Bartleby Sitemap - Textbook Solutions
All Textbook Solutions for Anatomy & Physiology
Progesterone secreted by the placenta suppresses ________ to prevent maturation of ovarian follicles. LH and estrogen hCG and FSH FSH and LH estrogen and hCGWhich of the following is a possible culprit of morning sickness? increased minute respiration decreased intestinal peristalsis decreased aldosterone secretion increased blood volumeHow does the decrease in progesterone at the last weeks of pregnancy help to bling on labor? stimulating FSH production decreasing the levels of estrogens dilating the cervix decreasing the inhibition of uterine contractilityWhich of these fetal presentations is the easiest for vaginal birth? complete breech vertex occiput anterior frank breech vertex occiput posteriorWhich of these shunts exists between the right and left atria? foramen ovale ductus venosus ductus aiteriosis foramen venosusWhy is brown fat important? It is the newborns primary source of insulation. It can be broken down to generate heat for thermoregulation. It can be broken down for energy between feedings. It can be converted to white fat.Constriction of umbilical blood vessels during vaginal birth ________. causes respiratory alkalosis inhibits the respiratory center in the brain elevates carbon dioxide levels in the blood both a and bAlveoli are connected to the lactiferous sinuses by ________. lactocytes lactiferous ducts nipple pores lobulesHow is colostrum most important to a newborn? It helps boost the newborns immune system. It provides much needed fat. It satisfies the newborns thirst. It satisfies the infants appetite.Mature breast milk ________. has more sodium than cows milk has more calcium than cows milk has more protein than cows milk has more fat than cows milkMarfan syndrome is inherited in an autosomal dominant pattern. Which of the following is true? Female offspring are more Likely to be carriers of the disease. Male offspring are more likely to inherit the disease. Male and female offspring have the same likelihood of inheriting the disease. Female offspring are more likely to inherit the disease.In addition to codominance, the ABO blood group antigens are also an example of ________. incomplete dominance X-linked recessive inheritance multiple alleles recessive lethal inheritanceZoe has cystic fibrosis. Which of the following is the most likely explanation? Zoe probably inherited one faulty allele from her father, who is a earner, and one normal allele from her mother. Zoe probably inherited one faulty allele from her mother, who must also have cystic fibrosis, and one normal allele from her father. Zoe must have inherited faulty alleles from both parents, both of whom must also have cystic fibrosis, Zoe must have inherited faulty alleles from both parents, both of whom are earners.Darcy and Raul are having difficulty conceiving a child. Darcy ovulates every 28 days, and Rauls sperm count is normal. If we could observe Rauls sperm about an horn after ejaculation, however, wed see that they appear to be moving only sluggishly. When Rauls sperm eventually encounter Darcys oocyte, they appeal to be incapable of generating an adequate acrosomal reaction. Which process has probably gone wrong?Sherrise is a sexually active college student. On Saturday night, she has unprotected sex with her boyfriend. On Tuesday morning, she experiences the twinge of mid cycle pain that she typically feels when she is ovulating. This makes Sherrise extremely anxious that she might soon learn she is pregnant. Is Sherrises concern valid? Why or why not?Approximately 3 weeks after her last menstrual period, a sexually active woman experiences a brief episode of abdominopelvic cramping and minor bleeding. What might be the explanation?The Food and Nutrition Board of the Institute of Medicine recommends that all women who might become pregnant consume at least 400 g/day of folate horn supplements or fortified foods. Why?What is the physiological benefit of incorporating shunts into the fetal circulatory system?Why would a premature infant requite supplemental oxygen?Devin is 35 weeks pregnant with her first child when she arrives at the birthing unit reporting that she believes she is in labor. She states that she lias been experiencing diffuse, mild contractions for the past few hours. Examination reveals, however, that the plug of mucus blocking her cervix is intact and her cervix has not yet begun to dilate. She is advised to return home. Why?Janine is 41 weeks pregnant with her first child when she arrives at the birthing unit reporting that she believes she has been in labor for days but that its just not going anywhere. During the clinical exam, she experiences a few mild contractions, each lasting about 15-20 seconds; however, her cervix is found to be only 2 cm dilated, and the amniotic sac is intact. Janine is admitted to the birthing unit and an IV infusion of pitocin is started. Why?Describe how the newborns fust breath alters the circulatory pattern.Newborns are at much higher risk for dehydration than adults. Why?Describe the transit of breast milk from lactocytes to nipple pores.A woman who stopped breastfeeding suddenly is experiencing breast engorgement and leakage, just like she did in the first few weeks of breastfeeding. Why?Explain why it was essential that Mendel perform his crosses using a large sample size?How can a female carrier of an X-linked recessive disorder have a daughter who is affected?