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50 terms

bio169 test two

STUDY
PLAY
All of the following can be expected with polycythemia except
low blood viscosity
No visible cytoplasmic granules are present in
monocytes.
Which of the following is not a phase of hemostasis
fibrinolysis
What is the average normal pH of blood?
7.4
Place the following in correct developmental sequence:
Proerythroblast, late erythroblast, normoblast, reticulocyte
The slowest step in the clotting process is
formation of prothrombin activator
Thromboembolic disorders
include embolus formation, a clot moving within the circulatory system.
Which of the following is not a cause of bleeding disorders?
excess secretion of platelet-derived growth factor (PDGF)
Which of the following is characteristic of all leukocytes?
They are nucleated
Which of the following is true about blood plasma
It is about 90% water
Platelets:
stick to the damaged area of a blood vessel and help seal the break .
Which sequence is correct for the following events?
formation of thromboplastin, prothrombin, thrombin, fibrinogen, fibrin, clot retraction
Together, leukocytes and platelets comprise approximately---- of total blood volume.
1%
Fred's blood was determined to be AB positive. What does this mean?
There are no antibodies to A, to B, or to Rh antigens in the plasma
Which of the following is a precursor of a basophil?
myeloblast
All of the following conditions impair coagulation except
vascular spasm
When can erythroblastosis fetalis not possibly happen in the child of an Rh negative mother?
if the father is Rh-
Blood is a
suspension.
What organ in the body regulates erythrocyte production
Kidney
The shelf life of whole collected blood at 4° C is about
35 days
Which of the following is a regulatory function of blood?
maintenance of normal pH in body tissues
Which of the following is a protective function of blood?
maintenance of body temperature
Which of the following is not a phase of erythropoiesis?
production of ribosomes
Which of the following might trigger erythropoiesis?
hypoxia of EPO-producing cells
As red blood cells age ________.
membranes "wear out" and the cells become damaged
The primary source of RBCs in the adult human being is the bone marrow in the shafts of the long bones.
False
Each hemoglobin molecule can transport two molecules of oxygen.
False
Diapedesis is the process by which red blood cells move into tissue spaces from the interior of blood capillaries.
False
Positive chemotaxis is a feedback system that signals leukocyte migration into damaged areas.
True
A condition of leukocytosis indicates over 11,000 white blood cells per cubic millimeter in the blood.
True
Basophils increase in number when parasitic invasion occurs.
False
A person with type B blood could receive blood from a person with either type B or O blood.
True
Leukocytes move through the circulatory system by amoeboid motion.
False
Granulocytes called neutrophils are phagocytic and the most numerous of all white blood cell types.
True
All lymphocytes are leukocytes, but not all leukocytes are lymphocytes.
True
The immediate response to blood vessel injury is clotting.
False
The process of fibrinolysis disposes of bacteria when healing has occurred.
False
The RBC "graveyard" is the liver.
False
Hemorrhagic anemias result from blood loss.
True
White blood cells are produced through the action of colony-stimulating factors.
True
Hemoglobin is made up of the protein heme and the red pigment globin.
False
Each heme contains an atom of iron and can transport one molecule of oxygen.
True
________ is a pivotal molecule associated with the external surfaces of aggregated platelets and is involved in the intrinsic and extrinsic mechanisms of blood clotting.
PF3
An individual who is blood type AB negative ________.
can receive any blood type in moderate amounts except that with the Rh antigen
The most abundant plasma protein is ________.
albumin
When neither anti-A nor anti-B clots on a blood plate, the blood is type ________.
O
Select the correct statement regarding blood cell formation.
Red marrow is the main site of blood cell formation throughout adult life.
James has a hemoglobin measurement of 16 g/100 ml blood. This is ________.
Within normal range
Which of these is not a normal plasma protein?
Thromboplastin
All of the following can be expected with polycythemia except ________.
low blood viscosity