Fig. 11From: Harderian gland of flying and non-flying birds: morphological, histological, and histochemical studiesLight micrograph of the HG of duck (A), goose (B), ibis (C), and pigeon (D). Secretory acini (Ac), capsule (arrow), blood vessel and capillaries in the capsule and in interstitial tissue (arrow heads), and myoepithelial cell (arrow). Stain, H&EBack to article page