Biol 2457 1st Edition Lecture 8 I. Apoptosisa. A cell that has cellular change in it will self-destructb. A set up for cell deathc. Cells become invadedII. HeLa cellsa. Used in experimentationb. Release CytokinesIII. Dermis Characteristicsa. Highly vascularb. Tough receptorc. Stretch receptorsd. Nerve EndingsIV. Reticular Layera. Abrupt distinction between reticular layer of dermis and hypodermisV. Papillarya. Moves from loose connective tissue to reticular layerVI. EGFa. Accelerates production of biproductsb. Stimulates repairc. Stimulates excretion of other glandsVII. Dermatoglyphsa. Study of those patterns of epidermal ridgesVIII. Location codinga. Designing differences and similarities in bops and whirlsIX. Through positive feedback mechanismsa. MelaninThese notes represent a detailed interpretation of the professor’s lecture. GradeBuddy is best used as a supplement to your own notes, not as a substitute.i. Skin color1. Produced by Melatonin2. Yellow-red or brown-black skin pigmentation3. Lack of it allows us to have the lack of the production of Vitamin D4. Those that drink a lot of carrots/tomatoes tend to have a reddish-orange pigment in their skinb. Hemoglobini. Liver takes care of itii. Clinical signs of liver damageiii. Common among newbornsiv. Overproduced red blood cellsc. Subcutaneous liveri. Hypodermisd. Hairsi. Pili1. Functiona. Protectionb. Reduction of heat lossc. Sensing light tough2. Compositiona. Deadb. Keratinizedc. Damage of hair papillai. Loses haird. Club hairi. Hair does not grow anymore1. Types:a. Lanugo: Fine, downy hairsb. Vellus: Pale hairs that are hard to seec. Terminal: long coarse and heavily pigmented hairse. Sebaceous(Oil) Glandsi. By itself1. follicleii. Connected to hairiii. Secrete sebumf. Sudoriferous Glandsi. Eccrine1. Helps to cool bodyii. Apocrine1. Body Odor2. Releases waste3. Secondary Characteristicsa. Mammory glandsb. Modified Sweat glandsiii. Merocrine (eccrine)1. Insensible sweativ. Ceruminous Glands1. Produce Ear WaxX. Nailsa. Keratinizedb. Nail rootc. White cloudsi. Injuries to dermal layerXI. Abracosisa. White long dust particlesb. No protectionXII. Silacosisa. Particles of silicon gets through lungsXIII. Ulcer Stages 1-4a. Any wound you have stimulates regrowth of certain tissuesXIV.Burnsa. First Degreei. Sunburn, uncomfortableb. Second Degreei. Damage to epidermis and blister (Causes blisters)c. Third Degreei. Damage or destruction to hypodermis1. Loss of fluid2. Bacterial infectionXV. To combat aginga. Drink a lot of fluidb. Lack of fluid further dehydratesc. Causes a lack of production of