Term
| What is the location of the heart? superior to what?left of the what? Anterior and posterior to what? |
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Definition
SUPERIOR surface of the diaphragm
LEFT of the midling
ANTERIOR to the vertebral column
POSTERIOR to the sternum |
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Term
| What organs are included in the cardiovascular system? |
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Definition
| the heart, the arteries, veins, and capillaries |
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Term
| The pulmonary circuit and the systemic circuit are parts of what system/ |
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Definition
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Term
| The PULMONARY CIRCUIT controls what and communicates with what? |
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Definition
| It controls the right side of the heart, it communicates with the lungs |
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Term
| The SYSTEMIC CIRCUIT controls what and communicates with what? |
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Definition
| controls the left side of teh heart, and it comunicates with the bady tissues |
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Term
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Definition
| a double walled sac around the heart |
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Term
| The pericardium is composed of how many layers? |
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Definition
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Term
| What is the superficial pericardium layer called? |
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Definition
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Term
| The ______ layer or epicardium lines the surface of the heart.....or the heart surface. |
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Definition
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Term
| The ______ layer lines the internal surface of the fibrous pericardium....or the _______ ________. |
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Definition
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Term
| The parietal layer and the visceral layer are seperated by the fluid filled _______ _________ |
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Definition
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Term
| Preventing overfilling of teh heart with blood....this is the job of what layer of the heart? |
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Definition
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Term
| What protects and anchors the heart in... |
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Definition
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Term
| What allows for the heart to work in a relatively friction free environment? |
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Definition
| The pericardium (layer of the heart) |
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Term
| What are the THREE pericardial layers that make up the HEART WALL? |
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Definition
1. Epicardium
2. Myocardium
3. Endocardium |
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Term
| What is another name for the EPICARDIUM? |
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Definition
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Term
| What's the visceral layer of the serous pericardium? |
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Definition
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Term
| __________is a thick, cardiac muscle layer forming the bulk of the heart. |
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Definition
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Term
| ___________is the endothelial layer of teh inner myocardial surface. |
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Definition
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Term
| The fibrous skeleton of the heart provides support and attachment for the ________ muscle. |
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Definition
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Term
| The fibrous skeleton of the heart consists of what? |
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Definition
| crisscrossing, interlacing layer of collagen and elastic fibers |
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Term
| Explain the Pulmonary circuit: Superior and inferior vena cava -> |
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Definition
| right chambers of the heart -> pulmonary trunk (divides into R and L pulmonary arteries) -> lungs -> R and L pulmonary veins -> left chambers |
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Term
| Explain the Systemic Circuit: Left chambers ->.... |
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Definition
| aorta (3branches) ->body (arteries to capillaries to veins) -> superior and inferior vena cava |
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Term
| What is the functional blood supply to the heart muscle itself? |
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Definition
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Term
| _________ ________ ensure blood delivery to the heart even if major vessels are occluded. |
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Definition
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Term
| Coronary vessels do what? |
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Definition
| they nourish cardiac muscles |
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Term
| The LEFT CORONARY divides into what? |
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Definition
| The ANTERIOR IV ARTERY and the CIRCUMFLEX ARTERY |
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Term
| The RIGHT CORONARY divides into what? |
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Definition
| The POSTERIOR IV ARTERY and the MARGINAL ARTERY |
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Term
| ANTERIOR IV ARTERY supplies blood to.... |
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Definition
| IV septum and anterior wall of ventricle |
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Term
| CIRCUMFLEX ARTERY supplies blood to the.... |
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Definition
| left side of coronary sulcus, and the L atrium and posterior wall of L ventricle |
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Term
| POSTERIOR IV ARTERY supplies blood to the..... |
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Definition
| posterior ventricle walls |
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Term
| MARGINAL ARTERY supplies blood to the.... |
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Definition
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Term
| Coronary veins return what? |
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Definition
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Term
| Coronary veins return what? |
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Definition
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Term
| Coronary veins return what? |
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Definition
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Term
| Name all the Coronary Vessels? |
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Definition
1. Coronary Veins
2. Great Cardiac
3. Anterior Cardiac
4. Small Cardiac
5. Middle Cardiac |
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Term
| All of the Coronary Vessels drain into the what? |
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Definition
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Term
| The Coronary sinus drains into the what? |
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Definition
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Term
| Atria (atrium) are the ______ chambers of the heart |
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Definition
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Term
| Each atrium has a protruding _______. |
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Definition
| Auricle (increases volume) |
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Term
| __________muscles (comb) mark atrial walls |
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Definition
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Term
| Blood enters the right atrium from the _______ and __________ ______ ______ and the ________ __________. |
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Definition
| Superior and inferior vena cava, coronary sinus |
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Term
| Blood enter the left atrium from the _____ _______` |
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Definition
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Term
| What are the discharging chambers of the heart |
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Definition
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Term
| Papillary muscles are what? Whats another name for them? |
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Definition
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Term
| "crossbars of flesh"- What is this talking about? |
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Definition
| trabeculae carnae muscles |
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Term
| Papillary and trabeculae carnea muscles mark __________ _________. |
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Definition
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Term
| The right ventricle pumps blood in the _______ ________ |
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Definition
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Term
| The left ventricle pumps blood in the _____. |
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Definition
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Term
| What insures unidirectional blood flow through the heart? |
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Definition
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Term
| What prevents backflow into the atria when ventricles contract? |
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Definition
| Atrioventricular valves (AV valves) |
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Term
| The atrioventricular valves (AV valves) lie between the ______ and the _______. |
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Definition
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Term
| The right AV valve has how many cusps? |
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Definition
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Term
| The Left AV valve has how many cusps? |
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Definition
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Term
| What does the acronym L.A.M.B stand for? |
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Definition
| Left AV- Mitral, Bicuspid (Valves) |
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Term
| What is the name of the 3 cusps in the Right AV valve? |
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Definition
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Term
| What anchors the AV valves to papillary muscles? |
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Definition
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Term
| What valve lies between the Left Ventricle and the Aorta |
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Definition
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Term
| What valve lies between the Right Ventricle and Pulmonary Trunk? |
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Definition
| Pulmonary Semilunar Valve |
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Term
| Semilunar valves prevent backflow of blood into the ________. |
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Definition
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Term
| Explain the pathway of blood through the heart and lungs....start with the Right Atrium |
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Definition
| Right Atrium-> tricuspid valve-> right ventricle-> pulmonary semilunar valve-> pulmonary arteries-> lungs-> pulmonary veins-> left atrium-> bicuspid valve-> left ventricle-> aortic semilunar valve-> aorta-> systemic circulation |
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Term
| What is the AV valve mechanic for when the ventricles are relaxed? |
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Definition
-the pressure drops
-semilunar valves close*
-AV valves open*
-blood flows form atria to ventricles |
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Term
| What is the AV valve mechanic for when the Ventricles are contracted? |
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Definition
-AV valves close*
-pressure rises
-semilunar valves open*
-blood flows into great vessels |
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Term
| One of the AV valve mechanics is the ventricles being contracted. When this happens the AV valves close...what's significant about them closing? |
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Definition
| it makes the papillary muscles contract and pull on chordae tendineae to prevent prolapse |
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Term
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Definition
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