Category Nuances for extracellular_matrix:

• insoluble,
• physiological,
• charged,
• biological,
• intracellular,
• polymeric,
• cellular,
• inhibitory,
• rigid,
• extracellular,
• critical,
• underlying,
• relevant,

Simple Categories for extracellular_matrix:

• space,
• material,
• component,
• substrate,
• constituent,
• substance,
• surface,
• tissue,
• structure,
• location,
• fluid,