PPT-Blood cells – Platelets (Thrombocytes)

By Dr Sunita Mittal Learning Objectives Platelets Morphology Hemostasis Primary hemostasis Platelet plug formation Disorders of p rimary hemostasis Secondary hemostasis Disorders of secondary hemostasis. Blood transports materials through out the body inside blood vessels.. Plasma. Straw colored, nonliving part of blood.. 90% Water. Helps to regulate body temperature. Contains Electrolytes. Plasma transports blood cells, products of digestion and hormones throughout the body.. Blood . is the body’s only fluid tissue. It is composed of liquid plasma and formed elements. Formed elements include: . Erythrocytes, or red blood cells (RBCs). Leukocytes, or white blood cells (WBCs). “River of life”. Transports everything that must be carried from one place to another within the body:. Nutrients. Wastes. Heat. Composition of Blood. Blood cells or formed elements:. Red blood cells – transports oxygen. Blood transports everything (nutrients, wastes, and body heat). Blood is a complex fluid connective tissue with both solid and liquid components.. Solid – living blood cells (formed elements). Erythrocytes (red blood cells –RBCS). Waterford, WI. A wound occurs when the a break in tissue occurs. . This can be because of trauma.. It can also be intentional, such as is the case during a surgery.. There are . five kinds . of . wounds (PAAIL)..  . Platelets . are small colorless. ,. Non . nucleated and moderately refractive bodies which are considered to be the fragments of cytoplasm. .. . Diameter. : 2.5 μ (2 to 4 μ). Volume: 7.5 cu μ (7 to 8 cu μ. in the US and Canada Each day 43000 units of donated blood are used in the US and Canada3Someone needs blood every 2 seconds About 37 out of every 100 Americans are eligible to donate blood 150 but video. What substances does blood transport?. How does blood protect the body from infection?. How are blood cells manufactured?. Think about it. 10. Lesson 1: The Function and Composition of the Blood. PGs, TXs, LTs). Objectives:. . Discover and distinguish relationships between . different types of eicosanoid molecules . (PGs, TXs, LTs). Gain knowledge of enzymes that create PGs . and TXs (COX-1 and -2). Average adult = 8-10 pints of blood. Composition:. PLASMA – liquid portion of blood without cellular components. Serum – plasma after a blood clot is formed. Cellular elements are red cells, white cells and platelets. highly specialized tissue . composed of more than 4,000 different kinds of components. . .   . Four . of the most important . :. ones . are . red . cells,. . white cells. , . Normal Blood Flow. To have normal blood flow, . blood . must be kept at . an exact . viscosity. . (thickness). Too thin, and the . smallest cuts would cause a pet to bleed to death. Too thick, and the . .” . . –Robert Beal, past director of International Federation of Red Cross. Transfusions: History. 1660s: First experiments in blood transfusion, transfused dog blood to humans. Patient died and experiments were banned.. Fluids of the Body . Cells of the body are serviced by 2 fluids. blood. composed of plasma and a variety of cells. transports nutrients and wastes. interstitial fluid. bathes the cells of the body. Nutrients and oxygen diffuse from the blood into the interstitial fluid & then into the cells.