Pericardium &
Heart Wall
Heart Wall
The name of the connective tissue that surrounds the heart:
Pericardium
What valve is located between the right atrium and right ventricle?
Tricuspid valve
What is the structure known as the hearts pace maker called?
SA node
Name the upper chambers of the heart that receive blood from veins:
Atria
What is the hollow passageway that blood flows through?
lumen
The tough outermost layer of the pericardium is called the:
Fibrous pericardium
What is another name for the bicuspid valve?
Mitral
What are the fibers that distribute electrical impulses through the ventricular walls?
Purkinje fibers
Name the lower chambers of the heart that pump blood out of the heart.
Ventricles
What are the three categories of vessels that make up the cardiovascular system?
Arteries
Veins
Capillaries
What is the thick muscular layer of the heart called?
myocardium
Name the 4 valves inside the heart in the order blood flows through them (Right to Left)
Tricuspid
Pulmonary
Bicuspid/mitral
Aortic
Define diastole and systole
Diastole- Relaxation
Systole-Contraction
What is the muscular layer of the heart wall responsible for contractions called?
Myocardium
Define blood pressure.
force exerted by blood on artery walls
What is the name for the fluid filled space between pericardial layers that reduces friction when the heart beats?
Pericardial Cavity
What structures anchor atrioventricular valves and prevent inversion?
Chordate tendineae and papillary muscles
What is the order of the heart conduction system?
SA node-AV node-Bundle of His-Bundle branches-Purkinje fibers
What is the name of the structure that separates the left and right sides of the heart?
The Septum
Define; erythrocytes, leukocytes, and thrombocytes
erythrocytes= red blood cells
leukocytes= white blood cells
thrombocytes= platelets/aid in blood clotting
List the three layers of the heart wall from outermost to innermost.
epicardium
myocardium
endocardium
What is the pathway blood flows through the heart?
Right atrium-Right ventricle-pulmonary artery- lungs-pulmonary vein-left atrium-left ventricle-aorta/body
What is the order of the cardiac cycle?
(Diastole and systole phases)
Diastole
atrial systole
ventricular systole
isovolumetric relaxation/early diastole
What is the name for the part of the heart that forms the pointed inferior tip?
Apex
Name 3 common pulse sites and point to their location on the body.
temporal, carotid, apical, brachial, radial, femoral, popliteal, posterior tibial