Card Set Information
A&P Final review
The composition of blood is:
55% plasma, 45% formed elements
A hematocrit of 45% means that in every 100 ml of whole blood:
there are 45 ml of red blood cells and 55 ml of plasma.
Reduced red blood cell numbers cause:
Which formed elements carry oxygen?
All formed elements arise from which stem cell?
Hematocrit and packed cell volume (PCV) are ______ terms.
A reticulocyte count can't indicate to a physician the rate of leukocyte ______.
Oxygen deficiency increases RBC numbers by increasing the secretion of erythropoietin by the _____.
classification of leukocytes that contain cytoplasmic granules:
most numerous leukocytes
granulocytes that release heparin and histamine
granulocytes that protect against infections from parasitic worms and allergic reactions
agranulocytes that produce antibodies
agranulocytes that enter tissue spaces as macrophages
cell fragments that function in blood clotting and hemostasis
cells from which platelets are formed
classification of leukocytes without cytoplasmic granules
classification of formed elements that are nucleated cells lacking hemoglobin
A person with antibody A in his or her plasma would have which blood type?
People with type O blood are considered to be universal donors because their blood contains:
neither A nor B antigens on their RBCs
A blood type and crossmatch is performed prior to transfusion. If this procedure is not competed:
the blood may agglutinate
blood lysis my occur
a transfusion reaction may occur
Type AB blood is considered to be the __________ ________.
Type AB blood contains ___ plasma antibodies.
Most blood does not contain the _______ antibodies.
____ is a plae yellow fluid that accounts for more than half of the blood volume.
_____ is whole blood minus the clotting elements.
What are critial components of coagulation?
For prothrombin to be synthesized by the liver, an adequate amount of which vitamin is required?
What hasten clotting?
rough spot in the endothelium
abnormally slow blood flow
______ is an excess of RBCs.
_______ _______ often results from the destruction of bone marrow by drugs, toxic chemicals, or radiation.
A type of hemolytic anemia common to African-Americans is _____ _____ _____.
Sickle Cell Anemia
_________ refers to an abnormally low WBC count.
______ is a stationary clot.
A circulating clot is a(n) _____.
________ is a type of X-linked inherited disorder that results from a failure to form blood-clotting factore VIII, IX, or XI.
Sickle cell anemia is caused by:
a genetic defect
Polycythemia is characterized by an abnormally high number of:
PERNICIOUS anemia is caused by a lack of vitamin:
Deficiency in the number or function of erythrocytes is called:
They have ability to fight infections
They provide defense against certain parasites
They provide immune defense
Characteristics of what?
What is found in Serum?
water & hormones
What is NOT found in blood plasma?
An allergic reaction may increase the number of:
What is a blood clot that is moving through the body called?
When could difficulty with the Rh blood factor arise?
Rh-negative woman and an Rh-positive man produce a child
What is the primary function of hemoglobin?
Steps involved in blood clot formation?
A blood vessel is injured and platelet factors are formed
Fibrinogen is converted to fibrin
contain A & B antigens
contains anti-A and anti-B antibodies
thin, white layer of leukocytes and platelets
deccrease in WBCs
volume percent of RBCs in whole blood
Some WBCs are capable of diapedesis; this means they can:
migrate out of blood vessels into tissue spaces
What has the greatest power of phagocytosis in the tissue?
The major ingredient in hemoglobin that allows oxygen to be transported is:
A person with only antibody B in her or her plasma would have which blood type?
Thrombocytes are used for:
What cell types are classified as agranulocytes?
Under the microscope, erythrocytes appear as:
biconcave disks without nuceli
What is plasma?
Liquid part of blood.
Made up of 90% water and 10% solutes