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45 Cards in this Set
- Front
- Back
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Right Brachiocephalic Vein
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Innominate vein
Joins with left brachiocephalic vein to form the superior vena cava |
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Left Brachiocephalic Vein
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Innominate vein
Joins with right brachiocephalic vein to form the superior vena cava |
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Superior Vena Cava
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Formed by the junction of the right and left brachiocephalic (innominate) veins
Enters the right atrium |
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Ascending Aorta
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The first part of the systemic circulatory system
Part of aorta that is extending up from the the left ventricle |
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Arch of Aorta
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Aortic arch
Curved part of aorta near the heart Begins where the aorta crosses the pulmonary artery 3 great branches come off the aortic arch to carry blood to the upper extremities Brachiocephalic trunk Left common carotid artery Left subclavian artery |
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Brachiocephalic Trunk
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Innominate artery
The first great branch of the aortic arch |
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Left Common Carotid Artery
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Second great branch of the aortic arch
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Left Subclavian Artery
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The third great branch of the aortic arch
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Descending Aorta
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Part of aorta that extends downward
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Pulmonary Trunk
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Carries blood through its branches from the heart to the lungs to be oxygenated
Artery because carries blood away from heart Blue on model because blood is still deoxygenated |
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Right Pulmonary Artery
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Branch of pulmonary trunk
Blue on model |
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Left Pulmonary Artery
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Branch of pulmonary trunk
Blue on model |
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Ligamentum Arteriosum
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In the fetus it is the ductus arteriosum - this closes at birth
Shunt for blood between the pulmonary artery and aorta |
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Trachea
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Semi-rigid tube connecting the larynx with the lungs
Has cartilage rings Provides an air passage that is resistant to collapse but is flexible |
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Right Bronchus
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Air passage to the right lung
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Left Bronchus
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Air passage to the left lung
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Right Pulmonary Veins
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Return oxygenated blood from the right lung to the left atria
Red on model because it is carrying oxygenated blood even though it is a vein |
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Left Pulmonary Veins
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Return oxygenated blood from the left lung to the left atria
Red on model because it is carrying oxygenated blood even though it is a vein |
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Inferior Vena Cava
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Returns blood to the heart from the systemic circulation system from below the diaphragm
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Right Atrium
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Upper chamber on right
Filling chamber Larger than left atrium, but walls are thinner Receives blood from the inferior and superior vena cava |
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Right Auricle
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Part of the right atrium
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Left auricle
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Part of the left atrium
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Left Atrium
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Upper chamber on left
Filling chamber Smaller than right atrium, but walls are thicker Receives blood from the pulmonary veins and lungs |
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Right Ventricle
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Lower chamber on right
Pumping chamber Pumps blood to the pulmonary arteries and lungs |
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Left Ventricle
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Lower chamber on the left
Pumping chamber Pumps blood to the systemc circulation through the aorta Thickest wall |
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Apex of the Heart
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Inferior point
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Orifice of the right coronary artery
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Opening to the right coronary artery
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Orifice of the left coronary artery
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Opening to the left coronary artery
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Right Coroanry Artery
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Supplies blood to the myocardium of the right half of the heart through its branches
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Posterior Descending Branch of the Right Coronary Artery
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Marginal Branch of the Right Coronary Artery
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Left Coronary Artery
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Supplies blood to the left side of the heart through its branches
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Anterior Descending Branch of the Left Coronary Artery
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Circumflex Branch of the Left Coronary Artery
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Branches of the Right Coronary Artery
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Branches of the LeftCoronary Artery
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Internal Structures of the Heart
Orifices |
Orifice of the superior vena cava
Orifice of the inferior vena cava Orifice of the coronary sinus Orifice of the right pulmonary veins Orifice of the left pulmonary veins |
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Internal Structures of the Heart
Valves |
Tricuspid valve
Bicuspid valve (mitral valve) Semilunar valve of the pulmonary artery Semilunar valve of the aorta Chordae tendinae - cords that connect the valve leaflets to the papillary muscles Papillary muscles - attach valves by chordae tendinae to the endocardium |
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Internal Structures of the Heart
Wall |
Endocardium - interior lining of the heart
Myocardium - muscle of the heart Levt ventricle wall is 3 times thicker than right ventricle Right ventricle wall is relatively thin |
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Internal Structures
Miscellaneous |
Fossa ovalis - a depression left as a remnant from the foramen ovale in the fetal circulation which closes at birth
Trabeculae carnae Moderator band - a larger muscle trabeculae which reinforces the right ventricle wall Conus arteriosus (infundibulum) - smooth walled conical part of the right ventricle wall |
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Conductive System
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Cardiac muscle is capable of independent action, but is coordinated by a special conducting system
Contractions of the muscle begin at the apex and proceed upwards over the ventricles It stabilizes the contractions and adjusts them to the requirements of the body Sinoatrial node Atrioventricular node Atrioventriuclar bundle Right atrioventricular bundle Left atrioventricular bundle Terminal Purkinje fibers |
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Conductive System
Sinoatrial Node |
The "pacemaker" of the heart
It initiates and sends each atrial contraction wave to the atrioventricular node |
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Conductive System
Atrioventricular Node |
Located under the endocardium of the right atrium
Receives contraction waves from the sinoatrial node Transmits the contraction waves to the ventricles ofer the atrioventricular bundle |
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Conductive System
Atrioventricular Bundle |
Divides into 2 branches- right and left branch of the atrioventricular bundle
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Purkinje Fibers
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Conduction fibers
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