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BIOD 151 Module 7 Exam Questions and Correct Answers With Complete Solution, 2024.

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BIOD 151 Module 7 Exam Questions and Correct Answers With Complete Solution, 2024. The integumentary system is comprised of what three parts of the body? skin, hair, nails List the layers of the skin superficial to deep. epidermis, dermis, hypodermis Describe 3 functions of the integumentary system. production of vitamin D, contain sense organs for protection of skin and underlying tissue, protection from pathogens T or F: Thermoreceptors detect fine touch. false; Merkel's cells and Meissner's corpuscles T or F: Merkel's cells and Meissner's corpuscles are thermoreceptors. false; mechanoreceptors T or F: Pacinian corpuscles detect pressure. true Describe what an exocrine gland contains and how its contents reach the surface of the skin. Exocrine glands contain secretions which are released through a duct into an epithelial surface or lining. What is a sebaceous gland? oil glands that produce sebum What is the purpose of thermoregulation in the body? Thermoregulation helps the body to regulate its temperature. What is one example of thermoregulation? perspiration T or F: The epidermis is made up of stratified cuboidal epithelium. false; stratified squamous epithelium What are the four layers of the epidermis? stratum corner, stratum granulosum, stratum spinosum, and stratum basale T or F: Cells of the stratum basale have a high rate of cell division. true The cells of the stratum basale have epidermal ridges which are the basis for each person's distinct pattern called ____. fingerprints T or F: Dead cells in the stratum corneum remain for about two weeks before they slough off. true These types of cells produce keratin. keratinocytes These types of cells produce melanin. melanocytes What are the two layers of the dermis? papillary and reticular Which layer of the dermis contains the main blood supply for the skin? reticular region What is the medical term for a bruise? contusion What is one of the purposes of the hypodermis? Fat helps to insulate and regulate body temperature. What is a dermatome? region of skin innervation by one sensory nerve Where is the information gathered from a dermatome sent? The sensory information gathered in each region of the skin is sent to the spinal cord and then finally the brain for processing. T or F: The root of the hair follicle begins at the shaft. false; hair bulb Each hair follicle is connected to a muscle called ____. arrector pili muscle T or F: Hair can be impacted by hormones circulating the body. true T or F: Nails are comprised of live skin cells. false; dead Is the nail body the visible or invisible portion of the nail? visible What types of cells form a blood clot? platelets Mast cells release what type of chemical? histamine What is the purpose of histamine? helps to dilate blood vessels to bring increased blood and nutrients to the injured area T or F: Fibroblasts are involved in engulfing foreign bacteria and particles. false; macrophages Fibroblasts secrete what substance to assist in wound healing? collagen What is the final phase of wound healing? remodeling What type of burn damages only the epidermis? first degree burn Your patient was involved in a severe cooking accident. She is not able to feel any sensation in the burned area. What type of burn did your patient incur? fourth degree burn What do nociceptors respond to? pain What do thermoreceptors respond to? changes in temperature What do melanocytes produce? melanin What are Langerhans cells?

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