approximately equal numbers of Gram-positive and Gram-negative bacteria. Spore-forming bacteria. Enteric. 2. The outer layer of the skin is the _________ while the deeper layer is the _________ cutaneous‚ keratin. dermis‚ sebum. mucous‚ epidermis. epidermis‚ dermis. sebum‚ keratin. 3. A massive lesion caused by the spread of Staphylococcus aureus infection (often on the neck and upper back) is called a ________ boil. furuncle. Carbuncle. abscess. pustule. 4. Scalded skin syndrome is caused
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HEATHER TOUPS A/P I T&R 10TH EDITION TEXT SELF QUIZ CHAPTER 3 Fill in the blanks in the following statements. 1. The three principal parts of the cell are the plasma membrane‚ cytoplasm and nucleus 2. Apoptosis refers to programmed cell death‚ whereas necrosis refers to cell death resulting from tissue injury. 3. The fluid portion of the cytoplasm is the cytosol 4. List three causes of cellular aging. 1)shortening and loss of protective polemeres
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absorption‚ and synthesis of vitamin D. 18 Type of tissue that protects and supports the body and its organs‚ binds organs together‚ stores energy reserves as fat‚ and provides immunity. Connective tissue 19 A tough‚ fibrous protein found in the epidermis that helps protect the skin and underlying tissues from heat‚ microbes‚ and chemicals. Keratin 20 Type of tissue that generates the force needed to make body structures move. Can be classified as either skeletal‚ cardiac‚ or smooth. muscular
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2. Focus the specimen under the scanner. 3. Draw the specimen. Include a brief description. B. Dermal Tissue 1. Obtain a leaf of Rhoeo spathacea. 2. Prepare an epidermal tissue wet mount by peeling off a portion of the upper epidermis. 3. Examine the tissue under the HPO. 4. Draw the epidermal cells. Include a brief
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Question: investigate the water potential of potato tissue? Introduction All cells require essential materials to ensure their survival. Chemical‚ physical‚ and biological processes are used to move these materials inside of cells. Similar processes move waste materials outside of cells. These processes can be passive‚ occurring as a result of basic physical laws and requiring no outside energy from the cell or they can be active‚ requiring energy expenditure. Since all molecules possess kinetic
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DESCRIBE the anatomy and physiology of the skin in relation to skin breakdown AND the development of pressure sores. The skin is one of the largest organs in the body in surface area and weight. The skin consists of three layers: the epidermis‚ the dermis and the subcutaneous tissue. The skin has three main functions: protection‚ regulation and sensation. The skin is an organ has many functions 1. Protection. The primary function of the skin is to act as a barrier. The skin provides protection
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c. Functions 1) Establish patterns of growth. • Leaf pattern. 2) Produce new‚ genetically healthy cells 3) Produce derivatives which in turn account for primary growth i.e. elongation. 2. Derivatives a. Protoderm - becomes the epidermis b. Procambium - becomes the vascular tissue (xylem and phloem) c. Ground Meristem - becomes the cortex and pith B. LATERAL MERISTEMS - Secondary Growth 1. Vascular Cambium a. Secondary Xylem b. Secondary Phloem 2. Cork Cambium
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unties with the wound edges‚ the migratory phase‚ is when the clot becomes a scab over the cut to form a repair bridge‚ proliferative phase epithelial cells‚ collagen fibers and blood vessels grow‚ maturation phase is when the scab falls off and the epidermis has been restored to normal thickness. Harmful organisms that get onto skin from the lake: bacteria‚
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- skin has a vital role in elimination of Na+ and H2O for homeostasis (maintaining balance in the internal environment) STRUCTURES OF THE SKIN LAYERS OF THE SKIN 1) EPIDERMIS – avascular in nature - Thickness: 0.04 mm (eyelids- thinnest) to 1.6 mm (palms and soles- thickest) 4 Cell types of the Epidermis a)
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remain oblivious. Sunscreens made of zinc oxide or titanium oxide are the most natural‚ safe and potent types of sunscreens out there. These kinds of sunscreens sit on the surface of the skin and physically block UV light from harming the epidermis. The only downside to these UV blocking minerals is their heavy feel on the skin‚ as well as their white cast. Other ingredients that may be more commonly found in some of the most popular‚ commercial sunscreens are oxybenzone‚ also referred to as
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