Principles of Biology
2nd Edition
ISBN: 9781259875120
Author: Robert Brooker, Eric P. Widmaier Dr., Linda Graham Dr. Ph.D., Peter Stiling Dr. Ph.D.
Publisher: McGraw-Hill Education
expand_more
expand_more
format_list_bulleted
Question
Chapter 39, Problem 8TY
Summary Introduction
Introduction:
Theovarian cycle explains changes in ovary follicles. The ovarian cycle controls the release of eggs and endocrine tissue preparation. It is also called an endometrial cycle. It occurs from puberty to menopause. It is a cycle of cyclical changes occurring in a woman's reproductive tract with a periodicity of 28 days.
Ovulation is the discharge of eggs from the ovaries into the fallopian tube. It usually happens about 13-15 days before the start of each menses. This takes place when the ovarian follicles get rupture and discharge the secondary oocyte ovarian cells.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solutionStudents have asked these similar questions
Which of the following describes the role of Luteinizing hormone in the ovarian cycle?
o Inhibits the hypothalamus from secreting GNRH
o Directly promotes thickening of the endometrium
o Simulates the ovary to increase aldosterone
o Induces the corpus luteum to secrete progesterone
Stimulates lactation in the mammary glands
Spermatogenesis is cyclic and exhibits spermatogenic wave inside the seminiferous
tubules. Which of the following factor contribute to the spermatogenic cycle/wave?
Retinoic acid signaling in the testis.
AR levels in Sertoli cells.
Activin and inhibin levels within the seminiferous tubule.
Androgen receptor (AR) levels in Leydig and peritubular cells.
Testosterone levels in the lumen of the seminiferous tubules.
Listed in the table below are the five major reproductive hormones that support ovulation in female mammals, including the
giant panda. Describe the role of each hormone in this process and the approximate time during the ovarian cycle that it
reaches peak levels.
Hormone
Gonadotropin-releasing
hormone (GnRH)
Estrogen
Luteinizing
hormone (LH)
Follicle stimulating
hormone (FSH)
Progesterone
Role in Regulation of the Menstrual Cycle Timing of Peak Level
Chapter 39 Solutions
Principles of Biology
Ch. 39.1 - Choose the correct statement. The majority of...Ch. 39.2 - In _________ gametes are released in large numbers...Ch. 39.2 - In which way is gametogenesis similar in males and...Ch. 39.3 - Prob. 1CCCh. 39.3 - Prob. 1TYKCh. 39.3 - Prob. 2TYKCh. 39.4 - Prob. 1BCCh. 39.4 - Prob. 2BCCh. 39.4 - Prob. 1CCCh. 39.4 - Prob. 1TYK
Ch. 39.4 - Prob. 2TYKCh. 39.5 - The three germ layers of triploblasts are...Ch. 39.5 - Choose the correct sequence of events. cleavage...Ch. 39.6 - Under what condition(s) might you expect temporary...Ch. 39.6 - Prob. 2TYKCh. 39 - Prob. 1TYCh. 39 - Prob. 2TYCh. 39 - Spermatogonia are haploid germ cells. d. have...Ch. 39 - Prob. 4TYCh. 39 - Prob. 5TYCh. 39 - Prob. 6TYCh. 39 - A major function of FSH is to stimulate the...Ch. 39 - Prob. 8TYCh. 39 - Prob. 9TYCh. 39 - Cells of the neural crest give rise to the central...Ch. 39 - Prob. 1CCQCh. 39 - Prob. 2CCQCh. 39 - Prob. 3CCQCh. 39 - Describe the major events in animal development...Ch. 39 - Describe the events of the ovarian and uterine...
