- The pericytes are found in
(1) myelin sheath
(2) surrounding coat of a skeletal muscle fibre,
(3) blood capillary wall
(4) lymph capillary wall
Where Are Pericytes Found?
Pericytes are specialized contractile cells embedded within the basement membrane of blood capillaries and postcapillary venules. They closely wrap around the endothelial cells lining these small vessels throughout the body.
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They are not found in the myelin sheath, surrounding skeletal muscle fibers, or lining lymph capillaries.
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Their prominent location around blood capillaries allows them to interact physically and chemically with endothelial cells.
Functions of Pericytes
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Regulate capillary blood flow via contractile properties.
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Maintain capillary stability and vessel integrity.
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Play a role in angiogenesis by supporting endothelial cell proliferation and migration.
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Contribute to the blood-brain barrier’s maintenance by interacting with endothelial cells, neurons, and astrocytes.
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Participate in immune cell regulation and clearance of cellular debris.
Summary Table
Location Presence of Pericytes Role Myelin sheath No Neural insulation by Schwann cells and oligodendrocytes Surrounding skeletal muscle fibers No Muscle contraction by muscle fibers Blood capillary wall Yes Regulate blood flow and vessel integrity Lymph capillary wall No Specialized for lymph fluid transport and immune surveillance
Conclusion
Pericytes are found in the blood capillary wall.
This location underpins their essential roles in microvascular function and neurovascular unit integrity.Thus, the correct answer is:
(3) Blood capillary wall
Additional Insights
Pericyte dysfunction is implicated in diseases such as diabetic retinopathy, stroke, and neurodegenerative disorders due to their vital role in vascular health and the blood-brain barrier.
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2 Comments
Varsha Tatla
September 16, 2025Pericyte is a basement membrane of blodd capillaries
Aakansha sharma Sharma
September 26, 2025Pericyte is a basement membrane of blodd capillaries