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Animal Reproduction and Development

Across
A substance that binds to another substance to form a complex
One or both testicles fail to descend into the scrotum
Without estrus, no cycling
A hormone synthesized and secreted by neurons
Smooth muscles keep the vulva together
Closest to the testes, covers tunica albuginea and testes
A volatile chemical secreted externally that is recognized by the olfactory system
Where blood, lymph, and nerves enter the ovarian medulla
2 uterine horns, 2 cervixes
Eggs hatch in body and live young are born.
Outermost germ layer
Down
Cannot be converted to estrogen
Differentiation of spermatids into mature spermatozoa
The functional unit of the mammary gland
A membranous structure lining a cavity, or covering an organ
Support, protect and nourish spermatogenic cells
Reproduction from egg without fertilization
Form maternal part of placenta (mainly in ruminants)
Surrounded by the sphenoid bone and lies in the Sella Turcica
House testes externally, temperature regulation