Male Reproductive Anatomy Crosswords PDF

**Male Reproductive Anatomy** 2\. Site of sperm production in the testes:\ Seminiferous Tubules 5\. Interstitial cells in the testes that produce testosterone; named after the German anatomist who discovered them:\ Leydig 7\. Paired accessory sex glands responsible for the major liquid portion of...

**Male Reproductive Anatomy** 2\. Site of sperm production in the testes:\ Seminiferous Tubules 5\. Interstitial cells in the testes that produce testosterone; named after the German anatomist who discovered them:\ Leydig 7\. Paired accessory sex glands responsible for the major liquid portion of the final ejaculate:\ Seminal vesicles 1\. Also known as Cowper\'s gland, responsible for producing a pre-ejaculate fluid: Bulbourethral 3\. A network of small veins acting as a countercurrent heat exchanger, cooling blood in adjacent arteries: Pampiniform plexus 9\. Failure of the testes to descend into the scrotum:\ Cryptorchidism 10\. Main function of this organ is sperm maturation:\ Epididymis 12\. Duct transporting sperm from the tail of the epididymis towards the accessory sex glands:\ Vas deferens 4\. Muscle in scrotum that can increase/decrease the surface area to facilitate evaporative cooling:\ Tunica dartos 6\. Produced in the testes, main hormone regulating sexual drive (libido) in males:\ Testosterone 8\. Muscle that moves the testes closer to, or further from, the body to aid thermoregulation:\ Cremaster 11\. The Mediastinum houses these tubules which transport newly formed sperm from the testes to the head of the epididymis: Rete **Sperm Production & Semen Collection** 3\. The third and final stage of spermatogenesis (also called spermiogenesis) Differentiation 5\. The process of differentiation of the spherical undifferentiated spermatid to a fully differentiated spermatozoon during the final stages of spermatogenesis\ Spermiogenesis 7\. Commonly used abbreviation for a computerised method for the analysis of sperm motility\ CASA 9\. Cells present in the testicular interstitial tissue, whose main function is to produce testosterone. Named after the German zoologist who discovered them\ Leydig 10\. Abbreviation for the device used for semen collection in the bull, ram and stallion AV 13\. An undifferentiated male germ cell. Will eventually form a spermatozoon\ Spermatogonium 16\. Testosterone production in testicular Leydig cells is controlled by this hormone\ Luteinising 17\. The part of the brain that secretes Gonadotropin-releasing hormone (GnRH)\ Hypothalamus 1\. The process of cell division during spermatogenesis Spermatocytogenesis 2\. A method of semen collection used for prepubertal animals or when an animal cannot be trained to use an artificial vagina Electroejaculation 4\. Through its action on Sertoli cells, spermatogenesis is controlled by this hormone\ Follicle stimulating hormone 6\. Also known as sustentacular cells and located in the seminiferous tubules in the testes, these cells provide physical, nutritional, and regulatory support for developing sperm cells. Named after the Italian physician who discovered them in 1865\ Sertoli 8\. Collective term for a hormone that stimulates either the ovaries, testes or both. Gonadotropin 11\. The second of the 3 stages of spermatogenesis, lasting 23 days in the bull and resulting in haploid spermatids\ Meiosis 12\. The first of the 3 stages of spermatogenesis, lasting 21 days in the bull\ Proliferation 14\. Deleterious sperm traits that can typically be overcome by increasing sperm number\ Compensable 15\. Used to count cells, including sperm cells during semen assessment Haemocytometer **Artificial Insemination** Across 2. Wrote the first book on Artificial Insemination of Farm Animals in 1945\ Perry 4\. Italian credited with designing the first artificial vagina (for semen collection in the dog)\ Amantea 8\. Head of American Breeders Service (ABS). Credited with developing, in collaboration with Linde, liquid nitrogen containers now used globally for semen and embryo storage\ Prentice 9\. Established AI in Russia in 1900s cattle and sheep\ Ivanov 1\. The Dane who established the world\'s first dairy cooperative in 1936 Sorensen Down 2. Working in Cambridge, discovered the cryprotective properties of glycerol and successfully froze chicken sperm Polge 3\. Founded the French company IMV in 1963 which supplies much of the equipment and consumables used in AI. Also credited with inventing the plastic straws used for semen\ Cassou 5\. Credited with establishing the AM/PM rule for AI (in 1943) Trimberger 6\. Credited with developing an extender (Caprogen) which facilitated the use of fresh semen for AI Shannon 7\. Designed the first artificial vaginas for semen collection in bulls, rams and stallions Milovanov **Female Reproductive Anatomy** 4\. The type of uterus found in marsupials and rabbits Duplex 6\. Produced by ovarian follicles; exerts a negative feedback on FSH secretion Inhibin 7\. Portion of the oviduct nearest the ovary\ Ampulla 9\. Corpus \'?