BIOLOGY
12th Edition
ISBN: 9781260169614
Author: Raven
Publisher: RENT MCG
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Chapter 52, Problem 1IQ
Summary Introduction
To determine: The effects of the high level of estradiol and progesterone in the absence of pregnancy.
Introduction: Hormones can be defined as a chemical messenger secreted by some glands in the body. These hormones travel in the bloodstream and affect the different processes such as growth, development, and
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Identify 3 effects of progesterone on pregnancy.
Select one or more:
O a.
This causes the uterus to remain contracted after delivery to reduce blood
loss from the placental site
O b.
This is produced when the ovarian follicle that encloses the developing egg
forms a structure called the corpus luteum
O c.
This decreases bladder tone leading to an increased risk of urinary infection
O d.
This prepares the body for pregnancy. It acts as an appetite stimulant
Identify 1 effect of the hormone vasopressin in pregnancy.
Select one:
O a.
This has an important compensatory mechanism for restoring blood pressure
in hypovolaemic shock such as that which occurs during haemorrhage
O b.
Promotes the maintenance of the corpus luteum at the beginning of
pregnancy
O C.
Involved in thickening of the endometrium and other aspects of regulating the
menstrual cycle
Need help
Identify the two agents that stimulate uterine contraction during labor and describe the proposed mechanisms that may initiate labor in humans
Cite your references
Discuss the critical effects of estrogen and progesterone during pregnancy.
Chapter 52 Solutions
BIOLOGY
Ch. 52.1 - Describe the events involved in fertilization.Ch. 52.1 - Prob. 2LOCh. 52.2 - Prob. 1LOCh. 52.2 - Prob. 2LOCh. 52.2 - Prob. 3LOCh. 52.3 - Prob. 1LOCh. 52.3 - Compare gastrulation in different animals.Ch. 52.3 - Name the extraembryonic membranes in amniotes.Ch. 52.4 - Prob. 1LOCh. 52.4 - Prob. 2LO
Ch. 52.4 - Prob. 3LOCh. 52.5 - Prob. 1LOCh. 52.5 - Explain the function of the organizer.Ch. 52.5 - Distinguish between primary and secondary...Ch. 52.6 - Describe the major developmental events in the...Ch. 52.6 - Explain the role of the placenta.Ch. 52.6 - Prob. 3LOCh. 52 - Data analysis Two different genes have mutant...Ch. 52 - Prob. 1IQCh. 52 - Prob. 1UCh. 52 - Which of the following plays the greatest role in...Ch. 52 - Gastrulation is a critical event during...Ch. 52 - Gastrulation in a mammal would be most similar to...Ch. 52 - Prob. 5UCh. 52 - Of the following processes, which occurs last? a....Ch. 52 - Which of the following would qualify as a...Ch. 52 - Prob. 1ACh. 52 - In the Spemann experiment, when the dorsal lip is...Ch. 52 - Suppose that a burst of electromagnetic radiation...Ch. 52 - Prob. 4ACh. 52 - Drug or alcohol exposure during which of the...Ch. 52 - Axis formation in amniotic embryos could be...Ch. 52 - Prob. 1SCh. 52 - You look up from your studying to see your dog,...Ch. 52 - Why doesnt a woman menstruate while she is...Ch. 52 - Spemann and Mangold were able to demonstrate that...
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- What 2 ways can delivery of the placenta be managed during the 3rd stage? Select one or more: a. Conservative management b. Physiological management c. Active managementarrow_forwardDescribe the differences between invasive placental implantation for species such as the cat and humans compared with non-invasive species such as sheep and horses.arrow_forwardSuppose that in the near future, you are a prenatal care provider. In the most recent ultrasound checkup on the expecting mother, you unfortunately found that the fetus is suffering a neural tube defect in the form of anencephaly. Seeing as the mother is still in the 12th week of pregnancy or the 1st trimester, the pregnancy can still be terminated via medical means. How would you explain to the parents the situation they are in?arrow_forward
- Draw two graphs that illustrate the uterine and ovarian cycles. Explain the functions and FSH, LH, estrogen, and progesterone, giving a step-by-step explanation of maturation of a follicle, ovulation, and the corresponding stages of development of the endometrium.arrow_forwardDiscuss the mechanism of action of the oxytocin? How does it facilitates uterine contraction especially to birthing mothers?arrow_forwardGive detail explanation of what pathologies are involved in A woman has been trying for a baby without success. Link the technologies: Hormonal stimulation Intrauterine insemination (IUI) And (in vitro fertilisation)arrow_forward
- In-vitro fertilization occurs in the laboratory. The resulting embryos remain in a laboratory culture for up to six days before being transferred to the potential mother. If fertilization had occurred naturally (i.e., inside the female reproductive system instead of in-vitro), where would the embryo be and what developmental processes would it be undergoing during those first six days of development?arrow_forwarda. Using your diagram, illustrate the fertilization and implantation of the human egg. b. What are the approved contraceptives to prevent pregnancy? List at least 5 and describe or explain each purpose.arrow_forwardIdentify 3 effects of Human Chorionic Gonadotrophin (HCG) in pregnancy. Select one or more: ☐a. This helps to ensure the endometrium is ready to receive the implantation of the embryo b. This is linked to the severity of morning sickness or hyperemesis gravidarum in pregnant women OC. Helps regulate oxytocin receptors in the myometrium O d. Promotes the maintenance of the corpus luteum at the beginning of pregnancyarrow_forward
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