Complete Blood Supply to Heart | Nursing Notes ❤️ Complete Blood Supply to the Heart 🩸 Arterial Supply The heart receives oxygenated blood from the coronary arteries , which originate from the ascending aorta just above the aortic valve. 1️⃣ Right Coronary Artery (RCA) 🌟 Origin: Right aortic sinus Supplies: Right atrium ❤️ Right ventricle 💓 Inferior left ventricle SA node & AV node ⚡ Branches: Marginal branches 🟢, Posterior descending artery 📌 2️⃣ Left Coronary Artery (LCA) 🌟 Origin: Left aortic sinus Branches: Left Anterior Descending (LAD) 🌞 – anterior LV & IVS Left Circumflex (LCX) 🌙 – lateral & posterior LV, left atrium 🩸 Venous Drainage Deoxygenated blood is drained by coronary veins into the coronary sinus and then into the right atrium. Major veins: Gr...
Oral Cancer| Bsc Nursing 3rd year| Pathophysiology| surgical management| Nursing Management| medical Management|
Oral Cancer: A Comprehensive Guide Oral cancer, also known as mouth cancer, refers to a group of cancers that develop in the tissues of the mouth and throat. It can affect the lips, tongue, gums, inner cheeks, roof of the mouth (hard palate), floor of the mouth under the tongue, tonsils, and salivary glands. Early detection and treatment are crucial for improving the prognosis of oral cancer. Causes: The primary risk factor for oral cancer is tobacco use, including cigarettes, cigars, chewing tobacco, and smokeless tobacco. Other risk factors include: Heavy alcohol consumption: Alcohol can irritate the mouth tissues and increase the risk of cancer when combined with tobacco use. Human Papillomavirus (HPV) infection: Certain strains of HPV, particularly HPV 16 and 18, are linked to an increased risk of oropharyngeal cancer (cancer of the tonsils and back of the throat). Sun exposure: Excessive sun exposure can increase the risk of lip cancer. A weakened immune system: Indivi...