topic 4 - The Integument System 1) List the functions of...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
The Integument System 1) List the functions of skin a. Protection (waterproof, keeps fluid in, stops dehydration) b. Thermoregulation (sweat glands, blood vessels) c. Sensation d. Vitamin D production (calcium regulation) e. Excretion (loss of fluid/salts) 2) List the principle layers of the epidermis and dermis a. Epidermis i. Stratum corneum ii. Lucidum iii. Granulosum iv. Spinosum v. Basal b. Dermis i. Papillary ii. Reticular 3) Explain the important cellular components of each skin layer and describe the important functions or events that take place a. Epidermis (avascular) i. Stratum 1. Surrounded by lipids 2. Constantly shed 3. Keratin fills spaces 4. 25-30 layers ii. Lucidum 1. 3-5 layers (dead)
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. Thick skin 3. iii. Granulosum 1. 3-5 layers 2. Dying cells 3. Wax filled dead cells at end 4. Granules (nuclear degeneration) iv. Spinosum 1. 8-10 cell layers 2. Held together by Desmosome v. Basal 1. Germinal layer of skin 2. Deepest single layer of cells
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 04/03/2008 for the course BIOL 437 taught by Professor Plochocki,jeffreyoswalt,mark during the Spring '08 term at Pennsylvania State University, University Park.

Page1 / 5

topic 4 - The Integument System 1) List the functions of...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online