Term
| Of the three layers of the heart wall, the layer that contains the cardiac muscle is the…? |
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Definition
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Term
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Definition
| Inflamed outer layer of the heart. |
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Term
| A penetrating stab wound to the heart wall that causes blood to leak into the pericardial cavity, leading to an improper heart beat is what condition? |
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Definition
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Term
| What condition of the heart is caused by bacterial infection, and can damage the valves? |
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Definition
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Term
| What structure closes to prevent blood from going from the pulmonary artery back into the right ventricle? |
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Definition
| Pulmonary Semilunar Valves |
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Term
| Describe the blood flow into and out of the heart, listing all the structures. |
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Definition
| Deoxy blood à sup/inf vena cava à R atrium à tricuspid valve à R ventricle à pulmonary semilunar valve à pulmonary artery à lungs à pulmonary veins à Left atrium à mitral (bicuspid) valve à Left ventricle à aortic semilunar valve à aorta à rest of body. |
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Term
| What chamber is responsible for generating the largest pressure upon contraction |
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Definition
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Term
| Stenosis (blockage) of the mitral valve may cause blood to back up into where? |
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Definition
| The pulmonary circulation |
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Term
| What structure is located between the ventricles and the great arteries? |
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Definition
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Term
| If the beating heart makes a “lub-dub” sound, the “dub” sound is caused by what? |
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Definition
| Vibrations that result from blood hitting the semilunar valves after they slam shut. |
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Term
| When the Left & Right Ventricles contract at the same time, what is that called? What are the atria doing during this time? |
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Definition
• SYSTOLE
-Ventricles contract
-Atria relax |
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Term
| When ventricles are relaxed, it’s called? What are the atria doing during this time? |
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Definition
• DIASTOLE:
-Ventricles relax
-Atria contract |
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Term
| What is the most common heart valve disorder? |
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Definition
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Term
| Describe the path that an action potential takes during depolarization of the heart. |
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Definition
| SA node, AV node, bundle of His, bundle branches, Purkinje fibers. |
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Term
| What does the Bundle of His do to the electrical signal pathway? |
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Definition
| Slows it down to give the atria a chance to finish contracting. |
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Term
| What is the name of the condition when there is a problem with the SA or AV node which causes an irregular heartbeat? |
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Definition
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Term
| What is the name of the condition when there is a problem with the SA or AV node which causes an irregular heartbeat? |
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Definition
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Term
| What condition means a heartbeat that is too fast? |
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Definition
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Term
| What condition means a heartbeat that is too slow? |
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Definition
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Term
| What condition is when the ventricles are unable to pump blood efficiently due to rapid, random contraction of cardiac muscle fibers? |
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Definition
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Term
| What is the term for PAIN caused by deficient blood delivery to the heart wall? |
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Definition
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Term
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Definition
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Term
| What is the proper term for a heart attack? |
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Definition
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Term
| What is a procedure to inject dye into the arteries and x-ray to see if there is narrowing (sclerosis) of a vessel? |
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Definition
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Term
| If an artery is too narrow, what procedure can be performed to open it up? |
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Definition
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Term
| What is a sac-like out pouching of an artery? |
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Definition
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