Brochure information Anatomy and physiology of the cardiovascular system Cardiovascular System According to (smith.A2013). The cardiovascular system includes the heart, blood vessels and also blood. Its role is to deliver nutrients and takes away any by-products from a person’s body. The cardiovascular system is the heart and it is a four-chambered pump that carries blood to the arteries these arteries then carries out clean and oxygenated blood to the tissue. The blood Definition According to
Veins: Function of the Heart: The heart is a muscular organ in humans which pumps blood through the bold vessels of the circulatory system. Blood provides the body with oxygen and nutrients and also assists in the removal of waste. The heart is a pump that drives the whole circulatory system. It receives and propels blood, rhythmically contracting, forcing the blood through a system of vessels. The hearts action is controlled by the autonomic nervous system. STRUTURE OF THE VEINS, CAPILLARIES
the blood travels to varying distances around the body, the blood vessels have to be adapted to overcome different pressures. The pressure changes in the four chambers on the heart (two atria’s and two ventricles) allow the blood to continuously flow in one direction. This is also aided by the valves (artioventricular and semi lunar valves). The circulatory system consists of the heart as well. The heart is a complex
The heart, blood, and blood vessels all form the circulatory system, also known as the cardiovascular system. As one of the most important systems in the human body, the circulatory system transports oxygen and nutrients to tissues and removes any waste products. Without the circulatory system, your organs wouldn 't be able to function, causing death. With the blood vessels taking blood around the body, the heart pumps all this blood. According to Ballard, "Inside the heart there are four spaces
measuring the temperature, pressure, mass, and volume in a gaseous state. The equation used to determine the molar mass is derived from the Ideal Gas Law equation. The objective of this experiment aims to determine the molecular mass of a
athletes taking part in the risk culture are lifestyle choices. Athletes taking part in sport specific risk behaviours for victory is becoming a social health problem. The risks taken to search for the normalized image are because of social and self pressures as well as the use of performance enhancing drugs. We see in everyday life that athletes are pushing themselves to strive for victory, and a reason for this is because they feel pressured from society. People are continuing to search for the ideal
Volume and Temperature of a Gas By: Jasmine Camacho In this experiment I used both the Boyle’s and the Charles gas laws. Boyle's law states “the volume of a given quantity of a gas varies inversely as the pressure, the temperature remaining constant”. The formula used to help complete this process is PV=constant. Charles law help explain the relationship between temperature and gas volume. And the formula for this is V/T=constant. For this experiment I used the ideal gas law; pV=nRT.
states that the number of moles are proportional to the volume of a gas at a constant temperature and pressure. V = kn where k is the constant of proportionality. Avogadro introduces the idea of particles and how they combine and react in a chemical reaction. A soft drink is an example of Avogadro’s law. When the soft drink is shaken molecules will be released into the air. Therefore the pressure in the bottle is proportional to the number of moles of molecules in the bottle. Boyle’s Law published
Determining the Molar Volume of a Gas Lab Report The purpose of the experiment is to determine the molar volume of hydrogen gas at standard pressure and temperature. Excess hydrochloric acid was placed in a eudiometer and decanted with deionized water. A piece of magnesium ribbon was trapped in a copper wire cage in the eudiometer in order to keep it in place as the more dense hydrochloric acid diffused downward in the inverted eudiometer. The eudiometer was placed in a water bath and the magnesium
“P1V1 = P2V2” shows that as the volume increases, the pressure of the gas decreases in proportion, as long as the temperature stays the same. The relationship between pressure and volume was first noticed by mathematician and astronomer Richard Towneley and experimenter Henry Power. Robert Boyle, a chemist and physicist, confirmed the discovery and published the results in 1662. According to science historians, Boyle’s assistant, Robert Hooke, built the experimental rig. The law is based on air
