Lt W3: Blood Flashcards
What type of tissue is blood
Connective tissue
Blood is composed of
Cells or formed elements, extracellular matrix which is plasma
Serves as a solvent for a variety of solutes
Plasma
What are the blood functions
Transports oxygen carbon dioxide nutrients wastes and hormones
Regulate pH by buffers, temperature and hydration
Defense against blood loss, microbes and toxins
Describe RBCs
They are called erythrocytes
Biconcave disc
anucleated cells
devoid
The lifespan of RBCs are
120 days
90% phagocytosis by macrophages
The rest will break down intravascularly releasing hemoglobin into the blood
Are much larger than RBCs and have a nucleus
Wbc’s
Have a defense role against foreign substance
Wbc
Where does the white blood cell mainly function
Ct
WBCs are named according to
Nuclear morphology
cytoplasmic granules
staining properties
An example of nuclear morphology is
Multilobed and mononuclear
All WBCs have ____lysosomal granules while only three have ____granules
Nonspecific
Specific
% of neutrophils
40-75
Lobes of nucli for neutrophils
Multilobed with 2-5 lobes of nuclear material connected by a thin strand of chromatin
Neutrophils life span
2-3 days
Types of granules of Neutrophils
Specific
Azurophilic
Tertiary ( stain deep blue or purple)
First line of defense
Neutrophils