Bone marrow

This tutorial explores the microscopic anatomy, function, and significance of bone marrow. It covers the location, structure, and organization of bone marrow into three zones, as well as the characteristics of red and yellow bone marrow. The video also discusses the various cells found in bone marrow, including erythrocytes, macrophages, and megakaryocytes, and their roles in blood cell production. Additionally, it highlights the medical applications of bone marrow, such as stem cell therapy and leukemia diagnosis. The tutorial concludes with a summary of the key points covered.

What is the primary function of bone marrow in adults?

• To produce blood cells

• To store calcium

• To support muscle attachment

• To protect internal organs

Which structure provides support to the bone marrow?

• Cortical bone

• Endosteum

• Bony trabeculae

• Periosteum

Which zone of bone marrow contains erythroid islands?

• Periosteal zone

• Endosteal zone

• Intermediate zone

• Central zone

What is the main site of hematopoiesis in infants?

• Flat bones

• Red bone marrow

• Long bone shafts

• Yellow bone marrow

Which cells are responsible for the formation of platelets?

• Erythrocytes

• Megakaryocytes

• Leukocytes

• Adipocytes

What is the primary role of yellow bone marrow?

• Calcium storage

• Immune response

• Energy storage

• Blood cell production

Which hormone is released by adipocytes in yellow bone marrow?

• Erythropoietin

• Thrombopoietin

• Leptin

• Insulin

What is the purpose of bone marrow aspiration?

• To treat osteoporosis

• To enhance muscle growth

• To diagnose leukemia

• To increase bone density

Which part of the bone is typically used for bone marrow extraction?

• Tibia

• Femur

• Iliac crest

• Humerus

What type of cells can be used for musculoskeletal repair?

• Adipocytes

• Leukocytes

• Mesenchymal stem cells

• Erythrocytes