Function of the Skeletal System 1. Support 2. Movement: The bones of the upper and lower limbs pull and push‚ with the help of muscles. 3 storage as a mineral store. 97% of the body’s calcium is stored in bone. Here it is easily available and turns over fast. In pregnancy the demands of the fetus for calcium require a suitable diet and after menopause hormonal control of calcium levels may be impaired: calcium leaches out leaving brittle osteoporotic bones. 4. Protective. Skull for the brain
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Describe two examples of homeostatic systems in humans The phrase homeostasis originates from the Greek language. “Homeo” defined as “similar” and “stasis” meaning “stable”. Homeostasis is vital for us humans as it maintains equilibrium in the body‚ which may be caused due to extrinsic changes. Homeostasis happens to sustain the bodies activity‚ health and functioning. Homeostasis can occur to organs like skin‚ kidney or liver and it usually contains a system of feedback controls. The body has various
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with the number you see on your scale. 3. Stretch marks are the result of skin being stretched beyond its natural elasticity. This stretching causes a disruption of the body’s collagen production. Collagen is a special protein that helps keep the skin elastic and‚ therefore‚ able to stretch when we gain weight. When this collagen production is disrupted‚ the skin loses its elasticity‚ which makes it more prone to stretch marks. 4. Stretch mark are usually found in a series as small‚ indented streaks
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Stickler’s Syndrome Stickler’s Syndrome is a connective tissue disorder that causes problems with vision‚ hearing‚ bones‚ and joints. Stickler’s Syndrome was named after Dr. Gunnar B. Stickler. In 1960‚ a 12 year old boy was analyzed at Mayo Foundation in Minnesota. The boy had expansions of quite a few of the joints‚ he was also very short sighted. His mother also had a problem‚ she was blind. Dr. Stickler founded that other members of this family had similar symptoms. This made Stickler
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Chapter 6-Bones and Skeletal Tissue For this assignment‚ please read the chapter and answer the questions below. Please type your answers in red or blue color. Please note that points may be deducted if answers are not submitted in these colors. Type your answer in the spaces provided below: Skeletal System: Describe each of the following functions of the Skeletal System i. support- To provide structural support for the entire body. ii. protection- surrounds soft tissue‚ fused bones
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Retention and Relapse in Orthodontics Post-treatment changes in tooth position are a fact of life for orthodontists. Patients‚ however‚ often have different expectations and their satisfaction with their orthodontic treatment often hinges on the prolonged retention of that treatment. (Put stats on lifelong retention of ortho work here) Patients invest a considerable amount of time and money into their orthodontic treatment and expect the results to be stable for years. As a result‚ retention and
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precancerous condition associated with chronic betel and areca nut chewing. A clear dose dependent relationship was observed for both frequency and duration of chewing areca nut in development of OSF [10]. Fibrosis is resulted by increased collagen synthesis or reduced collagen degradation. Development of squamous cell carcinoma
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BSC 2085C: Anatomy and Physiology Lab 4: Histology Name ___ Directions: There are five (5) activities in this lab. Please be sure to complete them all. For all questions‚ type your answers into the yellow box ____ (including your name above) it will expand as you write. Activity 1: Tissue Types 1-1: List the four types of tissue found in the human body and give an example of each. 1. _Epithelial__example: Skin_ 2. Connective_ example: Tendons___ 3. _Muscle__example: Muscles
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bonding (hydrogen‚ ionic‚ disulfide and hydrophobic interactions) which hold the molecule in shape. (g) Analyse the molecular structure of a dimeric enzyme with a quaternary structure e.g. viral/HIV protease‚ as an example of a globular protein‚ and of collagen as an example of a fibrous protein‚ and relate these structures to their functions. (h) Explain the mode of action of enzymes in terms of an active site‚ enzyme/substrate complex‚ lowering of activation energy and enzyme specificity. (i) Follow the
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dermis also varies in thickness depending on the location of the skin. It is .3 mm on the eyelid and 3.0 mm on the back. The dermis is composed of three types of tissue that are present throughout - not in layers. The types of tissue are: * collagen * elastic tissue * reticular fibers Layers of the Dermis The two layers
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