ANAT 1502 Embryology Practice Exam 1

ANAT 1502 Embryology Practice Exam 1 - Embryology Test #1...

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Embryology Test #1 Study Guide 1) During spermatogenesis, when is the 1 st meiotic division completed in a male? ~Just before ejaculation ~Immediately after entering a mature oocyte ~Just before puberty ~Before birth 2) During wk 2, name the solid layer tissue that surrounds most ~Deciduas reaction ~Inner cytotrophoblast ~Intraembryonic mesoderm ~Extraembryonic mesoderm 3) Where does the primordial blood cells of a 3-wk-old embryo 1 st begin to form? ~On the yolk sac ~Allantois ~In the liver ~Embryonic disc 4) What is the 1 st sign of gasturlation? ~Appearance of primitive elevation ~Appearance of the notocord ~Appearance of the primitive streak ~Disappearance of the primitive streak 5) Freshly ejaculated sperm in NOT capable of fertilizing an oocyte b/c it is? ~Not haploid ~Not capacitated ~Immature ~Morphologically abnormal
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st happen? ~Zona pellucida disappears ~Bilaminar disc appears ~Trophoblast layer differentiates ~Prochordal plate appears 7) Human Chorionic Gonadotrophin helps maintain? ~Corpus luteum ~Corpus albicans ~Cloaca ~Closing plug 8) What are the 2 layers of the bilaminar disc? 9) What is the ame for the embryonic stage w/ inner cell mass and outer cell layer? ~Neurula ~Trophoblast ~Blastocyst ~Morula 10) Which will give rise to the definitive ectoderm, mesoderm ~Trophoblast ~Hypoblast ~Cytotrophoblast ~Epiblast 11)During spermatogenesis, which replicates by mitosis? ~Spermatogonia
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ANAT 1502 Embryology Practice Exam 1 - Embryology Test #1...

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