Handling any glassware for example beakers or petri dishes with care. Action potential, Blood, Cardiology 811 Words 3 Pages Cardiovascular System: The Heart Laszlo Vass, Ed. It was hard for us to measure the heartbeat of sprinting, and it took us a lot of time. Therefore with more demanding exercises eg. When the body is resting, it needs lower amount of energy.
It is used as a stimulant to human the central nervous system by increasing the stimulatory of the neurotransmitters, however high levels of caffeine to the body can cause effects of insomnia, stress, anxiety, weight loos or high blood pressure. Homeostasis is the maintaining of a balanced condition in the body despite changing external conditions or demands on the body. Test your heart rate 3 times before you run each for 1 minute, using the blood pressure cuff 2. The second prediction, the faster the pace of the exercise the more the heart rate increases. They then will do this for one minute, wait till their carotid pulse is back to its rest rate and then for 2 minutes, again wait for the pulse to fall to its normal rate and then carry this out for the 3rd and last time for 3 minutes. Research: In the circulatory system lab, students observed how physical activity affects blood pressure and heart rate.
This experiment shows the biological principles, and how to record and produce data of a quality standard. Immediately after placing the Daphnia onto the slide add pond water was added or the first concentration of the caffeine but adding the same volume each time just different concentration. The fist-sized heart sits in its own sac the pericardium in the middle of the chest under the sternum. Rest for the heart rate to return normal 12. Materials: There was only a few materials used in this lab: -Stopwatch. Atrial fibrillation, Bradycardia, Cardiac electrophysiology 1674 Words 5 Pages One of the main learning experiences of this lab is to learn the importance of calibrating a sensor.
Evaluation: The part of the method went really well was that we made steps for recovering time. But the more demanding activities we are doing, the more energy is needed. After exercising for 1 minute on the stepper, results showed there was no difference in the heart rate of both contestants. Artery, Blood, Circulatory system 1441 Words 5 Pages Discussion Heart Rate Our hypothesis stated 1. The heart is the pump which makes the blood circulate in the body. If no, propose an explanation for why your results might have been different.
Use the supplemental guide to writing a scientific report to help you produce this report. This value is an important measure of cardiovascular fitness, since people who return to resting heart rate faster have a more efficient heart and are at lower risk of cardiovascular disease and mortality. However, this time it is done for 3 minutes to see how the heart beat varies with intensity of exercise. The resting heart rate of those who exercise is also slower, because less effort is needed to pump blood. The heart rate is a term describing the regularity of the cardiac cycle. Step 4: The process is repeated for the third time.
Last accessed 16 Feb 2013. In this case, you may wish to compare a subject's heart rate under the. Write down the data 16. The general name for the process that maintains the internal body temperature in humans is You correctly answered: a. First, I will draw out a table to record my results, and then I will measure my resting heart rate for one minute. So in next lab I would make sure that the persons are relaxing.
Hypothesis: As the level of physical exercise increases, the pulse rate will also increase. To begin this lab we chose a participant, and then hooked their finger. Lab Report A Lab Report B pH 7. The lab report consists of three sections: Data, Exploration, and Lab Summary. On the other hand Shazanah likes eating her junk food which builds fatty deposits which causes her heart rate to go so high because of the demand.
Take the blood pressure and heart rate early enough that you will be finished. Pulse Measurement: Observations: Data Table 1. Each student is responsible for completing and turning in a report. The waste products are water, carbon dioxide and heat. What is the driving force for blood flow? Step-by-step visual directions for the corn seedling experiment. At the start of the experiment, when the power is still at 0, the subject's heart rate is 93 beats per minute, the lactate 1.