Intro to cvs
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The cardiovascular system transports nutrients, removes waste, and facilitates gas exchange through the blood and heart. It consists of the heart, arteries, veins, and capillaries. The heart is a four-chambered muscular pump located in the chest that circulates blood through two circuits: systemic circulation between the heart and body and pulmonary circulation between the heart and lungs. Arteries carry blood away from the heart while veins return blood to the heart. Capillaries connect arterioles and venules to exchange materials. The cardiovascular system maintains circulation through these components and circuits.
Intro to cvs
- 1. INTRODUCTIONTO CARDIOVASCULAR SYSTEM By: Dr. Akshita (PT) M.P.T (Cardiopulmonary), B.P.T (AJIPT, Delhi University), D.C.P.T In charge, Department of Physiotherapy, IPHI, New Delhi Former PT Yashoda Super Specialty Hospital & DCCW Former Intern Sir Ganga Ram Hospital Certified BLS & ACLS, AHA
- 2. INTRODUCTION • Cardiovascular system is the transport system of the body, through which the nutrients are conveyed to places where these are utilized, and the metabolites (waste products) are conveyed to appropriate places from where these are expelled.
- 3. • The conveying medium is a liquid tissue, the blood, which flows in tubular channels called blood vessels. • The circulation is maintained by the central pumping organ called the heart.
- 4. FUNCTION OF CARDIOVASCULAR SYSTEM Transport nutrients, hormones Remove waste products Gaseous exchange Immunity Blood vessels transport blood Carries oxygen and carbon dioxide Also carries nutrients and wastes Heart pumps blood through blood vessels
- 5. COMPONENTS Heart: • It is a four-chambered muscular organ which pumps blood to various parts of the body. • Each half of the heart has a receiving chamber called atrium, and a pumping chamber called ventricle. • Location: • Superior surface of diaphragm • Left of the midline • Anterior to the vertebral column, posterior to the sternum
- 6. FUNCTIONS OF THE HEART: • Generating blood pressure • Routing blood Heart separates pulmonary and systemic circulations • Ensuring one-way blood flow Heart valves ensure one-way flow • Regulating blood supply Changes in contraction rate and force match blood delivery to changing metabolic needs
- 7. Arteries: • These are distributing channels which carry blood away from the heart. • They branch like trees on their way to different parts of the body. • The large arteries are rich in elastic tissue.
- 8. Veins: • These are draining channels which carry blood from different parts of the body back to the heart.
- 9. Capillaries: • These are networks of microscopic vessels which connect arterioles with the venules.
- 11. COMPARISON OF ARTERIES AND VEINS
- 12. TYPES OF CIRCULATION OF BLOOD •Coronary circulation – the circulation of blood within the heart. • Systemic Circulation •Pulmonary circulation •Fetal Circulation •Portal circulation
- 13. TYPES OF CIRCULATION OF BLOOD Systemic circulation: The flow of blood between the heart and the cells of the body. • The blood flows from the left ventricle, through various parts of the body, to the right atrium, i.e. from the left to the right side of the heart.
- 14. TYPES OF CIRCULATION OF BLOOD Pulmonary circulation: • The flow of blood between the heart and lungs. • The blood flows from the right ventricle, through the lungs, to the left atrium, i.e. from the right to the left side of the heart.
- 15. TYPES OF CIRCULATION OF BLOOD Portal circulation – • The flow of blood between tow set of capillaries before draining in systemic veins.
- 16. TYPES OF CIRCULATION OF BLOOD • Fetal Circulation
- 17. UMBILICAL ARTERY DESCENDING AORTA (Through Ductus Arteriosus) PULMONARY TRUNK RIGHT VENTRICLE ASCENDING AORTA UMBILICAL VEIN PORTAL VEIN (Through Ductus Venosus) INFERIOR VENA CAVA RIFHT ATRIUM (Through Foramen Ovale) LEFT ATRIUM PLACENTA
- 18. REFERENCES 1- General Anatomy by Vishram Singh 2- Clinical Anatomy by R. Snell 3-Gray’s Anatomy
- 19. THANK YOU!