Structure and Functions of Blood Vessels and Vascular Niches in Bone

Figure 2

Vascular microenvironments in bone. Multiple types of perivascular mesenchymal stromal cells are supported by distinct subtypes of vascular structures in the bone marrow microenvironment. Arteriolar niche supports long-term HSCs (LT-HSC) while sinusoidal niche maintains short-term and cycling HSCs (ST-HSCs).