Kaydyn Dillbeck IDLA Physical Science 10/26/14 Questions for U4A1 Section 1: 1. Kinetic molecular theory- used to explain the behavior of gases and is based upon the following postulates: • Gases are composed of a many particles that behave like hard spherical objects in a state of constant, random motion. • These particles move in a straight line until they collide with another particle or the walls of the container. • These particles are much smaller than the distance between particles,
The goal of this experiment was to use gas-forming reactions to find the best ratio of oxygen to hydrogen for a combustion reaction in order to launch the pipet rocket the farthest. The original hypothesis was that a 2:1 oxygen to hydrogen ratio would result in the farthest launch of the rockets when oxygen added first to the reaction. This hypothesis has been disproven; it has been found through trials that a 1:2 oxygen to hydrogen ratio with the addition of oxygen to the reaction first yields the
. Introduction Vapor pressure is the tendency of the liquid to evaporate and the amount of gas at equilibrium, while vapor is when molecules move from a liquid phase to a gaseous state. Vapor is basically what liquid produces after it starts evaporating. Liquids evaporate because some portions of their molecules have sufficient energy to flee from the liquid phase and become vapor. Some liquids even evaporate faster than other liquids. This is because some of these liquids can be more volatile
Helen Vasquez Chan Research paper My science project is to make an Air Pressure Car move by using the pressure of the chemical reaction of baking soda and vinegar. I want my car to travel a fixed distance in a fixed amount of time and for that I need the right type of nozzle that will not let all of the baking soda and vinegar out all at once. The mixture of both baking soda and vinegar actually creates carbon dioxide. This mixture is actually a two-step process. The first step is as they
blood vessels. The Structure and Functions of Blood Vessels ARTERIES The walls of arteries contain smooth muscle fibre that contract and relax under the instructions of the sympathetic nervous system. The functions of the arteries are: transport blood away from the heart and transport oxygenated blood only. Arteries have four different parts, which are; lumen, endothelium, smooth muscle and connective tissue. LUMEN=the lumen of arteries is relatively narrow to maintain high blood pressure. ENDOTHELIUM=forms
There are three major types of blood vessels: arteries, capillaries, and veins, and they all differ in their histological features. Arteries are the thickest blood vessels of the three. They have a tunica intima which has an internal elastic lamina and endothelium (simple squamous epithelium), a tunica media, an external elastic lamina, and a tunica externa or adventitia. Because arteries are built to withstand pressure and stretching, they could be elastic or muscular arteries. It depends on the
term blood pressure and describe the role it plays in the circulatory system. Describe the conditions high and low blood pressure. According to Blood Pressure UK, when your heart beats it pumps blood around your body to give it the energy and oxygen it needs. As the blood moves, it pushes against the sides of the blood vessels. The strength of this pushing is known as blood pressure. If your blood pressure is too high it puts extra strain on your arteries and your heart. Blood pressure is recorded
The function of the pulmonary artery is to pump deoxygenated blood to the lungs from the heart to become oxygenated. The pressure inside the pulmonary artery is very low, although blood here is at a slightly higher pressure than the blood in the pulmonary vein, and this is reflected as the walls of the artery are significantly thinner than the walls of a corresponding artery, for example, the aorta. The walls of the pulmonary artery contain a large amount of elastic fibres in order to maintain the
when an injury occurs to a blood vessel, causing bleeding the platelets start to stick to the injured blood vessel and release chemicals to attract other platelets. 4. Then as more platelets start sticking together they soon form a temporary clot V. The blood vessels guide blood and help the blood travels through our body. A. Each vessel has a essential job that it has to do in order for the system to form
envisioned to experimentally authenticate the theoretic formulations leading hydrostatic force and pressure middle on flooded flat superficial. The impartial of this laboratory is to regulate the hydrostatic insertion interim on plane superficial engrossed in water when the surface is partially submerged or fully submerged. Also to determine the untried center of pressure and the theoretic center of pressure for every of the trials executed. Introduction: When the quadrant is engrossed in water, it is