MBLEx Massage Therapy Exam — All Questions

In a healthy adult, where does most red blood cell production (hematopoiesis) take place?

• a.In the liver
• b.In red bone marrow✓
• c.In the spleen only
• d.In the lymph nodes

In adults, red bone marrow found in bones such as the sternum, pelvis, and vertebrae is the primary site of red blood cell production. The liver and spleen are major sites during fetal development but not the principal producers after birth.

What is the functional filtering unit of the kidney?

• a.The alveolus
• b.The sarcomere
• c.The nephron✓
• d.The villus

The nephron is the microscopic functional unit of the kidney where blood is filtered and urine is formed. Each kidney contains roughly a million nephrons, each consisting of a renal corpuscle and a renal tubule.