EBK HUMAN BIOLOGY
11th Edition
ISBN: 9780100545939
Author: MCMILLAN
Publisher: YUZU
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Chapter 16, Problem 3CT
Premenstrual syndrome (PMS) can include mood swings, fluid retention (edema), anxiety, backache and joint pain, food cravings, and other symptoms. PMS usually develops after ovulation and lasts until just before or just after menstruation begins. Although the precise cause of PMS is unknown, it seems clearly related to the cyclic production of ovarian hormones. After reviewing Figure 16.3, suggest which hormonal changes may trigger PMS.
Figure 16.3 Animated! Hormones govern the menstrual and ovarian cycles. A GnRH from the hypothalamus stimulates the anterior pituitary to secrete FSH and LH. B FSH and LH stimulate a follicle to grow, an oocyte to mature, and the ovaries to secrete progesterone and estrogens that stimulate the endometrium to rebuild. C A midcycle LH surge triggers ovulation and the formation of a corpus luteum. D Progesterone and some estrogens released by the corpus luteum maintain the endometrium, but if no pregnancy occurs, they stop being released and the corpus luteum breaks down. (© Cengage Learning)
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Students have asked these similar questions
Teratomas in the pituitary glands are very rare tumours that occur in children and young adults. Usual symptoms of teratoma are diabetes insipidus, neurological issues, and a reduction in pituitary hormones.Which of the following correctly describes the symptoms of a 10-year-old girl with a teratoma tumour in the pituitary gland?
Select one:
a. Increased levels of ADH and stimulation of the development of secondary sexual characteristics
b. Decreased levels of ADH and inhibition of the development of secondary sexual characteristics
c. Decreased levels of FSH and stimulation of the development of secondary sexual characteristics
d. Increased levels of FSH and inhibition of the development of secondary sexual characteristics
1a) State the organ of origin of the following hormones and the function for: GnRH, FSH, LH, Estrogen, and Progesterone.
1b) The menstrual cycle contains both positive and negative feedback loops. Explain how. Please frame your answer using the “monitor -> control centre -> effector” scheme.
Progesterone:
1) Is produced in adult testes and is responsible for genital development, beard growth, muscle development, and sexual drive
2) Is produced by the placenta during pregnancy, with highest levels seen at conception and then steadily decreasing to non-detectable levels at term
3) Is lowest is serum during the luteal phase of the menstrual cycle and highest during the follicular phase
4) Parallels activity of the corpus luteum by rapidly increasing following ovulation and then abruptly falling to initial low concentrations prior to the onset of menstruation
no references, just homework.
Chapter 16 Solutions
EBK HUMAN BIOLOGY
Ch. 16 - Distinguish between: a. seminiferous tubule and...Ch. 16 - Which hormones influence the development of sperm?Ch. 16 - Which hormones influence the menstrual and ovarian...Ch. 16 - List four events that are triggered by the surge...Ch. 16 - What changes occur in the endometrium during the...Ch. 16 - Label the parts of the female reproductive system...Ch. 16 - Label the parts of the male reproductive system...Ch. 16 - Which oocyte stage is ovulated? What happens to it...Ch. 16 - Besides producing gametes (sperm and eggs), the...Ch. 16 - _____ production is continuous from puberty onward...
Ch. 16 - The secretion of _____ controls the formation of...Ch. 16 - During the menstrual cycle, a midcycle surge of...Ch. 16 - Ovulation releases _________. a. the corpus luteum...Ch. 16 - Which is the correct order for one turn of the...Ch. 16 - In order for sexual intercourse to produce a...Ch. 16 - Fertilization _____. a. unites the nuclei of a...Ch. 16 - Fertility specialists may advise a couple who wish...Ch. 16 - In the fertility awareness method of birth...Ch. 16 - Premenstrual syndrome (PMS) can include mood...Ch. 16 - Prob. 4CTCh. 16 - Prob. 5CT
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