stirrup pores

knowledge base : exist
structure : inner wall
Stipules : isn't included in the term
Carcass perforations: inner wall (IW) : Pores
Type of carcass pores (IW) : Simple
Relationship between rows of carcass pores and intersept (IW) : Stirrup pores
Relationship between rows of carcass pores and tabulae (IW) : isn't included in the term
Building of carcass perforations (IW) : isn't included in the term
Carcass external plates: inner carcass wall (IW) : None (external plates and/or inner wall)
Type of morphological tubes (IW) : None
Additional sheath : isn't included in the term