Blood Flashcards
(63 cards)
SPECIALIZED connective tissue consisting of cells and fluid extracellular material
Plasma
Per adult, on average liters of blood
5 liters
Formed Elements in the plasma:
RBC
WBC
Platelets
Distributing vehicle transporting oxygen, carbon dioxide, metabolites, hormones, and various substances
blood
Distribution of nutrients
blood
Collection of wastes
blood
Distribution of heat thereby leading to
body temperature regulation
Maintenance of acid-base balance
homeostasis
ANUCLEATED, with an abundance of
HEMOGLOBIN
erythrocytes
Biconcave in shape
erythrocytes
Life span erythrocytes
120 days
Senescent or worn-out RBCs are
identified and removed from the circulation
mainly
by
MACROPHAGES of the SPLEEN,
LIVER, and BONE MARROW
WBCs leave the blood and migrate to the tissues where they
become functional and perform various functions in relation to the
body’s defense system.
leukocytes
kill and phagocytose bacterial
neutrophils
kill helminthic and other parasites, modulate local inflammation
eosinophils
modulate inflammation, release histamine during allergy
basophils
effector and regulatory cells for adaptive immunity
lymphocytes
precursors of macrophages and other mononuclear phagocytic cells
monocytes
Granulocytes (3)
neutrophils, eosinophils, basophils
Agranulocytes (2)
lymphocyte, monocyte
Possess two major types of abundant cytoplasmic granules
granulocytes
lysosomes, azurophilic granules
specific granules: basophils, eosinophils, neutrophils
Multilobular (2-5 lobes linked by thin nuclear
extensions)
neutrophils
Sausage shaped nucleus “drumsticks”
neutrophils
Hypersegmented Neutrophils
more than 5 lobes