ANS3319CEmbryogenesis_Notes_Final_Topic14

ANS3319CEmbryogenesis_Notes_Final_Topic14 - ANS 3319C...

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Unformatted text preview: ANS 3319C Reproductive Physiology and Endocrinology Embryogenesis 129 Embryogenesis: Male and Female Reproductive Systems 1) Embryogenesis : formation of the early developing embryo Differentiation : groups of unspecialized cells develop into functional, recognizable groups of cells with specific functions (dermal layers) Germ Layers (Table 4-1) Table 4-1. Embryo origin of various organs and systems from the embryonic germ layers Ectoderm Mesoderm Endoderm Skin, hair, nails, sweat glands, mammary glands Muscle Digestive system (including liver & pancreas) Hypothalamus, pituitary Blood vessels Respiratory system Oral cavity Reproductive system Most glands Nasal cavity Gonads (male & female) Reproductive tract Uterus, cervix, part of vagina Portions of vagina, vestibule Epididymis, ductus deferens Penis, clitoris Urinary system Skeletal system Mesoderm Ectoderm Endoderm ANS 3319C Reproductive Physiology and Endocrinology Embryogenesis 130 ANS 3319C Reproductive Physiology and Endocrinology Embryogenesis 131 ANS 3319C Reproductive Physiology and Endocrinology Embryogenesis 132 2) Sexual differentiation of reproductive tract Fertilization: sperm determines gender Oocyte: X chromosome Sperm: X (female) or Y (male) Female XX & Male XY Primordial germ cell migration (Fig 4-4) _________________________________________________________ _________________________________________________________ ______________________________________________________ (+) development of primitive sex chords from connective tissue Medial to embryonic kidneys Fetal renal system development (concurrent with repro system)...
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ANS3319CEmbryogenesis_Notes_Final_Topic14 - ANS 3319C...

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