BIO 425. Chapter 6: Lecture Notes

Bio 425 Lecture Notes rapter 6 Glands are either endocrine or exocrine Exocrine glands are associated with the skin Antimicrobial proteins Dermcidin Melanin - Haircolor, eye ecolor, skintone, the amount influences which types of skin cancer people would be more or less likely to get Also influences the amount of vitamin 0 production we have. we all have about the same amount of melanocutes, but the variation lies in how much melanin is produced. Dendrite = "tree" different cells or parts in the body with dendrite in it In the case of the skin, dendritic cells -Part of the immune system In the case of the nervous system dendrites projections of neurons thatdetect information. Exfoliation (desgramation) Cells fillup with keratin, moveup, and dic Shack- The flow of blood isn't adequate enough to mod the body's metabolic de mands 3 main factors influencing Skin tone 1. Amount and type of melanin 2. Amount of hemoglobin (a Protein in the blood that transports oxygen and Ca rbon dioxide) 3. Amount of carotene (orange yellow piament precursoral vitamin A) - influenced by diet If you get a tan DNA damage Sun burn More DNA damage 7 Scanned with CamScanner

C Follicle- cells thatsupport and nourish In many parts of thebody, the outer part is the cortex, the innerpart is the mediva Ex. Hair, brain, ovary, thymus Arrector muscle anector Pilli pheromones are secre tions involved in communication Cerumen = ear wax into the little hole in our skull designed to trap insects and prevent them from crawling Metastasis - Traveling Melanoma- - abnormal shape/ irregular border Dra acter larger than a Pencil eraser Different colors such as u melted chocol late"