Medical Quiz

Bone Marrow Histology Quiz


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How are red blood cells removed from blood?

A. Turnover

B. Macrophages

C. Migration to the gut and respiratory tract

D. Have long lifespan so just move between tissue and blood


How long can tissue macrophages live?

A. Months to years

B. 8-10 hours

C. Weeks to months

D. 5-10 days


At maturity, the majority of hematopoiesis occurs in the ____________.

A. Bone marrow

B. Liver

C. Spleen

D. Lymph nodes


Which term describes a cell that gives rise to a single, differentiated cell product?

A. Progenitor

B. Stem cell

C. Colony-forming unit

D. Differentiated


True/False: Granulocytes have a shorter lifespan than erythrocytes.

A. TRUE

B. FALSE


Hematopoiesis means:

A. Making new blood cells

B. Consuming blood cells

C. Making new reticular cells

D. Consuming reticular cells


At a later stage in granulopoiesis, does the cytoplasmic to nuclear volume ratio increase or decrease?

A. Increase

B. Decrease


True/False: Stem, progenitor, and colony-forming units are morphologically distinguishable on H&E.

A. TRUE

B. FALSE


True/False: ALL blood cells are derived from hematopoietic stem cells.

A. TRUE

B. FALSE


What is a colony stimulating factor that responds to low oxygen and stimulates red blood cell generation?

A. Granulopoietin

B. Interleukin-2

C. Interleukin-1

D. Erythropoietin


What term refers to the removal of cells from circulation?

A. Confiscation

B. Elimination

C. Withdrawal

D. Clearance


True/False: It can be normal to find plasma cells in bone marrow.

A. FALSE

B. TRUE


Macrophages are formed from __________.

A. Plasma cells

B. T lymphocytes

C. B lymphocytes

D. Monocytes


True/False: Granulocytes take a shorter time to develop than erythrocytes.

A. TRUE

B. FALSE


Where do we find precursors for B and T lymphocytes, respectively?

A. Bone marrow; bone marrow

B. Bone marrow; thymus

C. Thymus; thymus

D. Thymus; bone marrow


Platelets originate from _____________.

A. Reticulocytes

B. Macrophages

C. Megakaryocytes

D. Osteoclasts


True/False: Lymphocytes live longer in tissues than in circulation.

A. TRUE

B. FALSE


What is the first identifiable cell in the erythroid series called? Is it a large or small cell?

A. Proerythroblast; small cell

B. Proerythroblast; large cell

C. Proerythrocyte; large cell

D. Proerythrocyte; small cell


How long can B lymphocytes live?

A. One year

B. 8-10 hours

C. Weeks to months

D. 5-10 days


Bone marrow transitions from ______ to _______ as the animal matures.

A. Yellow to yellow

B. Red to yellow

C. Yellow to red

D. Red to red


True/False: Osteoclasts are fusions of monocytes.

A. TRUE

B. FALSE


Erythropoiesis refers to ____________ formation.

A. Platelet

B. Lymphocyte

C. White blood cell

D. Red blood cell


Lymphopoiesis refers to ___________ formation.

A. Platelet

B. Lymphocyte

C. Monocyte

D. Erythrocyte


True/False: Granulopoiesis is stimulated by colony stimulating factors which are only produced during an inflammatory response to an antigen.

A. TRUE

B. FALSE


Are reticulocytes a biconcave shape?

A. Yes

B. No

C. Maybe

D. Yeah… like I know




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