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CIRCULATORY I SYSTEM Sharayu Kanoje..

What is Circulatory System ? It is a system which helps in the transport and circulation of carbon dioxide, oxygen and nutrients to all the parts of the body..

why should learn CIRCULATORY 2 SYSTEM ? • Transports Nulrienls and gases 10 every Cell of lhe body and lakes lhe waste away from lhe same cell hence keeping lhem healthy. • Prolecls body from Infection and blood loss. Ilelps maintain fluid balance in lhe body..

ATRIUM RIGHT VENTRICLE LEFT ATRIUM LEFT VENTRICLE SEPTOM.

PULMONARY VEIN.

AORTA LEFT VENTRICU.

VENA CAVA.

PULMONARY ARTERY VENTRICLE.

VENA CAVA AORTA RIGHT ATRIUM RIGHT VENTRICLE PULMONARY ARTERY PULMONARY VEIN LEFT ATRIUM LEFT VENTRICLE SEPTUM.

A auS001U.

FUNCTION OF HEART • Pumping oxygenated blood to the other body parts. • Pumping hormones and other vital substances to different parts of the body. • Receiving deoxygenated blood and carrying metabolic waste products from the body and pumping it to the lungs for oxygenation. • Maintaining blood pressure..

BLOOD -THE PIPELINE.

DEFINITION ? The tube like structures which carry the blood through cells, tissues and organs are called BLOOD VESSELS..

ARTERIES.

STRUCTURE Tunica Intima Tunica Media Tunica Externa.

APTbPlbS • Carry blood away from heart • Carry oxygenated VEINS • Carry blood to the heart. • Carry deoxygenated blood except blood except Pulmonary artery. • Carry blood under High pressure • Have THICK muscular and elastic walls. Connective tissue provides strength. • Lumen is narrow. Pulmonary vein. • Carry blood under negative pressure. • Have THIN walls and less muscular tissue than artery • Less connective tissue. • Lumen is wide..

Vein Venule Capillaries , Arteriole CAPILLARIES Molecules can diffuse through their one cell thick wall..

THE LYMPHATIC SYSTEM.

WHBT 15 LYMPH ? Lymph is another fluid involved in transportation. Some amount of plasma, proteins and blood cells escape into the intercellular spaces in the tissues to form lymph or tissue fluid. Lymph is similar to blood plasma but colorless and contains less protein..

(499 BLOOD THE FLUID CONNECTIVE T155UE.

BLOOD CON515T5 OF PLASMA • 55% of blood • Light yellow coloured when separated from rest of the blood • Contains salts, enzymes and water WBC • 1% of blood • Granulocytes & Agranulocytes • Helps fight the infection. • Also called leukoc es or the So dier cells. RBC 40-45% of blood • Biconcave disk with flattened center • Contains hemoglobin which gives red colour to the blood. • Helps carry oxygen from the lungs to the rest of the body and then returns carbon dioxide from the body to the lungs PLATELET • Less than 1% of blood • Also called thrombocytes. • Helps the blood clotting process by gathering at the Site of infection, sticking to the lining of injured blood vessel and forming a latf01'111 on which hood clotting OCCUI'..

WBC o-_öiö_ Lymphocyte.

GRANULOCYTES • Presence of Granules in the Cytoplasm. • Eosinophils (2-5%) • Basophils. (0.5 - 1%) • Nutrophils (60 - 65%) AGRANULOCYTES • Do not conatins Granules in Cytoplasm. • Monocytes. (2 - 8%) • Lymphocytes. (20 - 40%).

THE.

O Pulm€narv artcty to lungs Velia a I capillanes Capillncsof organs frun tix Pulnunary to lungs Aorta to ARTERY tgtUSPtO VALVE LUNGS Atgn.JM ORGANS VAM AORTA.

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