Blood Anatomy Study Guide

Components of Blood
protein, erythrocytes, leukocytes, platelets, plasma

Buffy Coat
composed of leukocytes and platelets, located between erythrocytes and plasma

pH of Blood
7.35-7.45

Temperature of Blood
100.4 F

Percent of blood that are erythrocytes
45%

Percent of blood that is plasma
55%

Amount of Blood in a Healthy Male
5-6 liters

Percent of BW is Blood
8%

Percent of Plasma is Water…
90%

Plasma is made up of…
dissolved substances

Erythrocytes
red blood cells

Anemia
decrease in oxygen-carrying capacity

Polycythemia
excessive RBC’s

Leukocytes
white blood cells

Functions of Erythrocytes
carry oxygen, biconcave, hemoglobin, anucleate, few organelles

Functions of Leukocytes
nucleus and organelles, diapedesis

Diapedesis
able to move in and out of cells

Leukocytosis
high WBC count; caused by infection

Leukopenia
low WBC count; caused by drugs

Leukemia
excess, immature WBC’s

Granulocytes
neutrophils, eosinophils, basophils

Neutrophils
multi-lobed nuclei, phagocyte at infection site

Eosinophils
brick-red cytoplasmic granules, respond to allergies/parasites

Basophils
histamine-containing granules, initiate inflammation

Agranulocytes
lymphocytes, monocytes

Lymphocytes
nucleus fills cell, immune response

Megakaryocytes
ruptured multinucleate cells, needed for clotting

Platelet plug formation
collagen exposed, platelets get sticky and cling to collagen, anchored ones release chem to attract more, pile up to form plug

Coagulation
the process of blood clotting

Thrombus
clot in unbroken vessel

Embolus
clot that breaks loose, can clog elsewhere

Thrombocytopenia
platelet deficiency

Hemophilia
bleeding disorder, clotting factors missing

Shock
loss of over 30% of blood

Antigens
body sees as foreign, may be attacked by immune system

Antibodies
recognizers

ABO groups
based on presence or absence of Type A or Type B antigens

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