Cardiovascular System Flashcards
What is the relationship between time and distance with regard to diffusion?
T is proportional to d squared
Define perfusion
- Rate of Blood Flow
What is the approximate Cardiac Output at rest?
- 5 Litres per Minute
Which organs have an absolute requirement?
Does not vary with activity
- Brain
- Kidneys
Which of the vessels have the greatest capacity to store blood?
- Veins
What is the anatomical position of the heart?
- Centre of the chest, posterior to the sternum, anterior to the oesophagus
What is the function of the pericardium?
- Protection of heart and great vessels
- Lubrication
Describe the layers of pericardium
- Outer fibrous layer covers heart and great vessels. Continuous with the diaphragm. This layer is covered by the parietal layer of serous pericardium
- Visceral layer in continuum with cardiac muscle.
What is the function of serous fluid in the pericardium?
- Provides lubrication, preventing friction
Which chamber of the heart does blood enter from the left and right pulmonary veins?
- Left Atrium
Where is the bicuspid valve located in the heart?
- Between the left atrium and ventricle
Into which chamber do the inferior and superior Vena Cava direct blood?
- Right Atrium
Where does the Pulmonary Artery take blood?
- Lungs
Where is the origin of the left and right coronary arteries?
- Aortic sinus
Name the veins that drain into the coronary sinus
- Great, Middle and Small Cardiac Veins