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, biology and related others by exploring similar questions and additional content below.Similar questions
- Figure 43.17 Which of the following statements about the menstrual cycle is false? Progesterone levels rise during the luteal phase of the ovarian cycle and the secretory phase of the uterine cycle. Menstruation occurs just after LH and FSH levels peak. Menstruation occurs after progesterone levels drop. Estrogen levels rise before ovulation, while progesterone levels rise after.arrow_forwardOutline the roles of follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in the ovarian cycle of a human female.arrow_forwardFigure 18.17 Which of the following statements about hormone regulation of the female reproductive cycle is false? a. LH and FSH are produced in the pituitary, and estrogen and progesterone are produced in the ovaries. b. Estradiol and progesterone secreted from the corpus luteum cause the endometrium to thicken. c. Both progesterone and estrogen are produced by the follicles. d. Secretion of GnRH by the hypothalamus is inhibited by low levels of estrogen but stimulated by high levels of estrogen.arrow_forward
- Ovulation releases _________. a. the corpus luteum b. a primordial follicle c. a primary oocyte d. a secondary oocyte and first polar bodyarrow_forwardDistinguish between: a. seminiferous tubule and vas deferens b. sperm and semen c. Leydig cells and Sertoli cells d. primary oocyte and secondary oocyte e. follicle and corpus luteum f. the three phases of the menstrual cyclearrow_forwardFigure 43.8 Which of the following statements about the male reproductive system is false? The vas deferens carries sperm from the testes to the penis. Sperm mature in seminiferous tubules in the testes. Both the prostate and the bulbourethral glands produce components of the semen. The prostate gland is located in the testes.arrow_forward
- In the fertility awareness method of birth control, a woman gauges her monthly fertile period by monitoring changes in the consistency of her vaginal mucus. What kind of information does such a method provide about the likelihood of getting pregnant?arrow_forwardWhich of the following processes takes place simultaneously during the menstrual cycle? Early follicular development and uterine lining High LH levels and ovulation Maximum LH release and menstruation (bleeding) Reconstruction of the corpus luteum and increased progesterone release from the ovaries Ovulation and menstruationarrow_forwardAlthough the most effective form of an oral contraceptive for woman contain estrogen and progestin, some birth control pills contain a small dose of progestin-only. This is because there are many risks and side effects. Which of the following statements is NOT a reason for using a progestin-only oral contraceptive? Select one: A. progesterone maintains the corpus luteum as corpus luteum release a large amount of progesterone and estrogen. B. progesterone suppresses the maturation of follicles, thereby preventing ovulation of a mature ovum. C. progestin-only oral contraceptives prevent the production of FSH and LH in the anterior pituitary. D. progesterone suppresses the production of GnRH in the hypothalamus.arrow_forward
- Although the most effective forms of oral contraceptive for women contain estrogen and progestin, some birth control pills contain a small dose of progestin only. This is because there are many risks and side effects associated with estrogen.Which of the following statements is NOT a reason for using a progestin-only oral contraceptive? Select one: a. Progesterone suppresses the maturation of follicles, thereby preventing ovulation of a mature ovum. b. Progesterone maintains the corpus luteum as corpus luteum releases a large amount of progesterone and some estrogen. c. Progestin-only oral contraceptives prevent the production of FSH and LH in the anterior pituitary. d. Progesterone suppresses the production of GnRH in the hypothalamus.arrow_forwardWhich of the following causes the bleeding (menstruation) during the menstrual cycle? Reduced release of oxytocin which causes the uterine muscles to relax Increased release of estrogen (estradiol) from the ovaries that simulates the uterine muscles to contract Reduced release of progesterone from the ovaries Increased release of progesterone leading to blood clotsarrow_forwardWhich of the following is NOT true during ovulation? - estrogen is at its highest peak - FSH is at its highest peak - LH is at its highest peak - progesterone is at its highest peak Please choose one from the choices.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Biology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxConcepts of BiologyBiologyISBN:9781938168116Author:Samantha Fowler, Rebecca Roush, James WisePublisher:OpenStax CollegeHuman Physiology: From Cells to Systems (MindTap ...BiologyISBN:9781285866932Author:Lauralee SherwoodPublisher:Cengage Learning
- Nutrition Through The Life CycleHealth & NutritionISBN:9781337919333Author:Brown, Judith E.Publisher:Cengage Learning,Biology (MindTap Course List)BiologyISBN:9781337392938Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. BergPublisher:Cengage LearningHuman Biology (MindTap Course List)BiologyISBN:9781305112100Author:Cecie Starr, Beverly McMillanPublisher:Cengage Learning
Biology 2e
Biology
ISBN:9781947172517
Author:Matthew Douglas, Jung Choi, Mary Ann Clark
Publisher:OpenStax
Concepts of Biology
Biology
ISBN:9781938168116
Author:Samantha Fowler, Rebecca Roush, James Wise
Publisher:OpenStax College
Human Physiology: From Cells to Systems (MindTap ...
Biology
ISBN:9781285866932
Author:Lauralee Sherwood
Publisher:Cengage Learning
Nutrition Through The Life Cycle
Health & Nutrition
ISBN:9781337919333
Author:Brown, Judith E.
Publisher:Cengage Learning,
Biology (MindTap Course List)
Biology
ISBN:9781337392938
Author:Eldra Solomon, Charles Martin, Diana W. Martin, Linda R. Berg
Publisher:Cengage Learning
Human Biology (MindTap Course List)
Biology
ISBN:9781305112100
Author:Cecie Starr, Beverly McMillan
Publisher:Cengage Learning
Great Glands - Your Endocrine System: CrashCourse Biology #33; Author: CrashCourse;https://www.youtube.com/watch?v=WVrlHH14q3o;License: Standard Youtube License