CAPS 390 Study Guide - Final Guide: Myoepithelial Cell, Tubular Gland, Keratinocyte

• School: UBC
• Department: Cellular, Anatomical and Physiological Sciences
• Course: CAPS 390
• Professor: Calvin Roskelley

Document Summary

Layers: epidermis: stratified epithelial cells: most superficial layer stratified keratinized (mechanical strength + waterproof) squamous epithelium, dermis: ct supplies epidermis with b. supply (white fibers = nerves, hypodermis (subcutaneous/superficial fascia): large fat storage in body. Normal life span of keratinocyte cells 3-4 wks. Stratum lucidum only in thick skin; absent in thin skin. No hair in thick skin (e. g. palm of hand) Melanocytes: typically found in stratum basale: prod. Melanin pigment (contained in dendritic processes b/w + pinched off by. Langerhans: perm. resident macrophages of skin detect/fight pathogens located in stratum spinosum. Merkel cells: found in s. basale in touch with nerve endings = temp + pain. Sweat glands: duct = exocrine, simple (not branched) coiled tubular gland, fig. 11. 10: stratified cuboidal lining ducts (darker pink structures: myoepithelial cells: epithelial tissue containing muscle cells surrounding secretory part of sweat glands contract = squeeze sweat out (controlled by sympathetic ns, also in mammary glands)