Pearson eText Biology: Science for Life with Physiology -- Instant Access (Pearson+)
6th Edition
ISBN: 9780135214114
Author: Colleen Belk, Virginia Maier
Publisher: PEARSON+
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Chapter 23, Problem 10LTB
Summary Introduction
Introduction:
At the time of childbirth (delivery), the uterine muscle contract strongly and rhythmically to move the baby through the cervix and vagina is known as labor. This process is controlled by the hormone. The hormone oxytocin (a pituitary hormone) plays an essential role in uterine muscle contraction.
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Students have asked these similar questions
Which hormone has both inhibiting and releasing action?
Prolactin
Somatostatin
Somatotropin
Gonadotropin
Often, two hormones have opposite (antagonistic) effects on the same target organs. For example, oxytocin stimulates labor contractions, and progesterone inhibits premature labor.Name some other examples of antagonistic effects among the hormones?
Which of the following hormones controls the release of pituitary sex hormones?
LH - luteinizing hormone
FSH - follicle stimulating hormone
GNRH - gonadotropin releasing hormone
Testosterone
Chapter 23 Solutions
Pearson eText Biology: Science for Life with Physiology -- Instant Access (Pearson+)
Ch. 23 - Why can two cells with the same DNA have different...Ch. 23 - Prob. 2LTBCh. 23 - Add labels to the figure that follows, which...Ch. 23 - Prob. 4LTBCh. 23 - Prob. 5LTBCh. 23 - Prob. 6LTBCh. 23 - Which hormone helps prepare the uterus for...Ch. 23 - Prob. 8LTBCh. 23 - Prob. 9LTBCh. 23 - Prob. 10LTB
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- Which hormone causes FSH and LH to be released? a. testosterone b. estrogen c. GnRH d. progesteronearrow_forwardMatch each hormone with its effect. oxytocin a. growth of facial hair testosterone b. uterus contracts LH c. LH, FSH are released GnRH d. surge causes ovulation FSH e. follicle develops HCG f. milk is produced prolactin g. corpus luteum is maintainedarrow_forwardHow is the release of oxytocin from the posterior pituitary gland during labor is an example of positive feedback mechanism?arrow_forward
- estrogen is produced by: hypothalamus, anterior pituitary, the egg, the uterus, or the follicles.?arrow_forwardWhat hormone should be given to a mother to induce labor if it has not started naturally or can be used to strengthen contractions to aid childbirth? * prostaglandin O prolactin O vasopressin O oxytocinarrow_forwardName the pituitary hormone responsible for the following action: stimulates ovarian follicle to secrete estrogen and egg developmentarrow_forward
- Name one female sex hormone which is maintained at high levels throughout pregnancy. State two important functions of the hormone in pregnant women.arrow_forwardAccording to this diagram, why does the release of estradiol/inhibin stimulate a negative feedback loop on the anterior ptuitary gland? Isn't the anterior ptuitary gland negatively effected only when estradiol is low, and not high?arrow_forwardShannon, a 28-year old has been in the first stage of labor for 15 hours. Her uterine contractions are weak and her labor is not progressing normally: Shannon and her doctor desire a vaginal delivery, so the physician order a Pitocin be infused. What is the effect of this hormone?arrow_forward
- Match four of the hormones of the negative feedback numbered above with their function given below. Function: Hormone: Stimulates the release of testosterone Answer Inhibits the release of FSH Answer Stimulates spermatogenesis Answer Stimulates the development of secondary sex characteristics Answer;arrow_forwardThere is considerable advertising directed at men in their 50s and older suggesting that they can reverse the effects of aging by taking supplemental testosterone ( "maybe you have low T!") . Surprisingly, their doctors often comply with requests for supplemental testosterone with little or no testing to find out if their levels are actually abnormal. It turns out abnormally low testosterone levels are fairly rare in men, so not surprisingly, most men derive little benefit from the supplements. Often these patients, when they don't get the desired results, being guys, think increasing their dosage by 3 or 4 times would be better. What would be the effects of increasing the testosterone dosage on the following hormone levels? A. Low FSH; high GnRH, LH and estradiol B. Low LH, FSH and estradiol; high GnRH C. Low GnRH, FSH, and LH; high estradiol D. Low GnRH and LH; high FSH and estradiol E. Low estradiol; high GnRH, FSH and LHarrow_forward#6arrow_forward
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