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The apical surface of the uterine epithelial cells is covered with microvilli that are under hormonal control and vary in length and number with the oestrous cycle and during pregnancy. A hormonally dependent glycocalyx is found outside the microvilli [ 2 ] while the center of the microvilli consists of an actin filament core which is embedded ...
Micrograph showing navicular cell in extremely high magnification. Navicular cell is a boat-shaped benign epithelial cell seen in Pap smear. [1] They are seen in pregnancy (most prominently during smears taken in the second trimester), [2] second half of menstrual cycle, during menopause and in women using medroxyprogesterone acetate (depo-provera) for contraception.
[7] [8] The amnion is characterised by cuboidal and columnar epithelial layers. [7] The columnar cells are located in the vicinity of the placenta, whereas the cuboidal cells are found in the periphery. [7] During early pregnancy, the amnionic epithelium is sparsely covered in microvilli, which increase in number throughout pregnancy. [4]
An endometrial thickness (EMT) of less than 7 mm decreases the pregnancy rate in in vitro fertilization by an odds ratio of approximately 0.4 compared to an EMT of over 7 mm. However, such low thickness rarely occurs, and any routine use of this parameter is regarded as not justified.
At 5 weeks, the embryo is a mass of cells with a developing neural tube (pre-spinal cord and brain). The forming fetus is no larger than a grain of rice.” Pregnancy tissue after an abortion at 5 ...
System Tissue Epithelium Subtype; circulatory: blood vessels: Simple squamous: endothelium: digestive: ducts of submandibular glands: simple columnar - digestive ...
Adequate nutrition is needed for a healthy fetus. Mothers who gain less than 20 pounds during pregnancy are at increased risk for having a preterm or low birth weight infant. [51] Iron and iodine are especially important during prenatal development. Mothers who are deficient in iron are at risk for having a preterm or low birth weight infant. [52]
These are simple columnar epithelial cells whose nuclei appear at different heights, giving the misleading (hence "pseudo") impression that the epithelium is stratified when the cells are viewed in cross section. Ciliated pseudostratified epithelial cells have cilia. Cilia are capable of energy-dependent pulsatile beating in a certain direction ...