Anatomy of the Heart
How many chambers are there?
What is 4
What is an EKG?
What is Composite of all electrical changes in heart detected, amplified and recorded by electrodes on wrists, ankles, and chest
What is the pacemaker of the heart?
What is SA node
What are vessels that carry blood to
heart?
What are veins
Blood in the the right ventricle will travel to which structure next?
What is pulmonary trunk
What is the function of the valves?
What is to keep blood flowing in one direction!
When the SA node fires; atrial depolarization
What is P wave
What is known as “bundle of His”?
What is Atrioventricular (AV) bundle
Where does the blood flow after the pulmonary veins?
What is the left atrium
True or False: when pressure decreases volume decreases
What is false
What is the name for the remnant structure from when you were a newborn?
What is fossa ovalis
What happens during the QRS complex?
ventricular depolarization and atrial repolarization
How is the heartbeat coordinated?
What is the cardiac conduction system
What is the biggest artery?
What is the aorta
What allows cardiomyocytes to stimulate
their neighbors?
What is electrical linkages/gap junctions
Name for the opening inside the right atrium
What is the coronary sinus
True or False: T wave is ventricular repolarization
What is true
What is located on the interatrial septum, acts as a electrical gateway to ventricles?
Which is a layer of endothelial cells which is continuous with endocardium of heart and is selectively permeable?
What is tunica interna
Cardiac muscle cells (cardiomyocytes)
are connected to each other by ____________
What is intercalated disks
True or False: pulmonary trunk and pulmonary artery (interchangeable)
What is False
What does it mean if you have a nodal rhythm? (3 things)
What is lack of p waves, absence of SA node activity and slower heartbeat
What is the last step of the cardiac conduction system?
What is purkinje fibers distribute excitation through ventricular myocardium
List the Tunica from deepest to most superficial
What is Tunica Interna, Tunica Media, Tunica Extrena
The aortic semilunar valve will open when _________
What is when ventricular pressure is greater than aortic pressure