Understanding Myeloproliferative Disorders

What does the term 'myelo' refer to in myeloproliferative disorders?

• Blood vessels

• Spleen

• Bone marrow

• Liver

What is the role of pluripotent hematopoietic stem cells?

• They produce only red blood cells.

• They are responsible for bone growth.

• They are involved in muscle repair.

• They can differentiate into all types of blood cells.

Which type of cell is not produced from the myeloid stem cell pathway?

• Platelets

• B cells

• Neutrophils

• Erythrocytes

What is the consequence of a defect in receptor tyrosine kinase?

• Increased bone density

• Decreased blood cell production

• Reduced immune response

• Uncontrolled cell division

Which disorder is associated with a defect in the myeloblast lineage?

• Essential thrombocythemia

• Chronic myelogenous leukemia

• Primary myelofibrosis

• Polycythemia vera

What does 'thrombocyte' refer to?

• Red blood cells

• White blood cells

• Stem cells

• Platelets

What is a potential outcome of primary myelofibrosis?

• Reduced liver size

• Increased bone density

• Fibrosis in the bone marrow

• Decreased blood cell production

What is the term for an enlarged liver due to myeloproliferative disorders?

• Cardiomegaly

• Osteomegaly

• Hepatomegaly

• Splenomegaly

Which disorder is least likely to lead to acute leukemia?

• Essential thrombocythemia

• Chronic myelogenous leukemia

• Polycythemia vera

• Primary myelofibrosis

What is the effect of myeloid metaplasia on organs like the liver and spleen?

• They become more rigid.

• They stop producing blood cells.

• They shrink in size.

• They enlarge due to increased blood cell production.