Body Circulation And Diseases Of The Human Circulatory System PDF

Lesson 1.5 | Body Circulation Body How does the blood circulate throughout Circulation the body? Lesson 1.5 | Body Circulation BLOOD CIRCULATION The heart pumps blood throughout the body in a...

Lesson 1.5 | Body Circulation Body How does the blood circulate throughout Circulation the body? Lesson 1.5 | Body Circulation BLOOD CIRCULATION The heart pumps blood throughout the body in a continuous circulation. I t is divided into TWO parts; a. Pulmonary circuit b. Systemic circuit Lesson 1.5 | Body Circulation PULMONARY CIRCUIT Transports deoxygenated (oxygen- poor) blood from the heart to the lungs. STEPS IN PULMONARY CIRCUIT 1. Right ventricle contracts 2. Blood is push through the pulmonary arteries to lungs 3. Gas exchange happens in the capillaries 4. During inhalation, blood become rich w / oxygen. 5. Blood flows to the pulmonary veins and left atrium 6. Left atrium contracts and pushes Lesson 1.5 | Body Circulation SYSTEMIC CIRCUIT Carries oxygenated blood from the heart to the organs and tissues. STEPS IN SYSTEMIC CIRCUIT 7. Left ventricle contracts, blood is forced to the aorta 8. Aorta carries the blood away from the heart 9. I t flows to all the body’s tissue and organs, returns to the body through the veins 10.Brings back deoxygenated blood to the heart through the right atrium. Right atrium contracts blood is Lesson 1.5 | Body Circulation In summary, blood flow may be described in two ways; four easy steps or 10-step process FOUR-STEP PROCESS EXPLANATION HEART UPPER Blood flows from & LUNG the heart to S LOWER lungs, back to BODY the heart, out to HEART the body, and then back to the heart. Lesson 1.5 | Body Circulation In summary, blood flow may be described in two ways; four easy steps or 10-step process TEN-STEP PROCESS RRiigg Pulmonar Capillarie Pulmonar Left hhtt y s in y veins atrium Ventricle arteries lungs Head, Righ Superior chest, Left and arms, aort t ventricl interior abdominal a e atriu vena cava region, m and legs Lesson 1.6 | Circulatory Diseases and Disorders DISORDERS OF THE BLOOD VESSELS  Lesson 1.6 | Circulatory Diseases and Disorders ATHEROSCLEROSIS disease of the arteries caused by a cholesterol buildup “plaque” narrows the diameter of the arteries Fat deposits Treatment: Angioplasty and bypass graft surgery Prevention: have diet Lesson 1.6 | Circulatory Diseases and Disorders Lesson 1.6 | Circulatory Diseases and Disorders BYPASS SURGERY  Lesson 1.6 | Circulatory Diseases and Disorders STROKE hardening of the arteries in the brain or neck vessels Thrombus – fixed blood clot within the blood vessels Embolus – wandering clot (stop blood flow) can also occur due to hemorrhage - CEREBRAL HEMORRHAGE Treatment – intensive rehabilitation  Lesson 1.6 | Circulatory Diseases and Disorders https://www.cdc.gov/stroke/images/Stroke-Signs-Men-Women- medium.jpg?_=77306  Lesson 1.6 | Circulatory Diseases and Disorders https://www.nia.nih.gov/sites/default/files/2023-02/stroke- fast-nia.jpg Lesson 1.6 | Circulatory Diseases and Disorders DISEASES OF THE HEART Lesson 1.6 | Circulatory Diseases and Disorders CORONARY HEART DISEASE walls of the arteries may harden & blood volume may be reduced. agina pectoris – chest pain & discomfort Infarct – damaged cardiac tissue Myocardial infarction – “heart attack” Prevention – moderate exercise, rest, good diet, smoking Lesson 1.6 | Circulatory Diseases and Disorders HYPERTENSIVE HEART DISEASE elevated blood pressure, narrowing of arterioles resist blood flow heart must work harder to force blood through heart muscle thickens and enlarge failure of the heart, onset of stroke | atherosclerosis and heart attack Treatment – antihypertensive Lesson 1.6 | Circulatory Diseases and Disorders HYPERTENSIVE HEART DISEASE  Lesson 1.6 | Circulatory Diseases and Disorders RHEUMATIC HEART DISEASE usually occurs in children begins with untreated bacterial infection Streptococcus pyogenes – causes rheumatic fever inflammation of the endocarditis. Lesson 1.6 | Circulatory Diseases and Disorders DISORDERS OF THE BLOOD  Lesson 1.6 | Circulatory Diseases and Disorders HEMOPHILI uncontrollable bleeding A Hemophiliacs or bleeders genetic condition transmitted by the mother male offspring is mostly affected caused by the lack of one plasma protein - Factor V I I I deficiency Lesson 1.6 | Circulatory Diseases and Disorders https://pbs.twimg.com/media/ FfmmMfpXoAMNqAj.jpg  Lesson 1.6 | Circulatory Diseases and Disorders ANEMI Ablood cells persistent low count of red Normal RBC Count a. MEN – 4.7 to 6.1 million b. WOMEN – 4.2 to 5.4 million decreased amount of hemoglobin in RBC es, disea nutritional deficienci ses or injuries, destruction, Lesson 1.6 | Circulatory Diseases and Disorders https:/ /www.pathkindlabs.com/sites/default/files/styles/large/public/1-  Lesson 1.6 | Circulatory Diseases and Disorders LEUKEMI Anumber of WBCs (white abnormal increase in the blood cells) “dangerous” blood disorder Children – marrow produces abnormally large WBC Treatment includes radiation and drugs, wipe out malignant cells. Lesson 1.6 | Circulatory Diseases and Disorders https://images.everydayhealth.com/images/what-are-common-symptoms-of-leukemia- 1440x810.jpg