All Human Anatomy and Physiology Resources
Example Questions
Example Question #11 : Circulatory And Respiratory Systems
Which type of anemia is due to lack of vitamin B12?
hemorrhagic anemia
iron deficiency anemia
hemolytic anemia
aplastic anemia
pernicious anemia
pernicious anemia
Pernicious anemia is the type of anemia that is caused by lack of vitamin B12. Hemorrhagic anemia is caused by loss of blood. Iron deficiency anemia is caused by low hemoglobin and/or small red blood cells. Hemolytic anemia can result from hemolytic disease of the newborn. Aplastic anemia is when the bone marrow looses its capacity to produce red blood cells.
Example Question #12 : Circulatory And Respiratory Systems
Which of the following disorders is caused by a cancerous mutation of cells in the bone marrow that produce white blood cells?
myeloma
lymphoma
leukopenia
leukemia
hemophilia
leukemia
There are various types of leukemia, all which are caused by a cancerous mutation in the cells of the bone marrow that are producing white blood cells. This causes white cells in circulation to be non functional, yet continue to grow and divide. Myeloma is a type of cancer that also begins in the bone marrow, but affects plasma cells. Lymphoma is a blood cancer of the lymphocytes. Hemophilia is a hereditary bleeding disorder that results from the lack of a clotting factor. Leukopenia is when the bone marrow stops producing white blood cells, causing the body to be more susceptible to infection.