title: The pharyngeal lymphoid tissue of lampreys. A morpho-functional equivalent of the vertebrate thymus?
abstract: PE, pharyngeal epithelium; S, blood sinus; T, connective tissue trabecula; End, endothelial cell; Er, erythrocyte; L, lymphocyte; Lb, lymphoblast; Lm, lymphoblast in mitosis; Ma, macrophage; Ret, reticular cell; col, collagen fibres; db, dense body; g, Golgi apparatus; gr, granules; n, nucleus; nu, nucleolus; m, mitochondria; rer, rough endoplasmic reticulum.
authors.affiliation: Departmento de Biologia Celular, Facultad de Biología, Universidad Complutense, Madrid, Spain.
authors.forename: C F
authors.initials: CF
authors.lastname: Ardavin
authors.forename: A
authors.initials: A
authors.lastname: Zapata
mesh_terms: D000818:Animals; D005399:Fishes / Q000033:anatomy & histology*; D007798:Lampreys / Q000033:anatomy & histology* / Q000502:physiology; D008221:Lymphoid Tissue / Q000033:anatomy & histology* / Q000502:physiology; D010614:Pharynx; D013950:Thymus Gland / Q000033:anatomy & histology / Q000276:immunology