\'; name given to the newly formed corpus luteum Hemorrhagicum 11\. Hormone produced by the corpus luteum on the ovary responsible for maintenance of pregnancy\ Progesterone\ 1. Funnel-shaped structure at the ovarian end of the oviduct which captures the oocyte at ovulation\ Infundibulum 2\. Structure on the ovary containing the oocyte\ Follicle 3\. Finger-like processes on the infundibulum which help capture the oocyte at ovulation\ Fimbriae 5\. The type of uterus found in the cow, ewe and mare Bicornuate 8\. Type of follicle characterised by proliferation of surrounding granulose Secondary 14\. The hormone produced by the uterus responsible for regression of the corpus luteum Prostaglandin 16\. Corpus \'?\'; name given to the old regressed corpus luteum Albicans 17\. Portion of the oviduct nearest the uterus\ Isthmus 18\. Hormone produced by the ovarian follicles; responsible for sex characteristics in female cells and the deposition of the zone pellucida\ Oestradiol 10\. The process of corpus luteum regression Luteolysis 12\. Also called astral follicle due to the presence of a fluid-filled antrum\ Tertiary 13\. Produced by the hypothalamus; stimulates releasing of FSH and LH from Anterior Pituitary\ GnRH 15\. The type of uterus found in primates including humans Simplex **Reproductive cycles** 4\. The main hormone of the luteal phase of the oestrous cycle\ Progesterone 5\. Follicular cells that form Small Luteal Cells after ovulation Theca 7\. The immediate post-ovulation period (from approximately Day 1 to Day 4)\ Metoestrus 1\. Follicular cells that form Large Luteal Cells after ovulation Granulosa 2\. Period of the oestrous cycle from approximately Day 5 to Day 18 corresponding to the luteal phase\ Dioestrus 3\. Having a single oestrus event during a breeding season (e.g., dog, bear) Monoestrus 9\. Having successive oestrous cycles throughout the year/breeding season (e.g., cow, ewe, mare)\ Polyestrus 10\. The ultimate fate of most follicles on the ovary\ Atresia 6\. The main hormone of the follicular phase of the oestrous cycle\ Oestradiol 8\. The period of sexual receptivity in the cow Oestrus **Quiz** 1. Who is credited with first identifying spermatozoa with the microscope - Antonie van Leeuwenhoek   1. Cryptorchids have normal sexual drive (libido) because the... - Endocrine function is not affected   1. Which of the following are involved in thermoregulation in the testes? - All of the above (three)   1. The pampiniform plexus is involved in temperature regulation of the testis and is located in the ? - Spermatic cord   1. The function of the leydig cells is to - Produce testosterone   1. The volume of the atypical ejaculate in the boar is - 200 - 250ml **Phermones** 4\. Having a highly developed he sense of smell (e.g., the dog) Microsmatic 5\. The \'\_\_\_\_\_\_\_\_\_\_Effect\' involves the tendency for female rodents to terminate their pregnancies following exposure to the scent of an unfamiliar male Bruce 8\. Entomologist who first described the activity of male silkworm moths attracted to a female Lintner\ \ 1. Class of pheromones eliciting indirect modifying influence on internal physiological processes of other individuals Primary 2\. The \'\_\_\_\_\_\_\_\_\_Effect\' involves synchronisation of the oestrous cycles of a group of females when a male or his pheromone is introduced (similar to the \'Ram Effect\')\ Whitten 3\. A pheromone released by the female silkworm moth to attract mates Bombykol 9\. The German biochemist who first described the chemical structure of the silkworm pheromone (in 1959)\ Butenandt 10\. Class of pheromones eliciting an behavioural change in the recipient animal. Typically advertises the sex and breeding condition of broadcaster\ Signalling 11\. Behavioural response in male domestic animals in response to pheromones given off by a female in oestrus\ Flehmen 6\. Also called Jacobson's organ. Involved in odour perception for social communication\ Vomernasal 7\. The \'\_\_\_\_\_\_\_\_\_\_\_Effect\' refers to the acceleration of the onset of puberty due to the presence of an unrelated male (similar to the \'Boar Effect\') Vandenbergh **Gamete Transport and Fertilisation** 4\. Site of semen deposition in natural mating and AI in the pig\ Cervix 7\. The stage of meiosis at which the immature oocyte is arrested in the follicle\ Prophase 9\. Term for the physical changes that a sperm undergoes in the female reproductive tract in order to be able to fertilise the oocyte\ Capacitation 1\. A glycosaminoglycan found in high concentrations in the female reproductive tract involved in sperm capacitation Heparin 2\. Abbreviation for the group of cells in the blastocyst go on to form the foetus\ ICM 3\. These cells which line the blastocyst go on to form the metal membranes/placenta Trophoblast 11\. Immature oocytes are at the \'\_\_\_\_\_\_\_\_\_\_\_vesicle\' stage, characterised by a large roundish\ nucleus\ Germinal 14\. Site of semen deposition in AI in the cow Uterus 15\. The