• The Epidermis contains keratinocytes‚ melanocytes and Langerhans cells. The skin‚ and in fact our whole body‚ is composed of many different types of cells. These cells have the same fundamental chemical composition but they vary in size‚ shape and function
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Harmful Threats to the Human Body There are a lot of bacteria that are good for human bodies‚ but there are also a lot of bacteria that’s very harmful to the human body. Bad bacteria can affect people from swimming in lakes and ponds. “Many of the world’s best-known disease outbreaks have been transmitted by water-borne bacterium.” Lakes and ponds are just un-treated drinking water. They have a lot of microorganisms in it that you cannot see. There are many ways to be contaminated by bacteria;
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both limitations and advancements Skin grafting is necessary when a patient is severely burned‚ which is considered to be a third degree burn. In a third degree burn the epidermis‚ dermis‚ and hypodermis are all affected from this this burn. Third degree burns are the most severe type of bun there is because the affect the epidermis‚ dermis‚ and the subcutaneous layer. After this type of burn the skin may appear charred‚ blanched‚ or bright red and normally the person affected by this won’t feel any
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of various organs of flowering plants. The tyloses are the structures present in the woody tissues of dicot stems. These are the extension of xylem parenchyma cells into the vessel elements(NEET-II 2016). Cortex tissue is present in between the epidermis and stele. It is multilayered and is made up of parenchymatous cells with big intercellular spaces (NEET-II 2016). Wood of gymnosperms does not contain vessels.e.g- Pinus is vesseless. Vessels are the characteristic feature of angiosperms (AMU 2015)
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exist many classes of animals whose organisms possess unique characteristics. When comparing the cat‚ of the class Mammalia‚ to that of the class Reptilia‚ five attributes that are quite different between the classes are their thermoregulation‚ epidermis‚ metabolic rate‚ reproduction‚ and body structure. Thermoregulation‚ for mammals and reptiles are the opposite of each other when compared together. As mammals are warm-blooded‚ which means reptiles are cold-blooded. Mammals are warm-blooded creatures
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Topic 9: Plant Science 9.1 Plant Structure and Growth 9.1.1 Draw and label plan diagrams to show the distribution of tissues in the stem and leaf of a dicotyledonous plant. Cross-section of a stem Part of plant | Purpose | Epidermis | Surface of the stem made of a number of layers often with a waxy cuticle to reduce water loss | Cortex Tissue | Forming a cylinder of tissue around the outer edge of the stem. Often contains cells with secondary thickening in the cell walls which provides
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Syllabus topic: Cell structure Aim: To observe and draw transverse sections of parenchyma‚ collenchyma‚ sclerenchyma‚ xylem‚ phloem and epidermal cells using a light microscope. Apparatus and Materials: Light microscope; microscopic slide of dicotyledonous stem Method: 1. The light microscope was plugged into a power source‚ and switched on. 2. The coarse focus of the light microscope was adjusted with both hands to move the stage downwards. 3. The slide with the dicotyledonous stem
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Name____________________________________ Two case studies on the integumentary system Chief Complaint: 8-year-old girl admitted for severe second- and third-degree burns following her rescue from a burning house. History: Angela Creighton‚ an 8-year-old white female‚ was transported by ambulance to the emergency room after being rescued from her burning house. She was asleep at night when a spark from the family fireplace started a fire‚ leaving her trapped in her bedroom. By the time the fire
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First degree burns are the least severe and only involves the epidermis. First degree burns are usually caused by the sun and result in slight swelling‚ pain‚ and redness. Second degree burns involve the epidermis as well as the dermis. These burns involve blistering in addition to the swelling‚ redness and pain. Second degree burns may appear white‚ red‚ or even tan and can produce scarring
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Definition Burns can be caused by flame‚ UV radiation‚ hot liquids‚ electricity‚ lightning and certain chemicals. Major burns are a medical emergency and require urgent medical attention. In some cases‚ skin graft surgery is needed (Atkinson A.‚ 1998) . Different types of burns There are four types of burns: * Thermal burns caused by fire‚ hot objects‚ hot liquids‚ and gases; or by nuclear blast or fireball Thermal burn treatment . enlarge | info | Fig. 1 Thermal burn - full thickness
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