Human Circulatory System Flashcards
Location of human heart.
Located in thoracic cavity between 2 lungs, tilted towards left
Heart is protected by?
2 layered Pericardium.
Name the 2 layers of protective Pericardium.
Outer parietal and inner visceral
Where is Pericardial fluid present ?
Pericardial cavity
What are the names of the upper and lower chamber of heart.
2 upper: Atria
2 lower:Ventricles
What is the name of the muscular wall between atrias and ventricles.
Compare thickness.
Between atrias- Interatrial Septum
Between ventricles- Interventricular septum
Interventricular septum>Interatrial septum
What is the name of the thick fibrous wall present between same side Chambers?
Atrio ventricular septum
Name the AV valves with location?
Between R.atrium and R.ventricle- Tricuspid valve
Between L.atrium and L.ventricle- Bicuspid/Mitral valve
What is Chordae tenidae?
Function of it.
Special fibrous cords attached to the flaps of Bicuspid and Tricuspid valve
Prevent AV valves from collapsing during powerful ventricular contraction
The AV valves are connected with ventricles with which muscles?
Papillary muscles
Where are semilunars valves present? Shape of the valves?
Function?
Points where pulmonary artery and aorta leaves heart.
Half moon shaped
Prevents blood from getting back into ventricles
Function and position of pulmonary artery.
Right ventricle
De o2 blood to lungs
Function and position of Aorta?
Left ventricle
Carries o2 blood to all body parts.
Position,function and numbers of venae cava.
R atrium one Superior and one inferior
De o2 blood to R atrium from coronary sinus
Position,function and numbers of pulmonary veins.
Left atrium
O2 blood to L atrium
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