How Cold Affects The Body B Y: G E N E S I S P O N C E How Cold Affects The Body The body tries to maintain body temperature by vasoconstriction and shivering. Shivering is the body’s main involuntary defense against the cold producing body heat by forcing muscles to contract and relax rapidly. Vasoconstriction is the tightening of blood vessels Vasoconstriction occurs in the uncovered skin when it is exposed to cold temperatures. The reduced blood flow in the skin conserves body heat
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How does cocaine effect the body? Cocaine is a powerful and highly addictive substance. Cocaine hydrochloride remains a Schedule II controlled substance as it has some legal therapeutic applications as a pain reliever and vasoconstrictor‚ useful in association with some medical procedures. In most other cases cocaine is an illegal substance. It can be found in a number of forms such as‚ white powder‚ paste‚ or solidified and rock like‚ referred to as crack cocaine. It can provide a rapid- onset‚
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Id Question The fluid property‚ due to which‚ mercury does not wet the glass is A surface tension B viscosity C cohesion D adhesion Answer A Marks 1 Unit A1 Id Question The dimension of dynamic viscosity is A ML-1T-1 B L2T-1 C LT-2 D ML-1T-2 Answer A Marks 2 Unit A1 Id Question The fluid‚ in which the shearing stress within it is proportional to the velocity gradient across the sheared section‚ is called a __________ fluid. A Bingham B Newtonian
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tendency of water to flow from a hypotonic solution (low concertration of dissolved substances) to hypertonic solution ( higher concerntration of dissolved substances) across a semipermeable membrane. Osmosis occurs when different concentrations of water are separated by a differentially permeable membrane. One example of a differentially permeable membrane within a living cell is the plasma membrane. • Hypotonic : ➢ Having a lesser osmotic pressure in a fluid compared to another fluid
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“How Does the Body Function?” Do you consider your body a delicate temple‚ and do you give any thoughts to the daily functions it provides for you? Well‚ to name a few‚ the eyes‚ ears and skin play a vital role in our lives‚ and without these precious body parts I believe our life of living free would be limited. Someone once said that “the eyes provide a window to the soul‚ they also provide us with a window to the world.” Our vision starts when you look at an object; the light from
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Assessing Blood Pressure Anatomy of the Heart The heart is located in the thoracic cavity between the lungs within the mediastinum. It is a hollow‚ cone-shaped‚ muscular organ about the size of a fist. Functions of the Heart keeps O2-poor blood separate from O2-rich blood; keeps the blood flowing in one direction—blood flows away from and then back to the heart in each circuit; creates blood pressure‚ which moves the blood through the circuits; Regulates the blood supply based on
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Fluid Mechanics Report Instruction Water turbine is a very common used throughout the world to generate power. Although the concept of the Impact of a Jet is essentially simple‚ and it can has a highly hydraulic efficiency‚ the factor of how can produce a powerful reaction force back is also has to be considerate truly. If we can manage well‚ we can determine the best situation and the optimum deflection angle out‚ for getting the optimum force that the impact can produce. But first of all‚ we
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Lab 7: The Kidney’s Role in Fluid Balance Introduction The renal system performs a vital role in homeostasis. The kidneys’ ability to retain valuable constituents and expel metabolic wastes from the body enables this system to regulate the volume‚ osmolarity‚ and pH of body’s internal fluid environment (Sherwood‚ 2007‚ p. 511). The functional unit of the kidney‚ referred to as the nephron‚ is composed of both tubular components—Bowman’s capsule proximal tubule‚ loop of Henle‚ the distal tubule
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QUESTION: How does stress affect the body? OBJECTIVE: This experiment will investigate if stress affects body temperature. PURPOSE: Stress refreshes the hormones that affect the body in different ways. In this experiment‚ it will evaluate whether body temperature changes can be detected when people are placed in stressful situations. HYPOTHESIS: I think that when you are stressed‚ the body temperature will be affected because the more you are stressed out‚ the higher your blood pressure gets and
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Of Pressure Date: 2nd October‚ 2006 Objectives: To calculate the center of pressure of an immersed rectangular surface and compare it to the value calculated theoretical. Apparatus: The apparatus is shown diagrammatically in the figure Note that the curved selection of the shape of this apparatus is to exclude the effect of moments that forces acting on this surface cause about the pivot as all these forces will pass through the pivot. Theory: The center of pressure of an immersed body is
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