Hello, I'm Jeremy Ward.
I was Head of Physiology at King's College London for 10 years
and I researched into the cardiovascular system and respiratory system.
I'm going to be giving an "Introduction to the Cardiovascular System".
The areas I'm going to talk about.
What is the cardiovascular system?
Why is it important?
The basic organization, structure and function of the heart and vasculature,
and important questions yet to be answered.
By convention, blood pressure is still usually measured in millimeters of mercury or Torr not SI units kilopascals.
So I will be following this convention throughout this lecture.
So what is the cardiovascular system?
It consists of the heart and the vasculature as one might expect.
The heart pumps oxygenated blood through the arteries,
so it can be distributed to the tissue metabolism.
Note, that arteries always go from the heart,
veins go to the heart.
The veins collect deoxygenated blood from
the tissues and return it to the heart and lungs for re-oxygenation.
A parallel series of vessels( lymphatics) collects
excess fluid from the tissues and returns it to the circulation.