BIOM 2000 Chapter Notes - Chapter 4: Stratified Squamous Epithelium, Simple Squamous Epithelium, Stratum Granulosum

• School: University of Guelph
• Department: Biomedical Sciences
• Course: BIOM 2000
• Professor: Carol Armstrong

Document Summary

Epithelia: simple organs, epithelium and connective tissue components. Cutaneous (the skin(: epidermis (stratified squamous epithelium) underlain by the dermis (dense connective tissue); protects body surface. Mucous: epithelial sheet underlain by a lamina propria (areolar connective tissue); lines body cavities open to the exterior. Serous: simple squamous epithelium resting on a scant connective tissue layer; lines the ventral body cavity. Skin functions include protecting the deeper tissue from chemicals, bacteria, bumps, and drying; regulating body temperature through radiation and sweating; and synthesizing defensive proteins and vitamin d. the cutaneous sensory receptors are located in the skin. The epidermis, the more superficial part of the skin, is formed and stratified squamous keratinizing epithelium and is avascular. Moving from its superficial to deep region, its layers are the stratum corneum, stratum lucidum (in thick skin only), stratum granulosum, stratum spinosum, and stratum basale. Cells at its surface are dead and continually flake off.