Human Anatomy and Physiology : Help with Vascular and Lymphatic Injuries and Disorders

Study concepts, example questions & explanations for Human Anatomy and Physiology

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Example Questions

Example Question #11 : Circulatory And Respiratory Systems

Which type of anemia is due to lack of vitamin B12? 

Possible Answers:

hemorrhagic anemia 

iron deficiency anemia 

hemolytic anemia 

aplastic anemia 

pernicious anemia 

Correct answer:

pernicious anemia 

Explanation:

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? 

Possible Answers:

myeloma 

lymphoma 

leukopenia 

leukemia 

hemophilia 

Correct answer:

leukemia 

Explanation:

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. 

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