Blood WK7 L1 Flashcards
WHAT ARE THE FUNCTIONS OF THE CIRCULATORY SYSTEM?
BLOOD CARRIES 02 FROM LUNGS TO TISSUES - BLOOD CARRIES C02 FROM TISSUES TO LUNGS - TRANSPORTATION OF WASTE TO KIDNEYS - TRANSPORTS SUBSTRATES FROM DIGESTIVE TRACT TO LIVER - BLOOD CONTAINS ANTIBODIES TO STOP INFECTION - TRANSPORTATION OF HORMONES IN BLOOD - PLATELETS CLOT TO PREVENT BLOOD LOSS - MAINTAINS FLUID VOLUME - MAINTAINS PH - REGULATES BODY TEMP
HOW MNAY LITERS OF BLOOD DO ADULTS HAVE
4-6 LITRES
WHAT ARE THE COMPONENTS OF BLOOD?
PLASMA - FORMED ELEMENTS
WHAT IS PLASMA?
EXTRA CELLULAR FLUID BEING 90% WATER 8% PLASMA PROTEINS AND 2% NUTRIENTS HORMONES GASSES WASTES
WHAT ARE FORMED ELEMETS?
WHITE AND RED BLOOD CELLS - PLATELETS
WHAT ARE THE PLASMA PROTEINS?
ALBUMINS - GLOBULINS - FIBRINOGENS
WHAT DO ALBUMINS DO?
MAINTAINS OSMOTIC PRESSURE - INFLUENCES BP - INFLUENCES FLOW AD FLUID BALANCE
WHAT DO GLOBULINS DO?
(ANTIBODIES) ASSISTS WITH IMMUNE SYSTEM FUNCTION -COMES IN ALPHA / BETA / GAMMA
WHAT DO FIBRINOGENS DO?
PRECURSER OF FIBRIN THREADS THAT HELP FORM BLOOD CLOTTS
WHERE ARE PLASMA PROTEINS FORMED?
IN THE LIVER EXCEPT GOBULINS WHCH ARE FORMED BY WHITE BLOOD CELLS
WHAT IS IN THE PLASMA PROTEINS?
NOTROGENOUS COMPOUNDS OF AMINO ACIDS AND NITROGENOUS WASTE (UREA) - NUTRIENTS LIKE GLUCOSE VITAMINS FATS MINERALS - 02 AND C02 - ELECTROLYTES LIKE SODIUM AND POTASSIUM
WHAT IS BLOOD VISCOSITY?
HOW THICK OR STICKY THE BLOOD IS
HOW DOES RED BLOOD CELL COUNT AFFECT BLOOD VISCOSITY?
THE MORE RED BLOOD CELLS THE THICKER THE BLOOD IS
HOW DOES BLOOD VISCOSITY AFFECT THE BODY?
THICKER BLOOD IS HARDER TO PUMP AND FLOW WHICH IMPACTS BLOOD PRESSURE AND HEART
WHAT IS BLOOD OSMOLARITY?
CONCENTRATION OF SOLUTES IN THE BLOOD
WHAT HAPPENS WITH LOW BLOOD OSMOLARITY?
LACKING IN BLOOD PROTEINS - SWELLS TISSUE - DECREASES BLOOD PRESSURE
WHAT HAPPENS WITH HIGH BLOOD OSMOLARITY?
INCREASES BLOOD PRESSURE
WHAT ARE THE FEATURES OF RED BLOOD CELLS?
DISC SHAPED CELL WITH NO NUCLEUS OR ORGANELLES - CARRIES THE HAEMOGLOBIN
WHAT ARE THE FUNCTIONES OF RED BLOOD CELLS?
TRANSPORTS 98.5% OF OXYGEN AND ABOUT 20% OF CO2 - INCREASES DIFUSION RATE OF GASSES - HAEMOGLOBIN TRANSPORTATION
HOW MANY 02 MOLECULES CAN 1 HAEMOGLOBIN CARRY?
4
WHAT IS HEMATOCRIT?
THE AMMOUNT OF WHOLE BLOOD VOLUME COMPOSED OF RED BLOOD CELLS
WHAT IS THE HEMATOCRIT PERCENTAGE FOR MALE AND FEMALE?
MEN - 42-52%
WOMEN - 37-48%
WHAT IS HAEMOGLOBIN CONCENTRATION VALUES FOR MALE AND FEMALE?
MEN - 130-180 G/L
WOMEN - 120-160 G/L
WHAT IS RED BLOOD CELL COUNTS FOR MALE AND FEMALE?
MALE - 4.6-6.2
FEMALE - 4.2-5.4
WHAT IS RED BLOOD CELL COUNTS FOR MALE AND FEMALE?
MALE - 4.6-6.2
FEMALE - 4.2-5.4
WHY ARE BLOOD VALUES LOWER IN WOMEN?
TESTOSTERONE STIMULATES RED BLOOD CELL COUNT - MENSTURAL CYCLES
WHY ARE BLOOD VALUES LOWER IN WOMEN?
TESTOSTERONE STIMULATES RED BLOOD CELL COUNT - MENSTURAL CYCLES
HOW MANY DAYS DO RED BLOOD CELLS LAST FOR?
120 DAYS
WHERE ARE RED BLOOD CELLS PRODCUED?
IN RED BONE MARROW AT ENDS OF BONES
WHAT IS ERYTHROPOIESIS?
PRODUCTION FO RED BLOOD CELLS
WHERE DO THE RED BLOOD CELLS GO WHEN THEY DIE?
GET CAUGHT IN SPLEEN
WHAT HAPPENS TO THE RED BLOOD CELLS WHEN THEY DIE?
MACROPHAGES IN SPLEEN BREAKDOWN CELL
