterproof. 4. Functionally the ridges _epidermal ridges & _dermal papillae_ 5. What layer is absent from thin skin? The stratum lucid layer 6. Which type of skin is more flexible? The dermis is the middle layer of skin found underneath the epidermis. 7. Which type of skin will have hair? Keratinocytes 8. What causes a callus to develop? Repeated pressure or friction on an area of skin. 9. Where would you find a corn? Between toes C. Skin Color 1. Melanin a. What amino acid is used to produce melanin? Melanin is produced through a multistage chemical process known as melanogenesis. b. Melanin is produced by
Image of page 3
melanocytes c. What is a melanosome? Is an organelle found in animal cells and is the site for synthesis storage and transport of melanin the most common light absorbing pigment found in animal kingdom. d. Melanin production is determined by: 1. produced by melanocytes 2. provides some protection in skin damage from the sun 3. response to sun exposure freckles 2. Carotene a. Is a photosynthetic pigment commonly found in plants b. Excess carotene accumulates in the sweat glands c. This gives the skin a yellow pigmentation of the skin 3. Hemoglobin a. Blood flowing through the skin gives it a _red color b. What does cyanosis mean? _bluish or purplish discolouration of the skin D. Dermis 1. The dermis is responsible for most of _elasticity to the skin a sense of touch and heat.
Image of page 4
Image of page 5

You've reached the end of your free preview.

Want to read all 8 pages?

  • Fall '19
  • Stratum Corneum, APOCRINE SWEAT GLANDS, Stratum Granulosum

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Stuck? We have tutors online 24/7 who can help you get unstuck.
A+ icon
Ask Expert Tutors You can ask You can ask You can ask (will expire )
Answers in as fast as 15 minutes
A+ icon
Ask Expert Tutors