Term
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Definition
| The _________ _______ consists of the blood, heart, and blood vessels. |
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Term
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Definition
| The heart is the pump that circulates the blood through an estimated ______ miles of blood vessels |
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Term
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Definition
| The heart is found in the thoracic cavity in the midline partition called |
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Term
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Definition
| is a tough, fibrous, double-layered connective tissue sac which surrounds the heart. |
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Term
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Definition
| outer layer consisting of fibrous connective tissue |
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Term
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Definition
| inner layer consisting of a single layer of transparent epithelial cells |
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Term
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Definition
| adheres to the fibrous pericardium |
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Term
| Visceral pericardium (aka: Epicardium) |
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Definition
| adheres to the heart surface |
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Term
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Definition
| space between the parietal and visceral pericardia; contains serous pericardial fluid |
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Term
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Definition
| is composed of cardiac muscle and is immediately deep to the epicardium |
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Term
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Definition
| layer of epithelial cells which lines the heart cavities (atria and ventricles) |
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Term
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Definition
_____ are small pouches on the anterior surface of each atrium that slightly increase the
capacity of each atrium |
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Term
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Definition
| _____ are grooves that separate the chambers and contain blood vessels and fat. |
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Term
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Definition
Receives deoxygenated blood from the body, having three openings to allow this blood to enter:
(1) Superior vena cava
(2) Inferior vena cava
(3) Coronary sinus |
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Term
fossa ovalis
foramen ovale |
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Definition
In the septum separating the right and left atria is an oval depression, the _____ ______ , which
is the remnant of the __________ _____ . |
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Term
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Definition
| Blood passes from the right atrium to the right ventricle through the |
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Term
Right ventricle
pulmonary trunk
pulmonary semilunar valve |
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Definition
a.The _____ventricle forms most of the anterior surface of the heart.
b.The ____ ventricle receives blood from the right atrium and then sends the blood to the lungs via the _____ _____ after it passes through the ______ ___ __________. |
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Term
Left atrium
pulmonary veins
bicuspid valve (aka: mitral valve) |
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Definition
a. The _____ ______ recevies oxygenated blood from the lungs via the ______ ____.
b. Blood passes from the left atrium to the left ventricle through the _____ _______. |
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Term
Left ventricle
aortic semilunar valve
aorta |
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Definition
a. The _____ ________ forms the apex of the heart.
b. Blood passes from the left ventricle through the _____ _______ ____ into the _____. |
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Term
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Definition
During fetal life the ductus arteriosus shunts blood from the pulmonary trunk into the aorta.
At birth, the ductus arteriosus closes and becomes the _________ _______. |
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Term
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Definition
________ _________ are flaps of tissue which closes off the passageway between the atria and
the ventricles (they only permit blood to flow from the atria to the ventricles |
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Term
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Definition
Back flow is prevented by the contraction of papillary muscles thus tightening the
_____ ______ which prevent the valve cusps from everting. |
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Term
The tricuspid valve
The bicuspid valve (aka: mitral valve) |
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Definition
| Atrioventricular valves (aka: cuspate valves or cuspid valves) These include: |
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Term
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Definition
| These valve only permit outflow of blood from the heart |
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Term
| The aortic semilunar valve |
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Definition
--found at junction between the left ventricle and the
origin of the aorta |
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Term
| The pulmonary semilunar valve |
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Definition
--found at the junction between the right ventricle
and the origin of the pulmonary trunk. |
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Term
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Definition
| --wall which separates the two atria |
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Term
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Definition
--opening in the fetal heart which allows blood to pass from the right atrium
to the left atrium in order to bypass the lungs |
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Term
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Definition
| --depression in the interatrial septum which is the remnant of the foramen oval |
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Term
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Definition
| --wall which separates the two ventricles |
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Term
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Definition
| lead from the atria to their respective ventricles |
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Term
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Definition
The ___ ____ of the heart is the pump for the systemic circulation. It pumps oxygenated blood
from the lungs out into the vessels of the body. |
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Term
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Definition
The _____ ____ of the heart is the pump for the pulmonary circulation. It receives deoxygenated
blood from the body and sends it to the lungs for oxygenation. |
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Term
| the coronary (cardiac) circulation |
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Definition
The flow of blood through the many vessels that pierce the myocardium of the heart is called ___ ______ ________ _________.
; it delivers oxygenated blood and nutrients to and removes
carbon dioxide and wastes from the myocardium. |
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