Which of the following cell types is responsible for the production of granulocyte-colony stimulating factor (G-CSF) in the bone marrow?

A Osteoclasts
B Adipocytes
C Fibroblasts ✓
D Endothelial cells

Explanation

Fibroblasts in the bone marrow produce G-CSF, which stimulates the production of granulocytes, such as neutrophils.

Source

Abbas Basic Immunology
Hematology Hematology: Hematopoiesis Hematology: Hematopoiesis Hard MEDICAL Confidence: medium