Heart Anatomy Lecture Notes PDF
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Uploaded by EngagingThorium
The University of Lahore
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Summary
These notes provide a detailed explanation of the heart's structure and function, including its chambers, valves, and blood vessels. The document outlines the flow of blood through the heart and lungs, highlighting the role of different components. It aims to create a clear understanding of how the body circulates blood.
Full Transcript
Chaliye is detailed heart diagram ko step-by-step explain karte hain, aur har structure ka function bhi samajhte hain: 1. Heart Chambers: a. Right Atrium (RA): Location: Upper right part of the heart. Function: Deoxygenated blood (oxygen-less blood) body se receive karta hai via Superior V...
Chaliye is detailed heart diagram ko step-by-step explain karte hain, aur har structure ka function bhi samajhte hain: 1. Heart Chambers: a. Right Atrium (RA): Location: Upper right part of the heart. Function: Deoxygenated blood (oxygen-less blood) body se receive karta hai via Superior Vena Cava (SVC) aur Inferior Vena Cava (IVC). b. Right Ventricle (RV): Location: Lower right part of the heart. Function: Deoxygenated blood ko Pulmonary Artery ke through lungs me pump karta hai for oxygenation. © Left Atrium (LA): Location: Upper left part of the heart. Function: Oxygenated blood (oxygen-rich blood) lungs se receive karta hai via Pulmonary Veins. c. Left Ventricle (LV): Location: Lower left part of the heart. Function: Oxygenated blood ko Aorta ke through pure body me pump karta hai. 2. Heart Valves: d. Tricuspid Valve: Location: Right Atrium aur Right Ventricle ke beech. Function: Blood ko ek direction me flow karne deta hai (Right Atrium → Right Ventricle). Blood ko wapas atrium me jaane se rokti hai. e. Pulmonary Valve: Location: Right Ventricle aur Pulmonary Artery ke beech. Function: Blood ko lungs ki taraf flow karne me help karta hai aur wapas ventricle me nahi jaane deta. © Mitral Valve (Bicuspid Valve): Location: Left Atrium aur Left Ventricle ke beech. Function: Blood ko Left Atrium se Left Ventricle me aage badhne deta hai aur reverse flow ko rokti hai. f. Aortic Valve: Location: Left Ventricle aur Aorta ke beech. Function: Oxygenated blood ko Aorta ke through body me flow karne deta hai aur reverse flow ko rokti hai. 3. Blood Vessels: g. Superior Vena Cava (SVC) aur Inferior Vena Cava (IVC): Function: Body ke upper aur lower parts se deoxygenated blood Right Atrium tak lekar aati hain. h. Pulmonary Arteries: Function: Right Ventricle se deoxygenated blood lungs tak lekar jaati hain, jahan oxygenation hota hai. © Pulmonary Veins: Function: Lungs se oxygenated blood Left Atrium me lekar aati hain. i. Aorta: Function: Left Ventricle se oxygenated blood ko pure body me distribute karti hai. 4. Septum: j. Atrial Septum: Function: Right aur Left Atrium ke beech wall ki tarah kaam karta hai, jisse oxygenated aur deoxygenated blood mix nahi hota. k. Ventricular Septum: Function: Right aur Left Ventricles ke beech wall ki tarah kaam karta hai, jisse dono taraf ka blood separate rehta hai. 5. Blood Flow Cycle: 1. Deoxygenated blood enters Right Atrium via SVC aur IVC. 2. Blood Tricuspid Valve ke through Right Ventricle me flow karta hai. 3. Pulmonary Valve ke through Pulmonary Artery lungs tak blood le jaati hai for oxygenation. 4. Oxygenated blood lungs se Pulmonary Veins ke through Left Atrium me aata hai. 5. Blood Mitral Valve ke through Left Ventricle me flow karta hai. 6. Aortic Valve ke through Aorta pure body me oxygenated blood supply karti hai. Summary: Heart ka primary function blood ko circulate karna hai: Deoxygenated blood ko lungs tak le jana. Lungs se oxygenated blood ko pure body tak distribute karna. Valves aur Septa ensure karte hain ki blood ka flow ek direction me ho aur mix na ho. Agar aur detail chahiye ya kisi specific part ko samajhna hai, toh batayiye!
