Physiology Quiz 3 05/04/2016 Which of the following is NOT a function of the skin? sensation vitamin A synthesis thermoregulation protection A splinter penetrated into the skin on the palmar surface of the hand. The splinter nearly reached stratum basale of the epidermis. What is the final layer injured by this splinter? stratum granulosum of the epidermis stratum corneum of the epidermis stratum spinosum of the epidermis stratum lucidum of the epidermis Melanin is produced upon exposure to: UV radiation. cold. heat. wind. [AdsenseImage] What does cyanosis signify? A person has been exposed to cyanide. A person has been kept out of the sun. A person has oxygen-starved skin. A person has been exposed to too much sun. What symptom distinguishes a second-degree from a third-degree burn? presence of blisters associated with the third-degree burn presence of erythema associated with the third-degree burn presence of significant pain initially with the third-degree burn lack of initial pain associated with the third-degree burn A patient arrives in your clinic with a sunburn that affects the epidermis only. Her skin appears red and is mildly painful. You believe she has a: first-degree burn. fourth-degree burn. third-degree burn. second-degree burn. The rule of nines is used to estimate the percentage of body surface area affected by: burns. basal cell carcinoma. malignant melanoma. melanin. The type of burn that may require a skin graft is a: third-degree burn. second-degree burn. first-degree burn. partial-thickness burn. When body temperature increases above the normal range, thermoreceptors in the skin and hypothalamus detect the increase in body temperature. The heat-loss center of the hypothalamus is activated, which sends signals to blood vessels and sweat glands. In response, blood vessels in the skin dilate and sweat glands release sweat. Determine the part of this negative feedback loop that serves as the effector(s). body temperature thermoreceptors hypothalamus blood vessels and sweat glands [AdsenseImage] What protein makes stratified epithelial tissues resistant to friction? reticular collagen elastic keratin Glands, such as the thyroid, that secrete their products directly into the blood rather than through ducts are classified as: ceruminous. exocrine. endocrine. sebaceous. Cells that ingest foreign substances, microorganisms, and dead and damaged cells are: adipocytes. phagocytes. fibroblasts. mast cells. Seventy-year-old Jerry should NOT expect regeneration of worn, damaged: epithelium. fat. cartilage. bones. Osteoblasts are immature cells that build bone and carry out the process of bone deposition. True False [AdsenseImage] The striations in cardiac muscle cells are modified gap junctions that unite the cells and permit the heart to contract as a unit. True False What lubricates movable joints such as the hip, knee, and elbow? serous fluid synovial fluid mucus saliva Cardiac – Valvular disorders – Cardiac cath. (QUIZ with answers Study Guide)Catphishing As an Amazon Associate we earn from qualifying purchases through some links in our articles.