Restate your predictions that were correct and give data from your experiment that support them. Restate your predictions that were not correct and correct them, giving supporting data from your experiment that supports your corrections. During exercise HR, SV, and CO will all increase due to the increased demand of oxygen needed throughout the body as well as the increased pumping action of the heart having to work faster to get blood to the tissues during exercise Application 1. We measured the stroke volume of the left ventricle. What was the average stroke volume of the right ventricle at rest and
The heart needs to pump faster or harder to complete this job. During a 400m race, this would enhance performance by removing unnecessary waste products from the muscles and supplying more oxygen to the muscles. Increase Stroke Volume and Cardiac Output Stroke volume is the amount of blood pumped out of one ventricle with each beat. Cardiac output is the amount of blood pumped out of the heart every minute. It is calculated by stroke volume x heart rate.
Another reason why my pulse rate increased was because my body was getting rid of waste gases which are CO2 and H2O that are products of respiration. My respiration rate increased because I was using up lots of energy and I also was producing more carbon dioxide. Therefore I had to increase my oxygen intake and I also had to get rid of the carbon dioxide more quickly. My blood pressure increased because when my heart was pumping faster the amount of blood that was going through my vessels increased which put a strain on her vessels. My temperature increased because of the high amount of heat I produced.
UNIT 3 OUTCOME 2 TOPIC 4 ACUTE RESPONSES TO EXERCISE FOR STARTERS………. [pic] ____________________________________________________________ _________ EXTRA THINGS THAT I HAVE HEARD or PERHAPS SEEN…………………………. |[pic] |[pic] | |Changes undertook by the respiratory system during exercise: | |Minute ventilation (the amount of air moving in and out of the lungs per minute, this increases in direct proportion to the | |metabolic demands of the body) | |Minute
9 minute mile Part III: Principle of Specificity What part of the body did you exercise or overload when performing Cardiovascular Fitness exercises such as the one-mile run? Your cardiovascular system, your heart, your legs, your respiratory system, and your legs Part IV: Principle of Overload By increasing your pace ((intensity)[->0]) , you made your heart beat faster and work harder. This is called overload. Increasing the number of days you jog from two days to three days is another way of overloading your body. A third way to overload is to increase the distance covered.
Heart Rate and Physical Fitness The circulatory system is responsible for the internal transport of many vital substances in humans, including oxygen, carbon dioxide, and nutrients. The components of the circulatory system include the heart, blood vessels, and blood. Heartbeats result from electrical stimulation of the heart cells by the pacemaker, located in the heart’s inner wall of the right atrium. Although the electrical activity of the pacemaker originates from within the heart, the rhythmic sequence of impulses produced by the pacemaker is influenced by nerves outside the heart. Many things might affect heart rate, including the physical fitness of the individual, the presence of drugs such as caffeine or nicotine in the blood, and
The blood consists of two major portions: blood cells and plasma. The functions of the cardiovascular system: the cardiovascular system is so important to our body, that if it stops for a minute, rapid death will occur. The flow of blood is necessary for existence of life. If the flow of blood stopped, life will stop. Cardiovascular system has three main functions: Transport of nutrients, oxygen and hormones to cells throughout our body and removal of metabolic wastes such as (carbon dioxide and nitrogenous wastes).
Your legs. Your respiratory system, your lungs Part IV: Principle of Overload By increasing your pace ((intensity)) , you made your heart beat faster and work harder. This is called overload. Increasing the number of days you jog from two days to three days is another way of overloading your body. A third way to overload is to increase the distance covered.
Case Study Questions: 1.) Explain the renin-angiotensin-aldosterone system. When the kidneys sense decreased profusion pressure, they try to increase this pressure by increasing blood volume through the renin-angiotension-aldosterone system. Once the decreased pressure is sensed renin is released, which increases conversion of angiotension to angiotension I. Angiotension I is in turn converted to angiotension II by the angiontension converting enzyme (ACE). Angiotension II causes vasoconstriction, which raises the blood pressure.
* Mechanism of action: synthetic catecholamine with primarily beta1-adrenergic activity, acting as an inotropic vasopressor. Increases myocardial contractility, cardiac index, oxygen delivery, and oxygen consumption and increases cardiac output. Effects are variable due to differences in metabolism and renal excretion. * Expected outcome: increased systemic blood pressure and improved perfusion, especially related to myocardial dysfunction. Epinephrine * Begin continuous infusion of Epinephrine at 0.1mcg/kg/minute to infuse via