The four chambers of the heart are?
Two atria and two ventricles
What does the pulmonary artery do?
Carries deoxygenated blood to lungs to pick up more oxygen
What is the function of the fibrous pericardium?
Provides protection and anchors the heart
How many layers does the heart have?
Three
The heartbeat is one _____ and _____ of the heart muscle
Contraction;Relaxation
What structure separates the two sides of the heart?
Septum
What does the left atrium do?
It receives oxygenated blood from lungs and is covered by the auricle
What is the function of the serous pericardium?
Produces lubricating fluid
The pulmonary circuit does what?
Carries blood from heart to lungs and back
A diastole is what?
Relaxation of the heart and filling it with blood
Whats the function of valves within the heart?
Prevents blood from flowing backwards
What does the superior vena cava do?
It returns blood to the heart from the upper body.
Which layer of the heart is the thickest?
Endocardium
What does the systematic circuit do?
Carries blood from heart to body and back
What comes first in the oxygenated blood timeline?
Lungs
Where is the aorta?
The right AV valve is held in place by what?
Chordae tendneae
The ____ is pointed towards the left hip
Apex
The parietal pericardium does what?
Reduces friction
What is a systole?
Contraction of the heart
What is the apex?
Tip of the heart
The pulmonary artery does what?
Carries the deoxygenated blood to lungs to pick up more oxygen
The two loops that circulate blood back to the heart is?
Pulmonary circuit and the systematic circuit
The visceral pericardium is also known as what?
Epicardium
On average the heart beats about?
75 times per min