Scientific Revolution and the Human Body - MT2 - Part 3 Flashcards
What did William Harvey do?
He added the systemic circuit
What did Harvey conclude?
That blood circulates
- in both pulmonary and systemic
How did Harvey show there were 2 circuits?
He cut open a pig in a cold room to slow down the process to see how things worked
- interested in the movement of blood
Why didnt Harvey publish his work?
He didnt want the man at large to be his enemy because he hated controversy so he didnt go to print
- published in 1892
Why do veins have valves?
To ensure one way flow of blood
What can help move blood to the heart?
Skeletal muscles
What happens if you tie off an artery in a living animal?
The side towards the heart bulges
What happens if you tie off a vein in a living animal?
The side away from the heart bulges
Which way does blood move in veins?
Towards the heart
Which way does blood move in arteries?
Away from the heart
What is the first organ to hear about the food you eat?
Liver
What kind of organ is the liver?
Biochemical
How do tissues get nourishment?
By reusing and circulating blood
What did Galen propose about veins and arteries?
That there must be an invisible connection between arterioles and venules
What is the air that need to be distributed by the arteries? (3)
- Pneuma
- Vital spirits
- Innate heart
- O2 is still not fully understood
What is the connections between arterial system and the veinus system?
Arterioles and venules
What did Harveys work highlight?
The mechanical aspect of organismal function
What did Harveys work suggest?
Blood transfusions as a treatment for blood loss
- patients use to receive sheep’s blood in order to prevent blood loss
Mechanicism
Living processes are the consequence of fundamental laws of physics, mechanics and chemistry
- better for experiments
Vitalism
Living process depend upon a vital force that is not explainable in physical, mechanical or chemical terms
- natural way of thinking
- very hard to test
What is an example of a mechanicism?
Human beings
- but they alone possess a soul to direct their actions
Are animals mechanicisms?
No, because they dont have souls
What did Descartes think of the pineal gland?
Thought it was unique to the human body because this was where the soul connected to the body
According to Descartes, what is the universe?
Is a mechanical system
What is an example biological process?
Digestion of food
What evidence did Giovanni Borelli gather?
That digestion consists of the mechanical pulverization of food
