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23 Cards in this Set

  • Front
  • Back

Blood (definition)

-liquid connective tissue

-consists of cells surrounded by a liquid extracellular matrix

-heavier, thicker, and more viscous than water

Extracellular matrix (definition)

-known as blood plasma

-suspends various cells and cell fragments

Interstitial fluid (definition)

-fluid that bathes body cells

-constantly renewed by blood

-ECF plasma


-w/o clotting proteins= serum

-plasma= whole blood-formed elements

Plasma-Albumins (function)

-important blood buffers

-maintains blood osmotic pressure

-produced by liver

Plasma-Globulins (function)

-alpha+beta: produced by liver, transport proteins

-gamma:immunoglobulins, antibodies

Clotting protein/Fibrinogen (definition+function)

-produced by plasma cells

-include fibrinogent prothrombin (from liver)

Formed elements (definition)

-composed of three principal components

-RBCs, WBCs, and platelets

-hemopoiesis:process to develop formed elements

RBCs (definition)

-proeythroblasts are precursor cells

-biconclave shape helps w/oxygen transport, large surface area

WBCs (definition)

-are leukocytes

-classified as either granular or agranular

Leukocytes (definition)

-precursor for all granular leukocytes is myeloblasts

-precursor for monocytes is monoblasts

-precursor for lymphocytes is lymphoblasts

Neutrophil (definition)

-are neutral to acidic and basic dyes

-take pale lilac color

-nuclei w/2-5 lobes;polymorphonuclear

-younger cells called 'bands'

-contain peroxidases+defensins

Neutrophil (function)

-phagocytes+destruction of bacteria and fungi

-defensins cause cytolysis

-first to arrive at sight of infection

Eosinophil (definition)

-granules stain red/orange with acidic dyes

-nucleus has 2 lobes (telephoic receiver)

-granules fill the cytoplasm

Eosinophil (function)

-have digestive enzymes

-lessen severity of allergy reaction (phagocytes antigen-antibody complex)

-combat parasites

Basophil (definition)

-nuclei bilobed/irregular

-granules not uniformed, veil nuclues

-stain blue/purple w/basic dyes

Basophil (function)

-liberate histamine (vasodilator)+herapin (anti-coagulant)

-involved w/inflammatory+hypersensitivity reactions

Lymphocytes (definition)

-rim of cytoplasm surrounds the nucleus

-small portion seen in blood

-rest are in lymphoid tissue

-large spherical

-stain dark purple in nucleus

Lymphocytes (function)

-t-lymphocytes work against viruses, bacteria, fungi, trnasplanted and mast tumor cells

-b-lymphocytes give rise to plasma cells that secrete antibodies

-immune response is through t+b cells

Monocytes (definition)

-dark purple nucleus

-nucleus is kidney/horse-shoe shaped

-pale blues foamy cytoplasm

Monocytes (function)

-combat viral, fungi, and intra-cellular bacterial infection

-last to arrive at sight of infection

-engulf microbes and debris

-migrate to tissue to form macrophages; fixed macrophages and migrate macrophages

Platelets (definitions)

-are fragments of cells enclosed in plasma membrane

cytoplasm+mitochondria are there

-no nucleus

-formed from megakaryocytes

Platelets (function)

-form platelet plug in homeostasis

-release chemicals that promote vascular spasm and blood clotting