View source for Histology MCQs/Blood and Hematopoiesis

[[File:Blausen 0909 WhiteBloodCells (notext).png|thumb|]]
<quiz display=simple>
{Which function do have '''azurophilic granules''' in leukocytes?
|type="()"}
- Derivatives of the smooth endoplasmic reticulum
- Derivatives of the cytoskeleton
- Cell inclusions
+ Lysosomes

{Diameter of '''basophilic erythroblast''' is:
|type="()"}
- 6 to 8 μm
+ 10 to 16 μm
- 20 μm
- 22 to 25 μm

{Diameter of '''megakaryocyte''' is:
|type="()"}
- 5 to 20 μm
- 20 to 50 μm
+ 50 to 150 μm
- 150 to 1000 μm

{Diameter of '''myeloblast''' is:
|type="()"}
- 1 to 5 μm
- 5 to 10 μm
- 10 to 15 μm
+ 15 to 20 μm

{Diameter of '''orthochromatophilic erythroblast''' is:
|type="()"}
- 6 to 8 μm
+ 8 to 10 μm
- 10 to 18 μm
- 20 to 25 μm

{Diameter of '''proerythroblast''' is:
|type="()"}
+ 20 μm
- 40 μm
- 60 μm
- 80 μm

{What is a a '''differential blood count''' (leucogram):
|type="()"}
- Relative frequency of all formed blood elements
- Absolute number of all formed blood elements
+ Relative frequency of white blood cells
- Absolute number of white blood cells

{What are dimensions of an average '''red blood cell'''?
|type="()"}
+ Diameter 7.5 μm, maximal thickness 2.6 μm, thickness in the middle 0.8 μm
- Diameter 10 μm, maximal thickness 1.6 μm, thickness in the middle 0.1 μm
- Diameter 7.5 μm, maximal thickness 1.6 μm, thickness in the middle 0.8 μm
- Diameter 10 μm, maximal thickness 2.6 μm, thickness in the middle 0.1 μm

{Except one, all below mentioned cells are differentiated monocytes. Which of them is '''the exception'''?
|type="()"}
- Microglia
- Osteoclast
+ Goblet cell
- Kupfer's cell

{How is called first morphologically distinguishable stage of development of '''red blood cells'''?
|type="()"}
- Polychromatophilic erythroblast
- Ortochromatophilic erythroblast
- Basophilic erythroblast
+ Proerythroblast

{How many of '''basophils''' are in the blood?
|type="()"}
+ 0 to 1 % of all WBC's
- 3 to 5 % of all WBC's
- 20 to 30 % of all WBC's
- 60 to 70 % of all WBC's

{How many of '''eosinophils''' are in the blood?
|type="()"}
- 0 to 1 % of all WBC's
+ 2 to 5 % of all WBC's
- 20 to 30 % of all WBC's
- 60 to 70 % of all WBC's

{How many of '''lymphocytes''' are in the blood?
|type="()"}
- 3 to 5 % of all WBC's
- 5 to 20 % of all WBC's
+ 20 to 40 % of all WBC's
- 60 to 70 % of all WBC's

{How many of '''monocytes''' are in the blood?
|type="()"}
- 1 to 3 % of all WBC's
+ 2 to 10 % of all WBC's
- 20 to 30 % of all WBC's
- 60 to 70 % of all WBC's

{How many of '''neutrophilic bands''' are in the blood?
|type="()"}
- 0 to 1 % of all WBC's
+ 2 to 5 % of all WBC's
- 60 to 70 % of all WBC's
||It's a trap! Bands are immature/young neutrophils only.
- 20 to 30 % of all WBC's

{How many of '''neutrophils''' are in the blood?
|type="()"}
- 0 to 1 % of all WBC's
- 3 to 5 % of all WBC's
- 20 to 30 % of all WBC's
+ 60 to 70 % of all WBC's

{How many '''platelets''' (trombocytes) are in the blood?
|type="()"}
- 15 000 to 40 000 in mm³
+ 150 000 to 400 000 in mm³
- 1.5 000 000 to 4 000 000 in mm³
- 15 000 000 to 40 000 000 in mm³

{Which important compounds are inside specific granules of '''basophlis'''?
|type="()"}
+ Heparine a histamine
- Kolagenases
- Defensins
- Lysozym

{In which stage occur changes of nuclear morphology which are hallmark of '''granulocytes'''?
|type="()"}
+ Metamyelocyte
- Promyelocyte
- Myeloblaste
- Myelocyte

{In which stage starts production of '''specific granules'''?
|type="()"}
- Metamyelocyte
+ Promyelocyte
- Myeloblaste
- Myelocyte

{Which stage of development of red blood cells is last stage sensitive to erythropoietin (EPO)?
|type="()"}
- Polychromatophilic erythroblast
- Ortochromatophilic erythroblast
- Basophilic erythroblast
+ Proerythroblast

{Life-span of the '''red blood cell''' is around:
|type="()"}
- 3 to 5 days
- 50 days
- 80 days
+ 120 days

