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Chapter 10
1-15
15
Anatomy
11th Grade
01/24/2012

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Term
BLOOD
Definition
TRANSPORTS NUTRIENTS,WASTES,AND BODY HEAT THROUGH BLOOD VESSELS. IS THE ONLY FLUID TISSUE IN THE BODY; HAS BOTH SOLID AND LIQUID COMPONENTS; IS A COMPLEX CONNECTIVE TISSUE IN WHICH LIVING BLOOD CELLS ARE SUSPENDED IN PLASMA.
Term
FORMED ELEMENTS
Definition
LIVING BLOOD CELLS
Term
PLASMA
Definition
NON-LIVING FLUID MATRIX; MAKES UP 55% OF TOTAL BLOOD VOLUME.
Term
ERYTHROCYTES
Definition
RED BLOOD CELLS; FORMED ELEMENTS THAT FUNCTION IN OXYGEN TRANSPORT; ACCOUNTS FOR 45% OF TOTAL BLOOD VOLUME; HELPS TO TRANSPORT OXYGEN AND CARBON DIOXIDE.
Term
LEUKOCYTES
Definition
WHITE BLOOD CELLS THAT ACT IN VARIOUS WAYS TO PROTECT THE BODY; MAKES UP LESS THAN 1% OF TOTAL BLOOD VOLUME; HELPS WITH IMMUNITY.
Term
PLATELETS
Definition
CELL FRAGMENTS THAT HELP STOP BLEEDING; MAKES UP LESS THAN 1% OF BLOOD VOLUME.
Term
BUFFY COAT
Definition
THIN, WHITE LAYER LOCATED AT THE JUNCTION BETWEEN THE ERYTHROCYTES AND THE PLASMA.
Term
HEMATOCRIT
Definition
THE PERCENTAGE OF THE TOTAL VOLUME OF BLOOD.
Term
CHARACTERISTICS OF BLOOD
Definition
STICKY, OPAQUE FLUID
METALLIC TASTE
COLOR DEPENDS ON THE AMOUNT OF OXYGEN PRESENT
HEAVIER THAN WATER
5 TIMES MORE VISCOUS THAN WATER (THICKER)
SLIGHTLY ALKALINE-PH BETWEEN 7.35 AND 7.45
TEMPERATURE 100.4 F-SLIGHTLY HIGHER THAN BODY TEMPERATURE
ACCOUNTS FOR 8% OF BODY WEIGHT
Term
PLASMA CHARACTERISTICS
Definition
APPROXIMATELY 90% WATER; IS THE LIQUID PART OF THE BLOOD
OVER 100 DIFFERENT SUBSTANCES ARE DISSOLVED IN THIS STRAW-COLORED FLUID; SUBSTANCES SUCH AS NUTRIENTS, ELECTROLYTES, RESPIRATORY GASES, HORMONES, PLASMA PROTEINS, AND VARIOUS WASTES AND PRODUCTS OF CELL METABOLISM
Term
PLASMA PROTEINS
Definition
PROTEINS FOUND IN BLOOD PLASMA; MAKE UP ABOUT 7% OF THE TOTAL BLOOD VOLUME; COMMON PLASMA PROTEINS ALBUMIN, FIBRINOGEN, AND GLOBULIN
Term
ALBUMIN
Definition
A PLASMA PROTEIN THAT ACTS AS A CARRIER TO SHUTTLE CERTAIN MOLECULES THROUGH THE CIRCULATION; AN IMPORTANT BLOOD BUFFER; AND CONTRIBUTES TO THE OSMOTIC PRESSURE OF BLOOD (KEEPS WATER IN THE BLOODSTREAM.
Term
RED BLOOD CELLS
Definition
(AKA ERYTHROCYTES) CARRY OXYGEN THROUGH THE BLOOD TO ALL CELLS OF THE BODY; THEY ARE ANUCLEATE CELLS (LACKS A NUCLEUS) THAT CONTAIN VERY FEW ORGANELLES; LACK MITOCHONDRIA
Term
HEMOGLOBIN
Definition
AN IRON-BEARING PROTEIN THAT TRANSPORTS THE BULK OF THE OXYGEN THAT IS CARRIED IN THE BLOOD; ALSO BINDS WITH A SMALL AMOUNT OF CARBON DIOXIDE.
Term
ERYTHROCYTES
Definition
SMALL, FLEXIBLE CELLS SHAPED LIKE BICONCAVE DISCS (FLATTENED DISCS WITH DEPRESSED CENTERS ON BOTH SIDES(LOOKS LIKE A MINI DONUT) 5 MILLION CELLS PER TINY DROP OF BLOOD; A SINGLE CELL CARRIES ABOUT 250 HEMOGLOBIN MOLECULES AND 1 BILLION MOLECULES OF OXYGEN.
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