During heart relaxation (in between beats) the pressure inside the heart is _____. (high or low)
What is low?
Large blood vessel that carries blood away from the heart is called _______.
What is arota?
The valves located between the atria and the ventricles are know as________ valves.
What is atrioventricular (AV)?
The rate of blood flow increases if the vessel is ________. (short or long)
What is short?
The right AV valve is also known as the ___________.
What is the tricuspid valve?
The bottom-most potion of the heart is called the ____.
What is the apex?
When the ventricles contract, pushing blood through the semilunar valves, the AV valves ______. (close or open)
What is close?
The hepatic vein drains blood from the liver and returns it through the _________ vena cava. Hint: the liver is below the heart.
What is inferior?
The first heart sound "lub" is caused by the closing of the _________ valves. This sound is caused by the contraction of the ventricles.
What is atrioventricular (AV)?
Larger veins in the appendages have ________ to prevent the backflow of blood.
What are valves?
The rate of blood flow increases if blood viscosity is ____. (high or low)
What is low (thin blood)?
The pacemaker node that originates the electrical current of heart contraction.
What is the SA node?
The tricuspid valve is located between the ____________.
What is the right atrium and right ventricle?