Animal Reproduction and Development Crossword Puzzle

QUESTIONS LIST:

• ligand : a substance that binds to another substance to form a complex
• cryptorchidism : one or both testicles fail to descend into the scrotum
• anestrus : without estrus, no cycling
• neurohormone : a hormone synthesized and secreted by neurons
• constrictor vulvae : smooth muscles keep the vulva together
• pheromone : a volatile chemical secreted externally that is recognized by the olfactory system
• hilus : where blood, lymph, and nerves enter the ovarian medulla
• duplex : 2 uterine horns, 2 cervixes
• ovoviviparity : eggs hatch in body and live young are born.
• ectoderm : outermost germ layer
• spermiogenesis : differentiation of spermatids into mature spermatozoa
• alveolus : the functional unit of the mammary gland
• tunic : a membranous structure lining a cavity, or covering an organ
• sertoli cells : support, protect and nourish spermatogenic cells
• parthenogenesis : reproduction from egg without fertilization
• caruncles : form maternal part of placenta (mainly in ruminants)
• pituitary : surrounded by the sphenoid bone and lies in the sella turcica
• scrotum : house testes externally, temperature regulation