{Main difference between the blood plasma and serum is:
|type="()"}
- Plasma does not contain proteins involved in blood clotting
+ Serum does not contain proteins involved in blood clotting
- Plasma does not contain albumin and prealbumin
- Serum does not contain albumin and prealbumin

{'''Major basic protein''' (MBP) is main part of specific granules of:
|type="()"}
- All granulocytes
- Neutrophlis
+ Eosinophils
- Basophils

{How is called pathological condition where red blood cells of pathological shapes are present?
|type="()"}
+ Poikilocytosis
- Anisocytosis
- Polycytaemia
- Anaemia

{'''Platelets''' (trombocytes) are not assumed to be cells because:
|type="()"}
- Bad formulation of the question, platelets are cells
+ They are fragments of cytoplasm of the megakaryocyte
- It was states so in the past
- They have no nuclei

{Which of following statements about platelets '''is not true'''?
|type="()"}
- alpha (α) granules contain proteins involved in blood clotting
- delta (δ) granules contain ATP. ADP. serotonin and calcium
- lamda (λ) granules contain hydrolytic enzymes
+ mu (µ) granules contain myeloperoxidase

{In which structure is first site of production of red blood cells in the embryo?
|type="()"}
+ Wall of the yolk sack
- Bone marrow
- Kidney
- Liver

{The best definition of the '''hematocrit''' (HCT) is:
|type="()"}
+ Volume percentage of the blood occupied by formed blood elements
- Mass percentage of the blood occupied by formed blood elements
- Total volume of the blood occupied by formed blood elements
- Total mass of the blood occupied by formed blood elements

{Which anions are the most common in the blood plasma?
|type="()"}
- SO42- a Cl-
- H2PO4- a HSiO4-
+ Cl- a HCO3-
- HCO3- a HSiO4-

{Which cation has the highest concentration in the blood plasma?
|type="()"}
- Ca2+
- Mg2+
+ Na+
- K+

{Which is a diameter of the '''monocyte'''?
|type="()"}
- 6 to 8 μm
- 10 to 12 μm
+ 12 to 20 μm
- 16 to 18 μm

{Which is a diameter of the '''neutrophil'''?
|type="()"}
- 6 to 8 μm
+ 10 to 12 μm
- 12 to 20 μm
- 16 to 18 μm

{What is a '''leukocyte'''?
|type="()"}
- Activated white blood cell
- Quiescent white blood cell
- Immature white blood cell
+ Any white blood cell

{What is main function of '''buffer systems''' in the blood?
|type="()"}
- Blood buffer is curiosity of biophysical chemistry, but it is out of physiological importance
- They are involved in regulation of pH on value related to the actual need of the organism
+ They are involved in regulation of pH on strict value
- There is nothing like buffers inside the blood

{Which hormone or cytokine simulates formation of '''platelets'''?
|type="()"}
+ Trombopoietin
- Erytropoietin
- Interleukin 6
- Vasopresin

{Which hormone or cytokine simulates formation of '''red blood cells'''?
|type="()"}
+ Erytropoietin (Epo)
- Interleukin 1 (IL 1)
- Interleukin 6 (IL 6)
- Vasopresin

{Which hormone or cytokine simulates maturation of '''granulocytes'''?
|type="()"}
- SCF (stem cell factor)
- Interleukin 5 (IL 5)
- Angiotensin
+ GM-CSF

{Which of below mentioned cells '''is not able''' to undergo mitosis?
|type="()"}
+ Orthochromatophilic erythroblast
- Polychromatophilic erythroblast
- Bazophilic erythroblast
- Proerythroblast

{Which of following cells is '''the least differentiated'''?
|type="()"}
- Metamyelocyte
- Promyelocyte
+ Myeloblast
- Myelocyte

{Which of statements below describes '''B lymphocytes''' the best?
|type="()"}
- B lymphocytes has nucleus composed of lobules
+ B lymphocytes are precursors of plasma cells
- B lymphocytes has fagocytic activity
- B lymphocytes produce antibodies

{Which of statements below describes '''T lymphocytes''' the best?
|type="()"}
+ We have different types of T lymphocytes according to their function
- Mature T lymphocytes are released from the bone marrow
- T lymphocytes has nucleus composed of lobules
- T lymphocytes are usually two-nucleated

{Which statement about development of the '''megakaryocyte''' is correct?
|type="()"}
- It is a result of both endomitosis and fusion of precursor cells, but endomitosis dominates
- It is a result of both endomitosis and fusion of precursor cells, but fusion dominates
+ It is a result of endomitotic division of precursor cell
- It is a result of fusion of precursor cells

{Which statement about '''monocytes''' is '''false'''?
|type="()"}
+ Except in very exceptional cases. they have a round nucleus
- They circulate in the peripheral blood few days only
- They can differentiate in macrophages
- They have 15 to 20 μm in diameter

{Which type of tissue serves as a supportive structure for hematopoiesis in the bone marrow?
|type="()"}
- Jelly-like connective tissue
+ Reticular connective tissue
- Elastic connective tissue
- Connective tissue proper

</quiz>

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* List of all tests: [[Histology MCQs]] 
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