15 terms

Cardiovascular System

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Cardiovascular Disease is the #1 cause of what in the U.S.
Death in the U.S.
How many chambers does the heart have?
4 chambers
What are the upper chambers of the heart referred to as?
Atria. There is a Right Atrium and a Left Atrium.
What are the lower chambers of the heart referred to as?
Ventricles. There is a Right Ventricle and a Left Ventricle.
What chamber forms most of the anterior surface of the heart?
Right Ventricle
What is the Inter-ventricular septum?
wall between the 2 ventricles
The left ventricle is usually spared in trauma because:
It forms a small part of the Anterior Surface of the Heart.The left lung covers this part of the left ventricle and hence protects it.
What chamber of the heart forms the base of the heart?
Left Atrium
What is the posterior most chamber of the heart?
Left Atrium
If in a cardiovascular disease the heart undergoes enlargement, what will occur?
The Left Atrium will push on the esophagus and/or the trachea and the patient will have difficulty in Deglutation (Swallowing)/breathing.
The heart's apex is deviated to what side?
The left (Located in the Left 5th intercostal space).
Pericardium
the membrane that encloses the heart
How many layers of the Pericardium are there in the heart?
There are 3 layers of the pericardium in the heart
(from outermost to innermost):
-Fibrous (Fibrous)
-Parietal (Serous)
-Visceral (Serous)
What are the features of circulation in intrauterine lives that are not found in adult circulation?
-Fetal circulation
-No lung function
-Oxygen comes from maternal circulation via the placenta
-Presence of "shunts" (passageway that allows passage of fluid from one part of the circulation to another) that shift the blood flow from one side of the other side; if these shunts fail to close at birth, it can result in Congenital Anomalies
How many types of shunts are there in the Fetal Circulation?
There are 3 types.