Investigating arteries and veins Aim: How far the artery and vein can stretch when different masses are hanged from them. Hypothesis: I predict that the heavier the mass the more likely it is to stretch the artery and vein further‚ eventually causing it to break apart. In addition the vein will stretch further than the artery when given the same mass. This is because arteries are much larger‚ muscular and more elastic than the veins‚ as they carry high pressure blood. Veins do not transport
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Investigating arteries and veins Methodology 1. Suspend a ring of artery from a hook on a clamp stand. 2. Use a metre rule to record the length of the ring once the mass carrier has been attached to the free end of the ring. 3. Attach a 10 g mass and record the length of the ring after the mass is added. 4. Remove the mass and record the length of the ring. 5. Repeat steps 2 and 3 using 20‚ 30‚ 40 and 50 g masses. Record the length with and without the masses each time. When comparing
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Write an essay on the following topic. Compare arteries‚ veins and capillaries in terms of their features and functions. (12 marks) ## Content (maximum 9 marks) |Contents |Differences |Marks | |Features |Arteries have thicker wall to withstand the high blood pressure | | | |Veins have thinner wall.
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“Varicose veins are gnarled‚ enlarged veins. Any vein become varicose‚ but the veins most commonly affected are those in your legs and feet. That’s because standing and walking upright increases the pressure in the veins of your lower body” (Mayo Clinic‚ 2011). “Varicose veins are the result of damaged or improperly working valves in the veins‚ which cause blood to back up and make the vein swell” (Cardio Smart‚ 2012). “Varicose veins are enlarged veins that can be blue‚ red‚ or flesh colored.
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used for submission purposes (misspelled): Dialated Veins Sclerptherapy Reticular veins are also referred to as ‘blue veins’ or ‘feeder veins.’ This condition occurs when dilated veins allow the outgoing blood to flow the opposite direction (backward). This increase in the pressure causes the veins to become enlarged. They can also twist and cause green or blue lines beneath the skin‚ which often creates an unsightly marbling effect. Reticular Veins: What You Need to Know The Cause Approximately 80
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21 % of cases whereas early branching of the right renal arteries is present in 15 % of individuals.(38) MIP image showing right renal prehilar bifurcation(arrow) and left renal artery duplication(arrowhead). III) ACCORDING TO ORIGIN In case of multiple arteries supplying the single kidney‚ the artery having largest diameter is considered as the main artery and the rest of the arteries are known as the accessory arteries. These arteries can be divided into two categories according to how they
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FOR IMMEDIATE RELEASE (Melbourne‚ Victoria) Varicose veins plague individuals around the globe. It is estimated that 30 percent of women and ten percent of men have this condition‚ and there are numerous causes. Obesity plays a role in the development of varicose veins‚ and this condition tends to run in families. Individuals who sit or stand for long periods of time are also more prone to developing this condition. Thankfully‚ varicose veins treatments allow men and women to address this problem
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Arteries carry blood away form the heart the extremities and organs. They have typical three layer blood vessel wall structure with a thick tunica media. The walls of arteries are highly compliant due to the elastic fibres present. The wall thickness of the arteries varies in based on the proximity to the heart. The elasticity of arteries allows pressure absorption from the left ventricle of the heart as it pumps blood into the arteries. There are two significant types of arteries‚ elastic and muscular
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PALM VEIN TECHNOLOGY Abstract: Palm vein technologies are one of the up coming technologies which is highly secure. It is the world’s first contactless personal identification system that uses the vein patterns in human palms to confirm a person’s identity. It is highly secure because it uses information contained within the body and is also highly accurate because the pattern of veins in the palm is complex and unique to each individual. Moreover
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prisons in the teeming city of Nikoau. Baolict Prison: for those who commit crimes of disloyalty or treachery. Shamua Prison: for those who commit crimes of thievery. Nolodao Prison: for those who commit violent crimes and harm the sanctity of the body and mind. Nolodao is the place where Yyusuk‚ the son of the Devil‚ calls home. Yyusuk didn’t remember any other place except Nolodao‚ nor did he remember having any possessions‚ relationships or any other lifestyle. The only people he ever saw
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