Blood - ANSWER Connective tissue made of plasma, erythrocytes,
leukocytes, and platelets.
Formed elements - ANSWER red blood cells, white blood cells and
platelets, which together make up 45% of blood volume.
Buffy coat - ANSWER A thin light-coloured layer of white blood cells
and platelets that lie between a top layer of plasma and red blood cells
Plasma - ANSWER Fluid portion of blood which makes up 55% of
blood volume.
Hematopoiesis - ANSWER Formation of blood cells.
Myeloid tissue - ANSWER Tissue in the bone marrow in which the
various classes of blood cells are produced except lymphocytes. Found
mostly in the sternum, ribs and hips.
Lymphoid tissue - ANSWER Tissue composed of lymphocytes
supported by a meshwork of connective tissue; includes tonsillar tissue,
lymph nodes, and lymphatic organs.
Erythrocyte - ANSWER A mature red blood cell. It has a unique shape
of a biconcave disc and transports oxygen and carbon dioxide. These
types of cells have a lifespan of 80-120 days.
Oxyhemoglobin (HbO2) - ANSWER Hemoglobin combined with
oxygen.
Carbaminohemoglobin (HbCO2) - ANSWER The compound formed by
the union of carbon dioxide with hemoglobin.
, Neutrophil - ANSWER A type of white blood cell that engulfs invading
microbes and contributes to the nonspecific defenses of the body
against disease.
Eosinophil - ANSWER White blood cell containing granules that stain
red; associated with allergic reactions due to high concentrations
present during long term reactions. However, it's specifically defence
against parasites.
Basophil - ANSWER White blood cells containing granules that stain
blue; associated with release of histamine and heparin, inflammatory
response.
B lymphocytes (B cells) - ANSWER Lymphocyte that matures in the
bone marrow and secretes antibodies.
T lymphocytes (T cells) - ANSWER Lymphocyte that matures in the
thymus and acts directly against antigens in cell-mediated immune
responses.
Monocytes - ANSWER An agranular leukocyte/phagocyte that is able
to migrate into tissues and transform into a macrophage.
Platelet - ANSWER Small blood fragment that collects at sites of injury
to begin the clotting process.
Complete blood count (CBC) - ANSWER Comprehensive blood test
that includes red blood cell count (RBC), white blood cell count (WBC),
hemoglobin (Hgb), hematocrit (Hct), white blood cell differential, and
platelet count.
Hemocrit (Hct) - ANSWER Volume of RBC's (in ml) of packed red
blood cells per 100ml of blood
Normal value: Adult male 40-54%;
female 36-46%
Hemoglobin (Hb) molecule - ANSWER Consists of two alpha and beta
polypeptide chains and iron-containing heme groups.
leukocytes, and platelets.
Formed elements - ANSWER red blood cells, white blood cells and
platelets, which together make up 45% of blood volume.
Buffy coat - ANSWER A thin light-coloured layer of white blood cells
and platelets that lie between a top layer of plasma and red blood cells
Plasma - ANSWER Fluid portion of blood which makes up 55% of
blood volume.
Hematopoiesis - ANSWER Formation of blood cells.
Myeloid tissue - ANSWER Tissue in the bone marrow in which the
various classes of blood cells are produced except lymphocytes. Found
mostly in the sternum, ribs and hips.
Lymphoid tissue - ANSWER Tissue composed of lymphocytes
supported by a meshwork of connective tissue; includes tonsillar tissue,
lymph nodes, and lymphatic organs.
Erythrocyte - ANSWER A mature red blood cell. It has a unique shape
of a biconcave disc and transports oxygen and carbon dioxide. These
types of cells have a lifespan of 80-120 days.
Oxyhemoglobin (HbO2) - ANSWER Hemoglobin combined with
oxygen.
Carbaminohemoglobin (HbCO2) - ANSWER The compound formed by
the union of carbon dioxide with hemoglobin.
, Neutrophil - ANSWER A type of white blood cell that engulfs invading
microbes and contributes to the nonspecific defenses of the body
against disease.
Eosinophil - ANSWER White blood cell containing granules that stain
red; associated with allergic reactions due to high concentrations
present during long term reactions. However, it's specifically defence
against parasites.
Basophil - ANSWER White blood cells containing granules that stain
blue; associated with release of histamine and heparin, inflammatory
response.
B lymphocytes (B cells) - ANSWER Lymphocyte that matures in the
bone marrow and secretes antibodies.
T lymphocytes (T cells) - ANSWER Lymphocyte that matures in the
thymus and acts directly against antigens in cell-mediated immune
responses.
Monocytes - ANSWER An agranular leukocyte/phagocyte that is able
to migrate into tissues and transform into a macrophage.
Platelet - ANSWER Small blood fragment that collects at sites of injury
to begin the clotting process.
Complete blood count (CBC) - ANSWER Comprehensive blood test
that includes red blood cell count (RBC), white blood cell count (WBC),
hemoglobin (Hgb), hematocrit (Hct), white blood cell differential, and
platelet count.
Hemocrit (Hct) - ANSWER Volume of RBC's (in ml) of packed red
blood cells per 100ml of blood
Normal value: Adult male 40-54%;
female 36-46%
Hemoglobin (Hb) molecule - ANSWER Consists of two alpha and beta
polypeptide chains and iron-containing heme groups.
