lab 7 blood Flashcards
(71 cards)
___ cells have biconcave discoid shape
red blood cells in mammals
Red blood cells
Small, anucleate cells
acidophilic -stain orange to red
Their diameter varies with species: goats -4.1 microns (the smallest), dogs - 7.0 microns (the largest).
Their biconcave shape causes a central pallor.
red blood cell aka
Erythrocytes
White Blood Cells aka
Leukocytes)
Type of white blood cells
Neutrophils eosinophils basophils monocyte lymphocyte
WBC: the nucleus contains condensed areas of chromatin and appears segmented, hence the name polymorphonuclear. The cytoplasm is pale gray with faintly staining granules.
neutrophils
most numerous type of white blood cells
neutrophils
Eosinophils
polymorphonuclear
granules differ in shape and size by species
pink granules
sometimes plasma membrane may be broken and the granules are escaping
Basophils
very rare
nucleus is segmented and contains areas of condensed chromatin,
granules stain dark blue or purple and vary in size and number.
Lymphocytes
spherical cells that are usually smaller than neutrophils.
nucleus is round with coarse, clumped chromatin.
There is a thin rim of blue cytoplasm; however, the larger lymphocytes may have proportionately more cytoplasm.
____ normally constitute the majority of leukocytes in pigs and ruminants.
Lymphocytes
monocytes
These cells are slightly larger than neutrophils and lymphocytes.
The nucleus is kidney-shaped, stains lighter.
Cytoplasmic vacuoles are often present and vary in size giving a foamy appearance to the blue-gray cytoplasm.
In monocyte, ___ are often present and vary in size giving a foamy appearance to the blue-gray cytoplasm.
Cytoplasmic vacuoles
Platelets
fragments of megakaryocyte cytoplasm and contain no nuclei.
faintly-stained, blue, granular structures.
Sometimes they appear clumped.
fish, amphibians, reptiles, and avian erythrocytes have ___
a nucleus
Erythrocyte in bird
The mature red blood cell is an oval cell with oval nucleus.
The cell is larger than a normal mammalian red cell;
acidophilic, orange-yellow color to the cytoplasm.
In erythrocytes, less mature cells will have a more ____ appearance. These younger cells are fairly common in the peripheral blood of normal birds.
blue, basophilic
Thrombocyte
(Spindle Cell, Thigmocyte)
(similar to platelets but not identical functions)
dark, condensed nucleus with pale basophilic cytoplasm.
1-4 dark magenta specific granules, contain 5-Hydroxytryptamine (5-HT, or serotonin)
Thrombocytes granules contain:
5-Hydroxytryptamine (5-HT, or serotonin)
release of 5-HT causes the thrombocytes to clump
(similar to platelets but not identical functions)
Heterophils
neutrophils on non mammals
granules: large and rod-shaped. They usually stain red to pink but may be gray in color and are scattered throughout the cell.
nucleus is lobulated.
Heterophils are similar to
pseudo-eosinophil of lagomorphs (rabbits and hares) hystricomorph rodents (porcupine, capybara). neutrophils (mammals)
Thrombocytes will typically have a ___nucleus and ___ colored cytoplasm than lymphocytes.
denser
paler
heterophil
non mammal
thrombocyte
