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| What is the major function of the cardiovascular system? |
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Definition
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| The cardiovascular system carries... |
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Definition
(1) Oxygen
(2) Digested foods
(3) Cell Waste
(4) Electrolytes
(5)And Others |
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Definition
| The medial cavity of the thorax. Is where the heart is located. |
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Definition
Point of the heart that points to the left and rests on the diaphragm #21
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Definition
Where the great vessels emerge, points toward the right shoulder. Top of heart
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Definition
| A double-walled serous sac where the heart is enclosed |
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Definition
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Definition
| Thin layer of very smooth tissue lining each chamber of the heart |
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Term
| Interventricular septum (interatrial) |
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Definition
The septum that divides the heart longitudinally
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Term
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Definition
One of the upper chambers of the heart; receives blood from either the systemic or pulmonary circulation
(R) Recieves relatively oxygen-poor blood from the body via the superior and inferior venae cavae
(L) Four pulmonary veins deliver oxygen rich blood from the lungs |
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Term
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Definition
A cavity, such as the large, fluid-filled spaces within the heart
(R) Pumps blood into the pulmonary trunk which sends blood to the lungs to be oxygenated
(L) Discharges blood into the Aorta from which all systemic arteries of the body diverge to supply the body tissue. |
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Term
| Atrioventricular (AV) Valves |
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Definition
Two valves that seperate the atrial chambers from the ventricles. Prevents back flow into the atria when the ventricles are contracting
(R) Tricuspid
(L) Mitral/ Bicuspid valve
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Term
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Definition
| Tiny white collagenic cords canchor the cusps to the ventricular wall. |
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Definition
Valves located between each ventricle and the large artery that carries blood away from it opens during Systole
1. Pulmonary
2. Aortic |
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Definition
| Blood flow from the right ventricle to the lungs and returning to the left atrium |
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Term
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Definition
| carries oxygen-rich blood from the left heart through the body tissues and back to the right heart. Supplies the functional blood supply to all body tissues. |
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Term
| What blood supply nourishes the myocardium? |
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Definition
| The right and left coronary arteries |
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Term
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Definition
Branch from the base of the aorta and encircle the heart in the coronary sulcus (atrioventricular groove) at the junction or the atria and ventricles (R) Supplies the posterior surface of the ventricles and the lateral aspect of the right side of the heart throught the posterior interventricular and marginal artery branches.
(L) Supplies the anterior ventricular walls and the laterodorsal part of the left side of the heart via the anterior interventricular and and the circumflex artery.
(Arteries are filled when the heart is relaxed.) |
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Term
| Coronary Sulcus (AV groove) |
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Definition
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Term
| How is the Myocardium drained? |
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Definition
| The Myocardium is drained by several cardiac veins which empty into the coronary sinus which empties into the right atrium. |
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Term
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Definition
Specialized muscle that makes up the heart. Cardiac cells are arranged in figure-8 shaped bundles allowing the internal chambers to become smaller when the heart contracts, forcing blood flow upward into the arteries.
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Definition
Earlike appendage of each atrium of the heart.
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Term
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Definition
1. Right Atrium
2. Left Atrium
3. Right Ventricle
4. Left Ventricle
5. Superior Vena Cava
6. Inferior Vena Cava
7. Aorta
8. Rachiocephalic Artery
9. Left Common Carotid Artery
10. Left Subclavian Artery
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Term
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Definition
11. Pulmonary Trunk
12. Right Pulmonary Artery
13. Left Pulmonary Artery
14. Ligamentum Arteriosum
15. Right Pulmonary Veins
16. Left Pulmonary Veins
17. Coronary Sulcus (R AV Groove)
18. Right Coronary Artery
19. Coronary Sulcus (L AV Groove)
20. Circumflex Artery
21. Apex |
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Term
| What is the function of fluid that fills the pericardial sac? |
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Definition
| It allows the heart to pump in a relatively frictionless environment. |
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Term
| Explain the blood flow through the human body. |
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Definition
R Atrium through the tricuspid valve to the R Ventricle through the Pulmonary Semilunar Valve to the Pulmonary Trunk to the L Pulmonary Artery to the capillary beds of the lungs to the Pulmonary Veins to the L Atrium of the heart through the Mitral valve to the L Ventricle through the Aortic Semilunar Valve to the Aorta to the Systemic Arteries to the Capillary beds of the tissues of the systemic veins to the Superior and Inferior Vena Cava entering the R Atrium of the heart.
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Term
| The Ligamentum Arteriosum and the Fossa Ovalis are remnants of which structres in a fetal heart? |
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Definition
Ligamentum Arteriosum: Ductus Arteriosus between the pulmonary trunk and aorta
Fossa Ovalis: Forman Ovale between the R & L atria |
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