progression from Prophase I to Metaphase II of meiosis (which occurs in the follicle in most species) is termed \'Oocyte\_\_\_\_\_\_\_\_\_\_\'\ Maturation 17\. Type of sperm motility characterised by frenzied motion of the flagellum\ Hyperactivation 5\. Site of semen deposition in natural mating in the sheep and cow\ Vagina 6\. The stage of meiosis at which the mature oocyte is ovulated in most domestic species and in humans\ Metaphase 8\. The fusion of the male and female pronucleus at fertilisation\ Syngamy 10\. These granules are located along the periphery of the oocyte membrane and are responsible for blocking polyspermy\ Cortical 12\. In most mammals, polyspermy is blocked by hardening of this structure following penetration by a sperm\ Zona 13\. A preovulatory surge of this hormone approximately 24 h before ovulation is the trigger for oocyte maturation in the follicle\ Luteinising 16\. A membranous organelle located over the anterior part of the sperm nucleus Acrosome **Early Embryogenesis and Maternal Recognition of Pregnancy** 3\. In ruminants, the conceptus-derived signal for MRP is \'\_\_\_\_\_\_\_\_\_\_\_-tau\' Interferon 5\. Structures on the fetal membranes which bind with structures on the endometrium to form placentomes\ Cotyledons 7\. Regression of the corpus luteum on the ovary under the influence of uterine PGF2alpha\ Luteolysis ? 9\. Membrane that encloses foetus in fluid-filled cavity\ Amnion 10\. Classification of placentation in ruminants, pigs and horse based on number of maternal layers retained in the placenta\ Epitheliochorial 12\. The outermost of the fetal membranes which directly contacts the uterine endometrium\ Chorion 13\. Classification of placentation in rodents and primates based on number of maternal layers retained in the placenta\ Hemochorial 15\. The stage of early embryo development at which the first tight junctions appear between adjacent blastomeres\ Morula 16\. Type of placentation in primates\ Discoid 17\. Italian anatomist and surgeon who coined the term \'placenta\' - across\ Colombo 19\. Coined the phrase \'maternal recognition of pregnancy\' in 1969\ Short 20\. As fluid accumulates in the early blastocyst, a cavity known as the \_\_\_\_\_\_\_\_\_\_\_\_ is formed\ Blastocoele 21\. Type of placentation in horses and pigs\ Diffuse 1\. Type of placentation in ruminants\ Cotyledonary 2\. Production of luteolytic pulses of prostaglandin F2alpha is dependent on threshold no. of these receptors that are synthesized by endometrium\ Oxytocin 4\. Type of placentation in cats and dogs\ Zonary 6\. The maternal recognition of pregnancy signal in primates is said to be \_\_\_\_\_\_\_\_\_ because it acts directly on the CL to maintain its function\ Luteotrophic 8\. Classification of placentation in dogs and cats based on number of maternal layers retained in the placenta\ Endotheliochorial 11\. In women, the MRP signal is due to production of \_\_\_\_\_\_\_\_\_\_\_(abbreviation)\ hCG 14\. The conceptus-derived maternal recognition of pregnancy signal in livestock species is said to be\ \_\_\_\_\_\_\_\_\_\_ because it indirectly inhibits the release or production of luteolytic pulses of prostaglandin F2α\ Anti luteolytic 17\. Structures on the endometrium (inner surface of the uterus) which bind with structures on the fetal membranes to form placentomes\ Caruncles 18\. In pigs, the conceptus-derived signal for MRP is \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_. Oestradiol **Sex Determination** 3\. This duct system if a precursor of the female reproductive system\ Mullerian 4\. Nonidentical twins, originating from the fertilisation of two oocytes by two different sperm\ Dizygotic 7\. The gene on the Y chromosome involved in sex determination in males\ SRY 8\. Syndrome where individuals are born with an extra X chromosome (XXY)\ Klinefelter 9\. Term used to describe species having a single offspring\ Monotocous 10\. \'Alfred\_\_\_\_\_\_\_\_\', the father of sex determination\ Jost 12\. Identical twins, originating from the fertilisation of a single oocyte by a single sperm\ Monozygotic 13\. Hormone produced by Sertoli cells in males and granulose cell sin females. Responsible for suppression of the female duct system in males\ AMH 1\. Name given to a female calf born co-twion with a male in which AMH from the male suppresses the development of the female reproductive tract resulting in infertility\ Freemartin 2\. Term applied to children born in the Dominican Republic with a specific type of intersexuality, due to inherited 5α-reductase deficiency\ Guevedoce 5\. Syndrome where individuals are born with the absence of one of the X chromosomes (X0)\ Turners 6\. \'\_\_\_\_\_\_\_\_\_\_\_ Superfecundation\' is the term used to describe the phenomenon where twin calves are born from the dame mother but with different sires\ Heteropaternal 10\. Syndrome where individuals are born with an extra Y chromosome (XYY)\ Jacobs 11\. This duct system if a precursor of the male reproductive system Wolffian