Test Bank Solution Manual for Cardiovascular System Rated 100%
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Course
Cardiovascular
Institution
Cardiovascular
Test Bank Solution Manual for Cardiovascular System Rated 100%
What is the function of the cardiovascular system? - Answers Transportation
About how much does the heart weigh and what is it's size? - Answers Less than a pound and the size of a fist
Mediastinum - Answers Space between the lungs ...
Test Bank Solution Manual for Cardiovascular System Rated 100%
What is the function of the cardiovascular system? - Answers Transportation
About how much does the heart weigh and what is it's size? - Answers Less than a pound and the size of
a fist
Mediastinum - Answers Space between the lungs where the heart lies
Apex - Answers The pointed end of the heart that rests on the diaphragm (it is directed toward the left
hip)
Base - Answers Top part of the heart that is broad
Pericardium - Answers Double-walled sac that the heart sits in and contains serous fluid between the
layers to prevent friction
Pericarditis - Answers Inflammation of the pericardium that results in the decrease in the serous fluid
What are the 3 layers of the heart wall? - Answers 1. Epicardium
2. Myocardium
3. Endocardium
Endocardium - Answers A thin sheet of endothelium that lines the heart chambers, it is continuous with
the linings of the blood vessels (innermost layer of the heart wall)
How many hollow chambers does the heart has? - Answers 4
Atria - Answers Receiving chambers, blood comes into the heart
Where are the atria located? - Answers Superior
Ventricles - Answers Bottom chambers that send out blood
Interatrial or intraventricular septum - Answers Divides the heart longitudinally
Which side of the heart receives oxygen-poor blood from the veins? - Answers The Right Side
Superior and Inferior Venae Cavae - Answers The veins that bring in blood from the upper and lower
parts of the body to the heart
Pulmonary Arteries - Answers Carry blood to the lungs where oxygen is picked up and carbon dioxide is
unloaded. (Takes blood to the lungs)
Pulmonary Vein - Answers Vein that brings blood back from the lungs to the heart
Aorta - Answers the largest artery in the body that sends out oxygenated blood to the body
, How many valves are contained within the heart? - Answers 4
What is the purpose of the valves? - Answers Allows blood to flow in only one direction through the
heart chambers (from the atria through the ventricles)
Where are the Atrioventricula Valves (AV) located? - Answers Between the atrial and the ventricular
chambers on each side.
What do the AV nodes do? - Answers They prevent backflow into the atria when the ventricles contract
What is the left AV node called? - Answers Bicuspid or mitral valve
How many flaps does the bicuspid valve have? - Answers 2
What is the right AV node called? - Answers Tricuspid Valve
How many flaps does the tricuspid valve have? - Answers 3
Semilunar valves - Answers Set of valves that guards the bases of the 2 large arteries leaving the
ventricular chambers
How many leaflets do the semilunar valves have? - Answers 3
Left Aortic - Answers three half-moon shaped cusps (flaps)
Right Pulmonic - Answers three half-moon shaped cusps (flaps)
When do the AV valves open? - Answers During heart relaxation
When are the semilunar valves closed? - Answers During heart relaxation
Valvular Stenosis - Answers When the valve flaps become stiff
Endocarditis - Answers Bacterial infection of endocardium (Enlarges Heart)
Coronary Arteries - Answers Branch from the base of the aorta and encircle the heart
Angina Pectoris - Answers When the myocardium is deprived of oxygen and results in a crushing chest
pain.
Myocardial Infacrtion - Answers Heart Attack, heart cells die because of prolonges oxygen deprivation
Why are the walls of the atria thicker? - Answers They carry high pressure
How much blood does the heart pump in one day? - Answers It pushed the body's supply of 6 quarts of
blood (6 liters) through the blood vessels over 1000 times, meaning it actually pumps about 6000 quarts
of blood in a single day.
What are the 2 systems that act to regulate the heart activity? - Answers 1. Autonomic Nervous System
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