Physiology Quiz 13 05/05/2016 Which of the following is NOT a prenatal period? embryonic fetal infancy pre-embryonic [AdsenseImage] Which of the following implants in, or attaches to, the endometrium of the uterus? fetus secondary oocyte embryo blastocyst Which reaction releases enzymes such as hyaluronidase and acrosin that allow sperm to penetrate the corona radiata of the secondary oocyte? acrosomal reaction capacitation sperm migration cortical reaction Which part of the embryo contributes to the fetal portion of the placenta? hypoblast inner cell mass epiblast trophoblast Which of the following is NOT a function of amniotic fluid? maintains a constant temperature for the developing embryo allows the embryo freedom of movement provides nutrition for the developing embryo protects the embryo from trauma [AdsenseImage] What process starts at the embryonic period? fertilization implantation gastrulation formation of the blastula Which of the following does NOT occur during the embryonic period? organogenesis formation of the placenta implantation gastrulation The differentiation of the germ layers into organs and organ systems is known as: ingression. organogenesis. gastrulation. embryonic folding. What do the umbilical arteries transport? nutrients toward the fetal heart deoxygenated blood away from the fetal heart oxygenated blood away from the fetal heart oxygenated blood toward the fetal heart [AdsenseImage] From what do both lanugo and the vernix caseosa protect the fetus? urine amniotic fluid fat blood What cardiovascular changes are NOT typically expected in a pregnant female? varicose veins increased cardiac output increased blood pressure decreased hematocrit Which fetal hormone initiates labor? progesterone cortisol estrogen prolactin A positive feedback mechanism initiates the rhythmic contractions of labor. Determine the hormones involved in this feedback loop. estrogens and progesterone prostaglandins and oxytocin relaxin and human chorionic gonadotropin (hCG) cortisol and aldosterone [wpp range=”daily” order_by=”views” thumbnail_width=125 thumbnail_height=125 stats_views=0] Which antibodies are found in colostrum? IgG IgA IgD IgM What is the neonatal period? the first four weeks of life the first year of life the first six months of life the first four months of life Which of the following is an inherited trait influenced by multiple alleles? color blindness sickle cell anemia skin color ABO blood types In order for a male to inherit a sex-linked (X-linked) disorder, he must receive the allele from: his mother only. either his mother or father. his father only. both his mother and father. [AdsenseImage] Which of the following fetal vascular shunts bypasses the liver? ligamentum arteriosum ductus arteriosus foramen ovale ductus venosus The best fetal position for birth is the: buttocks-first position. nonvertex position. breech position. vertex position. Breast milk also acts as a mild laxative and helps cleanse meconium, a tarry, green fecal material made up of bile and other wastes that is first excreted by the newborn. True False chicken fried – ringtone – zac brownChipmunk Trollin Amazon For A Hot N Ready Pizza! As an Amazon Associate we earn from qualifying purchases through some links in our articles.