Animal Physiology Flashcards
Where does the red and blue blood cells get pumped to?
The red blood cells get sent to all the organs of the body as they are oxygenated and the blue ones get transported to the lungs as they are yet to be oxygenated
What is the function of the heart?
The function of the heart is to deliver oxygen to all the parts of the body by pumping it
Which side of the heart pumps the blood to where in the body?
The left side of the heart pumps the oxygenated blood to all organs of the body and the right side to the lungs
Which side of the heart has a thicker muscle wall and why?
The left side of the heart has a thicker muscle wall as it has to pump the blood further than the right side
What are the valves in your heart for?
The valves are to stop blood flowing backwards, so whenever the heart contracts, the valves open
What sets the rhythm of your heart?
The natural pacemaker
Who was William Withering?
William Withering was an English doctor who had an extensive knowledge of plants, he discovered that the cure for a disease called dropsy was to extract a drug from the leaves of a foxglove plant
What is a heart attack?
A heart attack is when fat clogs up the coronary arteries and the blood stops travelling
Who was William Harvey?
William Harvey was an English doctor who discovered the double circularly system (the blood gets pumped out of the heart and then back in)
Describe the process of gas exchange in the aveolus
The deoxygenated blood enters from the heart, the alveolus takes in the air, the red blood cells pick up oxygen and take it to the heart, and finally the exhaled air leaves the body
what is the function of capillaries?
Capillaries are used to connect arteries and veins, they carry both oxygenated and deoxygenated blood, they have no valves, the walls of them are very thin, they are very thin on the inside and have low blood pressure
What are veins used for?
Veins are used for carrying blood to the heart, they carry deoxygenated blood, they have valves to stop the back-flow of blood, they have a thin layer of muscle, a lot of space inside then and a high blood pressure
What are arteries used for?
Arteries are used for carrying oxygenated blood away from the heart, they have a thick layer of muscle and a lot of space inside them and the blood flows at a high pressure due to the heart beating
