Dermatology - structure and function 0.0 / 5 ? MedicineMedicineUniversityNone Created by: E_sMCreated on: 25-01-21 11:07 What is the order of the epidermal layers (top to bottom)? keratin layer, granular layer, prickle cell layer, basal layer 1 of 23 What germ layer is the epidermis derived from? ectoderm 2 of 23 What germ cell layer is the dermis derived from? mesoderm 3 of 23 What are the lines of normal skin development called? Blaschko's lines 4 of 23 Which epidermal layer is the most metabolically active? Basal cell layer 5 of 23 Which epidermal layer contains Odland (lamellar) bodies? Granular cell layer 6 of 23 What epidermal layer contains corneocytes? Keratin layer 7 of 23 What cell type makes up 95% of epidermal cells? Keratinocytes 8 of 23 What colour pigment does eumelanin produce? Brown or black 9 of 23 What colour pigment does phaeomelanin produce? Red and yellow 10 of 23 What cell type is lost in vitiligo due to an autoimmune cause? Melanocytes 11 of 23 In which syndrome is the melanin stimulating hormone produced in excess by the pituitary? Nelson's syndrome 12 of 23 Which epidermal layer contains Langerhans cells? Prickle cell layer 13 of 23 What is the function of Langerhans cells? Antigen presenting cells involved in the skin immune system 14 of 23 What do Merkel cells contain? Mechanoreceptors 15 of 23 What is the anagen phase in hair follicle growth? Growing 16 of 23 What is the telogen phase in hair follicle growth? Resting 17 of 23 What is the catagen phase of hair follicle growth? Involuting 18 of 23 What type of sweat glands are linked to sexual odour? Apocrine glands 19 of 23 What type of sweat gland lubricates hair follicles and are hormone sensitive? Sebaceous glands 20 of 23 What type of sweat gland covers the whole skin surface and controls thermoregulation? Eccrine glands 21 of 23 What sensation do Pacinian receptors sense? Pressure 22 of 23 What sensation do Meissner's corpuscles detect? Vibration 23 of 23
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