-
What is the effect of low plasma albumin?
D.
-
What is the life span of an erythrocyte (in days)?
C.
-
Which statement concerning erythrocytes is true?
C.
-
Granulocytes that contain granules of vasoactive amines, such as histamine, are called:
- C.
- Basophils contain cytoplasmic granules that hold an abundant mixture of biochemical
- mediators, including histamine, chemotactic factors, proteolytic enzymes, and an anticoagulant (heparin)
-
Which of the following are formed elements of the blood that are not cells but are
disk-shaped cytoplasmic fragments essential for blood clotting?
- A.
- Platelets (thrombocytes)
-
Blood cells that differentiate into macrophages are known as:
- A.
- Only monocytes migrate into a variety of tissues and fully mature into tissue macrophages and myeloid dendritic cells
-
Without prior exposure to an antigen, which cells are able to destroy some types of tumor
cells and some virus-infected cells?
A.
-
What is the life span of platelets (in days)?
B.
-
Fetal hematopoiesis occurs in which structure?
D.
-
What is the consequence of a splenectomy?
C.
-
During an infection, why do lymph nodes enlarge and become tender?
A.
-
Which blood cells are the chief phagocytes involved in the early inflammation process?
D.
-
Which hemoglobin is made from oxidized ferric iron (Fe3+) and lacks the ability to bind
oxygen?
C.
-
The absence of parietal cells would prevent the absorption of an essential nutrient
necessary to prevent which type of anemia?
- C.
- Dietary vitamin B12 is a large molecule that requires a protein secreted by parietal cells
- into the stomach (intrinsic factor [IF])
-
Which nutrients are necessary for the synthesis of DNA and the maturation of
erythrocytes?
C.
-
Which nutrients are necessary for hemoglobin synthesis?
A.
-
Recycling of iron from erythrocytes is made possible by which of the following?
B.
-
By which structure are mature erythrocytes removed from the bloodstream?
C.
-
Which substance is used to correct the chronic anemia associated with chronic renal
failure?
C.
-
What is the role of thromboxane A (TXA2) in the secretion stage of hemostasis?
B.
-
Which of the following is the role of nitric oxide (NO) in hemostasis?
D.
-
The drug heparin acts in hemostasis by which processes?
D.
-
What is plasmin’s role in the clotting process?
C.
-
What does polycythemia at birth indicate?
D.
-
Where are Kupffer cells located?
A.
-
Where are Langerhans cells found?
D.
-
What is the role of collagen in the clotting process?
D.
-
Which form of iron (Fe) can be used in the formation of normal hemoglobin?
- A.
- It is crucial that the iron be correctly charged; only reduced ferrous iron (Fe2+) can bind
- oxygen in the lungs and release it in the tissues.
-
What changes to the hematologic system is related to age?
B.
-
What is the function of erythrocytes?
A.
-
Which statement about plasma proteins is false?
C.
-
What is not a primary anticoagulant mechanisms?
B.
-
Which statement is false regarding the role of the endothelium in clot formation?
D.
-
Which statement does not characterize albumin?
B.
-
Endomitosis
- E.
- During thrombopoiesis, the megakaryocyte progenitor is programmed to undergo an
- endomitotic cell cycle called endomitosis, during which DNA replication of platelets occurs
-
Hemostasis
C.
-
Hematopoiesis
A.
-
Erythropoiesis
E.
-
Phagocytosis
D.
|
|
