BLG 10A/B Lecture Notes - Lecture 5: Dense Irregular Connective Tissue, Stratum Basale, Stratum Granulosum
Document Summary
Five epidermal layers (strata) resulting from keratinization (fig. Deepest to most superificial: stratum basale (or stratum germinativum) = single layer of cuboidal stem cells (youngest keratinocytes) that undergo mitosis anchored to wavy basement membrane desmosomes hold keratinocytes together and attached internally. 5. 5: due to rapid stretching and rupturing the reticular fibres underneath ( will fade eventually) known as microtears. 90% of chest, arm and leg hairs in males, and 35% in females forms beard. ** radiation therapy: loss of hair while undergoing the treatment hair structure (fig. A = asymmetry one side of the lesion does not match the other. B = border irregularity edges ragged, notched or blurred. C = colour pigmentation is not uniform ( looking for consistent colour) D = diameter greater than 6 mm. E = evolving changes over time is size, shape, elevation or colour, may bleed, crust, itch. 9% or 18% of body surface assigned to regions of the body (except genitalia.
