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32 Cards in this Set
- Front
- Back
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Veins
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Carry blood toward heart
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Ateries
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blood vesels that carry blood away from heart
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What are the 2 circuits of the heart?
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1. Systemic
2. Pulmonary |
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Systemic Circuit
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Blood from Left Ventricle supplies the whole body.
Oxygenated blood |
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Pulmonary Circuit
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De oxygenated blood from Right ventricle goes to the lungs & back to Left atrium
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What are some charactersitics of the heart?
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- beats overs 100,000 times per day
-pumps 7600 L blood per day -Mostly behind sternum |
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What is the posteriorsuperior border of the heart called?
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Base
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What is the conical tip of the heart called?
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Apex
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Where is the heart located?
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Inside the mediastinum & wrapped in pericardium
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Pericardium
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Secures the heart to anchor it in place and prevent overfilling
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Fibrous pericardium
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-Outermost layer
-attached to diaphragm -attached to great vessels on top |
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Serous pericardium
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Inside fibrous pericardium
A double layered serous membrane |
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What are the 2 layers of the Serous pericardium?
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1.Parietal layer
2.Visceral layer 3.In between the 2 layers is serous fluid |
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What are the 3 layers of the heart wall?
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1. Epicardium
2. Myocardium 3. Endocardium |
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What do Auricles do?
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Increase atrial volume
make atria able to expand |
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What does the Coronary Sulcus do?
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Separates atria from ventricles
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What does the Interventricular sulcus do?
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Separates Left and Right ventricles
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What are the 2 cicuits?
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1. Pulmonary
2. Systemic |
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What is the pulmonary trunk?
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An artery that delivers blood to lungs (de-oxygenated)
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What do the pulmonary veins do?
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Blood returning from lungs
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Ascending Aorta
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Blood going to system
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Superior & inferior vena cava
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Blood returning from system
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Pectinate muscles
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ridges in wall of atria
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Valves
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prevent backflow of blood
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R AV valve
(atrioventricular) |
Between R atrium & R ventricle.
AKA: Tricuspid valve |
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Papillary muscle
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Pull on chordae tendinae to prevent eversion of valve
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Trabeculae carne
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Muscular ridges of ventricular walls
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Pulmonary semilunar valve
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between pulmonary trunk & right ventricle
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Left AV valve
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Between L atrium & L ventricle.
AKA. Bicuspid or Mitral |
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Aortic Semilunar valve
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Between L ventricle & aorta
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Interatrial septum
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Separates atria
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Interventricular septum
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Separates ventricles
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