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Figure 1 | Reproductive Biology and Endocrinology

Figure 1

From: The interleukin 1 (IL-1) system in the uteroplacental complex of a cartilaginous fish, the smoothhound shark, Mustelus canis

Figure 1

(A) Gross view of gravid uterus of M. canis containing a single term fetus. Uterus (ut), umbilical cord (uc), yolk sac placenta (ysp), oviducal gland (og). (B) Light micrograph of the uteroplacental interface. Uterine vessels (v1), uterine epithelium (e), tertiary egg envelope (ee), yolk sac ectodermal epithelium (ec), yolk sac vessels (v2), endoderm of yolk sac (en). Haematoxylin and eosin. (C) Paraplacental uterine site. Columnar epithelial cells (e) with basal mucous (m) component in association vessels (v). Haematoxylin and eosin.

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