Borders, Surfaces and Chambers Flashcards
How many borders does the heart have?
Four
What is the right border of the heart?
The right atrium
What is the left border of the heart?
Left ventricle and apex (formed by left ventricle)
What is the inferior border of the heart?
2/3rd R ventricle and 1/3rd left ventricle
What is the superior border of the heart?
Right atrium, left atrium and great vessels
How many surfaces does a heart have?
3
What forms the sternocostal surface?
Right atrium, right ventricle, left apex
What forms the diaphragmatic (inferior) surface?
Left and right ventricle
What forms the posterior surface (base)?
Left atrium and part of right atrium
How many chambers foes the heart have?
Four
What are the four chambers in the heart?
R & L atrium
R & L ventricle
What seperates the left and right chambers of the heart?
Septum - a wall of muscle
What can be found between chambers and what is their role?
Valves made of thin but strong connective tissue
What are the four valves called?
Tricuspid Valve
Pulmonary Valve
Mitral Valve
Aortic Valve
