Chapter 13 Flashcards
Blood in the aorta?
Was ejected from left ventricle, is rich in oxygenated blood, has just passed through a semilunar valve.
Blood in the pulmonary artery?
Has just passed through a semilunar valve
Blood that has passed through the bicuspid valve is in the?
Left ventricle
Volume of blood ejected from the ventricles during each beat?
Stroke volume
The pericardium is composed of?
Serous membrane
The tricuspid valve is located between the?
Right atrium and right ventricle
A pulse can only be felt in the?
Arteries
One way valves are found in which blood vessels?
Veins
The layer of the arteries and veins that contain smooth muscle tissue?
Tunica media
The INNERMOST layer of an artery or vein is called?
Tunica intima and endothelium
The OUTERMOST layer of an artery or vein is called?
Tunica adventitia
Blood vessels that carry blood towards the heart is?
Veins
Blood vessels that carry blood AWAY from the heart?
Arteries
QRS represents on a EKG is?
Depolarization of the ventricles
T waves represents?
Depolarization of the ventricles
The correct sequence for the conducting system is?
SA node, AV nodes, AV bundle, Purkinje fibers
The “pacemakers” for the heart is usually the?
Sinoatrial node (SA Node)
The electrical connectors between heart muscles cells are called?
Intercalated disks
The volume of blood ejected from the ventricles during each beat?
Stroke volume
The heart is supplied with blood by?
Arteries that branch directly from the aorta.
The right side of the heart?
Oxygen poor blood
The pulmonary veins return oxygen rich blood by?
Left atrium
The superior vena cava carries what?
Oxygen poor blood to the right atrium
The first lub dub sound is the closing of what?
Tricuspid and mitral valves
The heart valves are arranged with the?
Tricuspid and pulmonary semilunar valves on the right side of the heart
In the pumping action of the heart?
Atrial systole precedes ventricles systole
The pericardium is?
Is a sac surrounding the heart, has an outer layer called the parietal pericardium, has an inner layer called the epicardium
The outermost layer of the heart is called?
Epicardium / visceral pericardium
The innermost layer of the heart is called?
Endocardium
The upper chambers are?
Receiving chambers
The chambers of the heart include?
Two lower larger chambers called the ventricles
The heart is located?
Mostly to the left of the midline of the sternum.
