1.2 Cardio Vascular And Respiriatory Systems Flashcards
What does the pulmonary circuit do?
-Carries deoxygenated blood to the lungs
-oxygenated blood back to the heart
What does the systemic circuit do?
-Carries oxygenated blood to the body
-deoxygenated blood back to the heart
What’s the valve between the right atrium and right ventricle called?
Tricuspid valve
Where do you find the tricuspid valves?
Between right atrium and right ventricle
What are valves between the left atrium and left ventricle?
Bicuspid valves
Where do I find bicuspid valves?
Between left atrium and left ventricle
What are the valves that exit the heart called?
Semi lunar valves
What does myogenic mean?
The capacity of the heart to generate its own electrical impulse which causes the cardiac muscle to contract
Is the cardiac muscle myogenic?
Yes
What are the five structures in the conduction system?
-SA Node
-AV Node
-Bundle of His
-Bundle branches
-purkinje fibres
What is cardiac diastole?
The relaxation of the cardiac muscle.
Firstly of the atria
Then the ventricles
What is cardiac systole?
The contraction of the cardiac muscle
Firstly the stirs
Then the ventricles
How do you workout cardiac output? Litres per min
Heart Rate X Stroke Volume
What is venous return?
The return of the blood to the right atria through the veins
What is stroke volume?
The volume of blood ejected from the left ventricle per beat
