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Heart anatomy 2.0
| Question | Answer |
|---|---|
| Where is the human heart located? | Thoracic cavity. Medially between the lungs. The space is know as the mediastinum. |
| Within the mediastinum, the heart is separated from other structures by a tough membrane called? | Percardium, pericardial sac. |
| The pericardium sits in the space called the? | Percardial cavity. |
| Slight deviation of the apex to the left is reflected in a depression in the medial surface of the superior lobe of the left lung called the? | Cardiac notch. |
| What is hypertrophic cardiomyopathy? | Abnormal enlarged heart muscle. |
| Human heart consists of 4 chambers which are called? | L\R Atrium L\R ventricle |
| Each of the upper L\R atria chambers act as what? (Singular=Atrium) | Act as receiving chambers. Contracts to push blood into the lower chambers, the L\R ventricle. |
| What do the L\R ventricles serve as? | Primary pumping chambers. |
| Where do the ventricles propell blood? | The lungs and to the rest of the body. |
| The pulmonary circuit does what? | Transports blood to and from the lungs. It picks up oxygen and delivers carbon dioxide for exhalation. |
| What does the systematic circuit do? | Transports oxygenated blood to basically all tissues of the body. Returns relatively deoxygenated blood and carbon dioxide to the heart and is sent back through the pulmonary circulation. |
| The right ventricle pumps deoxygenated blood into the what? | Pulmonary trunk. |
| Where do the pulmonary trunk lead to? | The lungs. |
| Where does the deoxygenated blood lead towards after the pulmonary trunk? | The L&R pulmonary arteries. |
| Vessels in turn branch many times before reaching the what? | Pulmonary capillaries. |
| Pulmonary capillaries exchange what gasses. | Carbon dioxide exits the blood and oxygen enters. |
| What arteries in the post-natal body carry what? | Relatively deoxygenated blood. |
| Highly oxygenated blood returning from the pulmonary capillaries in the lungs pass through a series of vessels that form what? | The pulmonary vein. Only post-natal veins carry highly oxygenated blood. |
| Name the two major systemic veins which are? | superior vena cava and inferior vena cava. |
| Where do the superior vena cava and inferior vena cava return blood? | Right atrium which in turn pumps blood into the right ventricle. |
| The pericardium consists of 2 distinct layers which are? | Sturdy outer fibrous percardium. The inner serous pericardium. |
| What is the epicardium fused to? | The heart and part of the heart wall. |
| The pericardial cavity is filled with what? | Lubricating fluid. Lies between the epicardium and the pericardium. |
| What macroscopic layer consists of simple squamous epithelium? | Mesothelium. |
Created by:
lou n j
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