Circulatory System Lab Report Essay Example

Circulatory System Lab Report Paper This will provide the blood with oxygen for the body. Oxygen can be entered through the mouth and the nose. (Author: Unknown, Year 2009 (Edited), Title: The Respiratory system, http://en. Wisped. Org/wick/Respiratory_system Date visited: 29/05/09) Heart Rates: The meaning pulse rate is exactly the same than a heart rate. The Pulse Rate/ Heart Rate is the dilation and contraction of the elastic muscular wall of the arteries. The Pulse Rate can be found in Arteries closer to the surface, for example; Carotid pulse in the neck and the Radial Pulse in the wrist. The heart rate can be increased or decreased for various reasons, For example; Exercise. The Harder and longer we exercise the more oxygenated blood is used by the cells, Therefore our heart rate increases so then oxygenated blood is pumped faster, as we exercise harder, The body uses more oxygen and inhales oxygen more frequently. This is because the cells in the body are working harder ND need fresh oxygenated blood faster to operate (Inhale to breathe in oxygen, Exhale to breathe out Carbon Dioxide). Group 1: activity Group 2: 30 Minutes No activity Aim: This experiment will prove how heart rates change with 30 minutes exercise a day Vs.. No exercise a week, and also the fitness levels after; gained and lost. Hypothesis: I think 30 minutes exercise a day will decrease the heart rate and increase fitness for Group 1. I think Group 2 will increase heart rate, decrease fitness and increase calories. Materials: Pen Record Sheets Stop watches Year 9 Students Method: Step 1: Students rested by lying down comfortably. We will write a custom essay sample on Circulatory System Lab Report specifically for you for only $16.38 $13.9/page Order now We will write a custom essay sample on Circulatory System Lab Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer We will write a custom essay sample on Circulatory System Lab Report specifically for you FOR ONLY $16.38 $13.9/page Hire Writer Step 2: Their pulse rate was measured for 15 seconds, then recorded. Steps: Students conducted 15 seconds of star jumps, then the pulse rate was recorded. Steps: Students conducted 1 5 seconds of star jumps, then the pulse rate was recorded. Step 5: Students conducted 15 seconds of star jumps, then the pulse rate was recorded. Step 6: Students conducted 15 seconds of star jumps, then the pulse rate was recorded. Step 7: Students conducted 15 seconds of star jumps, then the pulse rate was recorded. Step 8: Students rested by lying down or 15 seconds, then the pulse rate was recorded. Step 9: Students rested by lying down for 15 seconds, then the pulse rate was recorded. Step 10: Students rested by lying down for 15 seconds, then the pulse rate was recorded. Step 1 1: Students rested by lying down for 15 seconds, then the pulse rate was recorded. Step 12: Students rested by lying down for 15 seconds, then the pulse rate was recorded. (Each 15 seconds of each step represents % oaf minute, 15 seconds was then times by 4) (15 seconds X 4 = 60 seconds) Results: Personal average results: Pulse Description Pulse rate per 15 seconds X Resting Pulse (before exercise) 19 76 4 (Pulse rate per minute) After 1 minute exercise 27 After 2 minute exercise 33 After 3 minute exercise 38 After 4 minute exercise 40 After 5 minute exercise 44 108 132 152 160 176 After 1 minute recovery 112 After 2 minute recovery 96 After 3 minute recovery 88 After 4 minute recovery 19 76 After 5 minute recovery 19 76 (30 minutes activity) Group 1: The person would have a lower heart rate in which it would have increased slower and then decreased faster than group 2, and also much fitter. Group 1 results (Averages): Exercise duration Average Heart rates (30 Minis exercise) Resting pulse rate: 75 1 Minute exercise: 135 2 Minute exercise: 148 3 Minute exercise: 152 4 Minute exercise. 152 5 Minute exercise: 154 1 Minute recovery . 103 2 Minute recovery: 94 3 Minute recovery: 87 4 Minute recovery: 81 5 Minute recovery: 76 (No activity) Group 2: The person would have a much higher heart rate than group 1, not fit and likely to be normal obese (Weight). Group 2 results (Average): The results recorded in the heart rates were average to an average student. The results were similar. The differences had shown the fitness level. (The lower the heart rate the fitter, The higher the less fitter. The results recorded in the heart rates were higher than a frequent swimmer. The results were different than an average swimmer. Discussion: When exercise is conducted, Cells are forced to work harder in which, the cells will then need nutrients faster. When blood is pumped from the heart it travels to the lungs to get oxygen (oxygenated blood), then to the cells therefore cells will need nutrients faster so this process speeds up. The results were expected; every minute the average heart rate increased by at least 10 beats, however the heart rates went down roughly the same speed than when exercising.