And smoking, and their effect on the respiratory

The aim of this investigation is to study the effects that

Smoking and exercise will have on the Respiratory and Circulatory

System. I will do this by running up and down a flight of stairs, I will

repeat this twice once with a cigarette and once without.

To make this a fair investigation I will use the same set of stairs

Wear the same clothes and have the same amount of rest time for both investigations, the only thing that will change is I will have a cigarette on the second investigation.

I believe that my pulse rate will increase more when I have had the cigarette, this is because Nicotine constricts terminal bronchioles , which decreases the respiratory efficiency in smokers.

To start with I will take my pulse at resting rate, to do this place the middle and forth finger onto the inside of the wrist until the pulse rate could be felt. I then timed it for 15 seconds counting each beat at the same time , I then times this by 4 to get the bpm.

Smoking may cause a person to become easily “winded” with even moderate exercise because several factors decrease respiratory efficiency in smokers, nicotine constricts terminal bronchioles, which decreases airflow into and out of the lungs.

Ventricular systole, both ventricles contract forcing blood through the pulmonary artery to the lungs and through the aorta to the rest of the body, this takes 0.3 seconds.

If I had been walking instead of running up and down the stairs then the pulse rate wouldn’t have increased as much because I would not be using the same amount of energy, the more energy

Aerobics, any activity that works large body muscles for at least 20 minutes elevates cardiac output and accelerates metabolic rate.

Some topics in this essay:
According Collins, Circulatory System, , pulse rate, cardiac output, respiratory efficiency smokers, constricts terminal bronchioles, contract forcing blood, systole ventricles contract, terminal bronchioles decreases, airflow lungs, nicotine constricts, systole ventricles, heart harder, respiratory system, irritants smoke, constricts terminal, flight stairs,