Heart Facts
Beating of heart begins
What is 4 weeks gestation
These are the receiving chambers
What are the right and left Atria
This side of the heart receives deoxygenated blood
What is the right side?
Heart Sounds are created by the closing of these
What are valves?
These structures generate and conduct impulses that allow for atrial and ventricular contraction.
What are SA node, AV node, Bundle of His and Purkinje fibers?
These carry oxygenated blood away from the heart
What are arteries?
Cardiac muscle
What is Myocardium?
Theses are the Discharging chambers
What are the ventricles?
This side of the heart receives oxygenated blood
What is the left side?
These are the 2 distinct sounds made when listening to the heart
What are Lub-Dup?
This structure spreads the impulse to the rest of the ventricle along the edges of the chambers
What are the Purkinje fibers?
These carry de-oxygenated blood back to the heart
What are veins?
Heart is the size of this
What is a closed fist?
This is at the opening of the right atrium into the right ventricle
What is the tricuspid valve?
Each complete beat of the heart is called this
What is a Cardiac Cycle?
Lub sound is caused by this - these are closing
What is closure of AV valves during contraction of ventricles?
This part of the conduction system is associated with depolarization of the ventricles
What is the QRS complex?
These are transported by blood
What are O2, CO2 and hormones?
The heart is located in what cavity
What is the thoracic cavity?
This is at the opening of the left atrium into the left ventricle
What is the bicuspid/mitral valve?
Blood enters the right atria through this
What are the Superior and Inferior Vena Cava?
This is an Abnormal heart sound caused by abnormal valves, an extra sound
What is a heart murmur?
These are the normal waves seen on an EKG
What are the P wave, QRS complex and the T wave?
These blood cells live for 120 days
What are Erythrocytes?
Beats on average this many times
What is 72bpm?
This is at the beginning of the pulmonary artery
What is the pulmonary semilunar valve?
This is the 1st vessel of systemic circulation
What is the Aorta?
The first heart sound is the closing of these.
What are mitral and tricuspid valves?
This wave is associated with the re-polarization of the ventricles
What is the T wave?
This part of the composition of blood is important for the clotting process.
What are Thrombocytes?