PERSPECTIVES Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ Related posts: REGULATION OF THE GROWTH HORMONE RECEPTOR AND BINDING PROTEIN GONADOTROPE ADENOMAS OF THE PITUITARY PROLACTIN HYPERSECRETION DEFINITIONS…
SPONTANEOUS ABORTION Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ The most common manifestation of the failure of embryonic and fetal development is spontaneous abortion: the failure of…
POSTIMPLANTATION DEVELOPMENT Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ Development after implantation is rapid and complex. The embryo must establish both its placental compartment and its definitive…
IMPLANTATION Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ The embryo now undergoes implantation, which begins with attachment of the late blastocyst to the uterine tissue at a…
X CHROMOSOME INACTIVATION Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ In eutherian females (placental mammals, i.e., other than monotremes and marsupials), one of the two X chromosomes…
OVIDUCT TRANSPORT Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ The role of oviduct transport in the maturation of the mammalian embryo is poorly understood. It is reasonable…
PREIMPLANTATION DEVELOPMENT Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ The preimplantation period of development in mammals, the time from conception to nidation (implantation), has variable lengths in…
SPERM CAPACITATION AND FERTILIZATION Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ The relatively thick and rigid structure that invests the mammalian egg, called the zona pellucida, has…
OOCYTE MATURATION Part of “CHAPTER 107 – CONCEPTION, IMPLANTATION, AND EARLY DEVELOPMENT“ Oocyte maturation in mammals proceeds from the development of a differentiated gonadal ridge in the fetus. For example,…
PATHOPHYSIOLOGY Part of “CHAPTER 106 – MORPHOLOGY OF THE NORMAL BREAST, ITS HORMONAL CONTROL, AND PATHOPHYSIOLOGY“ Any disorder of the breast is viewed by the patient with alarm. Although, with…
