Activity 1 – The Muscle Twitch and Latent 1) Define the terms skeletal muscle fiber‚ motor unit‚ skeletal muscle twitch‚ electrical stimulus‚ and latent period. Skeletal Muscle Fiber: Skeletal muscle cells that are composed of hundreds to thousands of individual cells that produce muscle tension. These fibers are what move our bodies and generate muscle tension/force that enables us to have manual dexterity. Motor unit: consists of one motor neuron and all of the skeletal muscle fibers that it stimulates
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naked eye. What is the skeletal system? The skeletal system is a very important part of the human body this consists of 206 bones‚ which together with different structures make the joints of the system. Within the skeletal system the structures present are the cartilage‚ bone tissues‚ fibrous connective tissues which form the ligaments of the bones Scanlon and Sanders‚ pp.122‚ 2014). The skeletal system consists of two main organs these are the ligaments and bones‚ the skeletal system functions by
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Surface Tension My problem was to find out how to test or measure surface tension. I think the reason of some of the force in surface tension is cohesion and gravity. Surface Tension is the condition existing at the free surface of a liquid‚ resembling the properties of an elastic skin under tension. The tension is the result of intermolecular forces exerting an unbalanced inward pull on the individual surface molecules; this is reflected in the considerable curvature at those edges where the
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Picking up a box from the floor and placing it on a shelf Light entering the eye forms an upside-down image on the retina. The retina transforms the light into nerve signals for the brain. The brain then turns the image right-side up and tells us what we are seeing. Our brain then computes to pick up the box. When a message comes into the brain from anywhere in the body‚ the brain tells the body how to react. the brain as a central computer that controls all bodily functions‚ then the nervous
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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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develop some “green” materials‚ such as PET Bottle. And now‚ we have one more remarkable material – Coffee Fiber. Description Coffee fiber is a composite technical fiber from waste coffee grounds. This fiber is made into a yarn that can be knitted or woven fabric. The fabric‚ called “S.Cafe” is a result of over 3 years dedication and efforts of a Taiwanese company. The fabric isn’t made just from coffee grounds‚ but apparently a mixture of coffee grounds in a low percentage along with polyester or
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individual and every country in world are facing with racial tension. Racial tension can be described as‚ groups of people or more than one race who live around the same area and they are facing a serious conflict with each other. The effect of racial tension can be a everybody’s worst nightmare‚ but the most important is to study the causes of racial tension. The reason to study the causes of racial tension is to understand why and how racial tension happens‚ rather than pointing finger with eye closed
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2017 Motor Unit Recruitment and Muscle Fatigue Lab Introduction Human skeletal muscles are made up of hundreds of cylindrically-shaped cells called myofibers‚ and they are bound together by connective tissue. These muscles are stimulated to contract by somatic motor nerves‚ or motor neurons‚ that carry signals in the form of nerve impulses from the brain or spinal cord‚ to the skeletal muscles. Although a motor neuron can innervate several fibers‚ each muscle fiber can only be innervated by one motor
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FIBER-OPTIC COMMUNICATION Introduction Fiber-optic communication is a method of transmitting information from one place to another by sending pulses of light through an optical fiber. The light forms an electromagnetic waves that is modulated to carry information. First developed in the 1970s‚ fiber-optic communication system have revolutionized the telecommunication industry and have played a major role in the advent of the information over age. Because of its advantages over electrical
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Radio over Fiber based Network Architecture vorgelegt von Master of Science Hong Bong Kim aus Berlin von der Fakult¨ t IV - Elektrotechnik und Informatik a der Technischen Universit¨ t Berlin a zur Erlangung des akademischen Grades Doktor der Ingenieurwissenschaften - Dr.-Ing. - genehmigte Dissertation Promotionsausschuss: Vorsitzender Berichter Berichter : Prof. Dr.-Ing. Klaus Petermann : Prof. Dr.-Ing. Adam Wolisz : Prof. Dr.-Ing. Ralf Lehnert Tag der wissenschaftliche Aussprache:
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