matches or lighters‚ and excessive sun exposure. First degree burns are the least severe form of burns‚ it only effects the outer most layer of the skin‚ the epidermis. After a first degree burn the skin appears red and a bit inflamed‚ there is usually some pain and the skin turns dry and begins to peel. Because the burn only the epidermis of the skin the symptom of the burn begin to disappear once the skins cells start to fall off. The burn should be completely healed after about 6 days. If the
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Stacy Hernandez Period 1 Mrs. Riley AP Biology Osmosis and Diffusion Lab I. Introduction: Diffusion is vital to many life functions of a cell‚ it allow the transportation of vitally important nutrients and compounds without the expenditure of excess metabolic energy. To explain diffusion‚ it is as if a bottle of perfume is opened at one end of the room‚ then in a short amount of time a person at the other end of the room can detect the scent of the perfume; this is the process of diffusion
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temperature‚ houses sensory receptors‚ synthesizes various chemicals and excretes small quantities of waste. 3. Name the tissues found in the outer layer of skin‚ inner layer of skin and subcutaneous layer (beneath the skin). The outer layer is the epidermis layer of skin; it is composed of stratified squamous epithelium. The inner layer or dermis layer is made up of connective tissue containing collagen and elastic fibers‚ smooth muscle tissue‚ nervous tissue‚ and blood. The subcutaneous layer is made
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ANIMAL ORGANIZATION AND HOMEOSTASIS QUIZ NOTE: THIS SECTION ALSO INCLUDES THE INTEGUMENTARY SYSTEM _____1. Which gives the correct sequence of increasing organizational complexity? a) organ‚ tissue‚ cell‚ organ system‚ organism b) cell‚ organ‚ organ system‚ tissue‚ organism c) cell‚ tissue‚ organ‚ organ system‚ organism d) organism‚ tissue‚ cell‚ organ system‚ organ e) tissue‚ cell‚ organ system‚ organism‚ organ _____2. Which type of tissue lines body cavities and covers body surfaces
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to the permanence of fingerprints. The outer layer is known as the epidermis‚ and the inner layer is known as the dermis. The bottom of the epidermis‚is adjacent to the dermis‚ is the generating layer of the epidermis and it is in this layer that new cells are formed. The skin is one of the largest organs in the body. The epidermis has many smaller layers. The dermal layer is the growth layer of skin and feeds the epidermis. The dermal layer has rows of papillae pegs. The papillae determine
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The nervous system helps maintain homeostasis Homeostatic control mechanisms have at least three interdependent components: a receptor‚ integrating center‚ and effector. The receptor senses environmental stimuli‚ sending the information to the integrating center. The integrating center‚ generally a region of the brain called the hypothalamus‚ signals an effector (e.g. muscles or an organ) to respond to the stimuli. Positive feedback enhances or accelerates output created by an activated stimulus
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First degree burns are considered partial thickness burns and damage only occurs in the epidermis layer of the skin. First degree burns are one of the mildest forms of skin injuries‚ and usually do not consider medical treatment. However‚ some superficial burns can be large and painful and may require attention. There are many causes of first degree burns like sunburns‚ scalds‚ and electricity. The most common symptoms can be minor discomfort‚ redness‚ swelling‚ and peeling. Superficial burns can
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| | | | | | | | | | | | | | | Lower side of the Rheo leaves 100X Lower side of the Rheo leaves 100X Explanation: Questions: 1. Has the lower epidermis the same structure as the upper epidermis? | Upper epidermis | Lower epidermis | | | | | | | | | | 2. Do you find any cells which contain green plastid? What is the shape for such cells? Green plastid: * Shape: * Function: 3. Comparison peels from
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N10/4/BIOLO/HPM/ENG/TZ0/XX 88106001 Biology HigHer level PaPer 1 Tuesday 2 November 2010 (afternoon) 1 hour INSTRUCTIONS TO CANDIDATES • Do not open this examination paper until instructed to do so. • Answer all the questions. • For each question‚ choose the answer you consider to be the best and indicate your choice on the answer sheet provided. 8810-6001 17 pages © International Baccalaureate Organization 2010 – 2 – 1. N10/4/BIOLO/HPM/ENG/TZ0/XX [Question and image
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Analyst Cite this: Analyst‚ 2011‚ 136‚ 2359 www.rsc.org/analyst View Article Online / Journal Homepage / Table of Contents for this issue Dynamic Article Links < C PAPER Characterization of porcine skin as a model for human skin studies using infrared spectroscopic imaging Rong Kong and Rohit Bhargava* Downloaded by Queen Mary‚ University of London on 19/04/2013 18:44:34. Published on 21 April 2011 on http://pubs.rsc.org | doi:10.1039/C1AN15111H Received 10th February 2011‚ Accepted
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