Circulation Physiology Pre-Lab

Circulation Physiology Pre-Lab - Chris Dayal M arch 10,...

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Chris Dayal March 10, 2011 AP Biology Period 2/3 Circulation Physiology Pre-Lab 1. What changes occur, in reference to the circulatory system, when you exercise? Due to the fact that the body needs more oxygen to use while exercising, your blood carries oxygen around your body to meet the sufficient needs of your exercise intensity hence why you breathe more while exercising more. This increases the rate of reactions in the circulatory system. In addition, your body needs to get in as much oxygen as possible, this means a higher heart rate as your heart is working and pumping faster to try and keep up with demands. 2. Describe the term “Blood Pressure”- what is it? Blood pressure is the pressure of the circulating blood against the walls of the blood vessels. It results from the systole of the left ventricle of the heart. Blood pressure is measured with a Sphygmomanometer Blood pressure is sometimes measured for a quick evaluation of a person's health. Adult blood pressure is considered normal at 120/80 where the first number is the systolic pressure and the second is the diastolic pressure.
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Circulation Physiology Pre-Lab - Chris Dayal M arch 10,...

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