SCIN 132 WEEK 6 QUIZ.

Part 1 of 8 - 9.0/ 18.0 Points Question 1 of 32 The primary hormones produced by the ovaries are . 3.0/ 3.0 Points A. Prolactin B. Estrogen C. Testosterone D. FSH and LH E. Progesterone Feedback: Good work; your answer is correct! Question 2 of 32 Cushing’s disease is a disorder caused by . 3.0/ 3.0 Points A. abnormally low levels of aldosterone B. abnormally low levels of cortisol C. abnormally high levels of aldosterone D. abnormally high levels of epinephrine E. abnormally high levels of cortisol Feedback: Good work; your answer is correct! Question 3 of 32 The parathyroid glands are small structures located on the posterior thyroid gland that produce parathyroid hormone (PTH), which regulates blood levels. 3.0/ 3.0 Points A. potassium B. calcium C. insulin D. adrenalin E. thyroid hormone Feedback: Good work; your answer is correct! Question 4 of 32 The hormones of the human body can be divided into which of the following major group(s)? 0.0/ 3.0 Points A. Sex hormones B. CNS hormones C. Hormones derived from amino acids D. Hormones derived from lipids E. C and D above are correct. