Cardiovascular System 5.0 / 5 based on 1 rating ? Health & Social CareCardiovascular system UniversityNone Created by: Jenp15Created on: 27-01-23 12:26 69108432175 Across 1. Has 2 layers: *Parietal Layer - lines internal surface of fibrous pericardium *Visceral Layer - Lies deep to parietal Layer *Pericardial Cavity between these two layers, contains fluid. (6, 11) 5. Refers to cells that line the interior surface of blood vessels and lymphatic vessels, forming an interface between circulating blood or lymph in the lumen and the rest of the vessels wall. It is a thin layer of simple, or single-layered, squamous cells c (11) 7. Layers of the heart wall: The wall of the heart consists of three layers 1. The epicardium (external layer) 2. The Myocardium (middle layer) 3. The Endocardium (inner layer) The visceral layer of the pericardium sits on the outer layer of the heart wall, (5, 4) 8. *Blood is a highly specialised, alkaline fluid that carries nutrients to body cells, and waste products away. *4-5 Litres in an adult *It is made up of: Plasma (~55%), Red Blood Cells (~45%), White Blood Cells & Platelets (~0.7%) (5) 10. 1. Arteries: Carry blood away from the heart -They have thick muscular walls to withstand and maintain the pressures generated by the heart. 2. Veins: Carry blood back to the heart -Veins do not need muscular walls, but instead have valves to prevent th (5, 7) Down 2. it is an important region of the body located between the lungs. Structures that lie in this region include the heart, the oesophagus, the trachea, and large blood vessels including the area. The mediastinum is also home to lymph nodes. (11) 3. *Plasma makes up about half of the content of blood *Plasma contains proteins that help blood to clot *It also transports substances through the blood (Include hormones) *Blood plasma also contains glucose and other dissolved nutrients and takes them to t (6) 4. *An outer covering *Double walled sac *Superficial layer = Fibrous Pericardium *Deep layer = Serous Pericardium (11) 6. *Blood in the circulatory system is always under pressure, which depends on: -The amount of blood in the system -The strength and rate of the hearts contractions -The elasticity of the arteries *Doctors measure two phases of the blood pressure: -Systo (5, 8) 9. *Thick walled and strong *Recieves blood from atria, as it passes through the Tricuspid (Right) & Bicuspid (Left) (Mitral) Valve. *Pushes blood to: -The pulmonary Circulation (Lungs- Right side) -The Systemic Circulation (Body - Left side) *The blood pas (10)
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