Fig. 2From: Artificial blood-feeding of phlebotomines (Diptera: Psychodidae: Phlebotominae): is it time to repurpose biological membranes in light of ethical concerns?a, b Photomicrographs of haematoxylin–eosin stained histological sections of the membranes. a Chick skin showing sublayers, b industrially processed pig small intestine showing no tissue differentiation. Scale bar = 50 µm. E Epidermis, D dermis, M/CT muscle/connective tissueBack to article page