Waterproofi - Study guides, Class notes & Summaries

Which of the following cell types provides a waterproofing function for the outer layers of skin? A. Melanocytes B. Keratinocytes C. Merkel cells D. Langerhans cells - ANSWERSB. Keratinocytes Keratinocytes contain the protein keratin. They are produced in the epidermis and migrate upwards. The tight junctions between cells prevent water entry. They eventually form a layer of dead cells on the skin surface, which produces a waterproofing effect. A person is suddenly frightened. Which ...

Journeyman Plumbing Test Study Guide | Complete Study Solutions Graded A+ More restrictive provisions apply where conflicts occur between code and manufacture instructions. what shall be 3rd party certified as conforming to NSF 14 all plastic pipe, fittings and components. all strainer plates on drain inlets shall be designed and installed so that all openings are..? not greater than 1/2 inch (12.7) in least dimension. pipes through foundation walls need..? a relieving arch or a pipe sle...