ANS3319Exam3_Fall2010Key

ANS3319Exam3_Fall2010Key - ANS 3319C Reproductive...

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ANS 3319C Reproductive Physiology & Endocrinology in Domestic Animals Exam 3 (100 pts: Nov. 19, 2010) Name: _______________________________ Page 1 of 4 Please match each numbered phrase with the most appropriate answer by placing the letter in the correct blank. Answers can only be used once (1 pt each). 1) K Fluid filled protective sac surrounding fetus. A) eCG 2) N Process of biochemical changes that occur to sperm that infer fertility on sperm. B) Foramen ovale 3) I Carbohydrate that composes ½ of fetal diet during gestation. C) Primitive streak 4) W Reaction that allows sperm cell to digest zona pellucida. D) Diffusion 5) O Germ cell layer that serves as precursor to muscle, bone, & reproductive tract. E) Allantois 6) C Landmark of early developing embryo, which serves as longitudinal axis F) Paramesonephric ducts 7) J Fetal shunt that directs blood away from the fetal lungs to the descending aorta. G) Yolk sac 8) U Germ cell layer that serves as precursor to digestive & respiratory systems. H) Cryptorchidism 9) S Protein that has receptor-like activity and binds sperm cells. I) Glucose 10) D Mechanism by which glucose is transferred across the placenta to the fetus J) Ductus arteriosus 11) E Membrane that carries blood vessels to the outer most placental membrane. K) Amnion 12) V Thought to be the origin of the luteolytic signal in humans. L) Cortical 13) X Carbohydrate stored within amnionic fluid & in plaques located on amnion M) Testis Determining Factor 14) B Name of the shunt between the right and left atrium in the fetal heart. N) Capacitation 15) Q Reproductive structure that serves as both a barrier and reservoir for sperm. O) Mesoderm 16) F Early embryonic ducts that eventually develop into female reproductive tract. P) Extoderm 17) G Extraembryonic membrane that is vestigial in domestic animals. Q) Cervix 18) R Mechanism by which amino acids are transferred across the placenta to fetus R) Active transport 19) M Sexual differentiation is controlled by _______, which is on the Y-chromosome. S) ZP3 20) Y Membrane that attaches to uterus and allows for nutrient/gas exchange. T) Mesonephric duct 21) L Biochemical reaction that initiates the zona block and prevents polyspermy. U) Endoderm 22) T Early embryonic ducts that eventually develop into male reproductive tract. V) Ovary 23) A Hormone that stimulates the development of accessory CL in the mare. W) Acrosomal 24) P Germ cell layer that serves as precursor to CNS, skin, and hair. X) Fructose 25) H Failure of the testicular descent into the scrotum is known as? Y) Chorion
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ANS 3319C Reproductive Physiology & Endocrinology in Domestic Animals Exam 3 (100 pts: Nov. 19, 2010) Name: _______________________________ Page 2 of 4 Short answer and fill-in-the-blank.
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ANS3319Exam3_Fall2010Key - ANS 3319C Reproductive...

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