14Stratus Granulosum, Lucidum Poor nutrient supply.Flatten layer of cells.3-5 cells thick.No cell division.Keratin accumulates.Found only in very thick skin.Translucent.Highly keratinized.Dead cells
15Stratum Corneum 25-30 cells thick. Cells are filled with keratin and hardened.Sloughed off.Outer most layer of epidermis.Keratinocytes
16Anatomy A215: EPIDERMIS LAYERS Memory Matrix Superficial or Deep Layer?CharacteristicsAre cells keratinized in this layer?Seen in THIN skin too?Stratum BasaleStratum SpinosumStratum GranulosumStratum LucidumStratum Corneum
23Types of Sweat Glands (Sudoriferous Glands) Merocrine glands: release fluid by exocytosisEccrineMost commonSecretion is mostly water with solutesCools body downApocrineDevelops scent as bacteria metabolize secretionStimulated when frightened, during pain, during emotional upset
24Hypodermis (Subcutaneous) Atlas of Human Anatomy in Cross Section: Section 2. Neck, Shoulders, Upper Arm, and Upper Thorax (Lungs)Key Figure 4aRonald A. Bergman, Ph.D., Adel K. Afifi, M.D., Jean J. Jew, M.D., and Paul C. Reimann, B.S. Peer Review Status: Externally Peer ReviewedHypodermis (Subcutaneous)Recognized by adipose tissue.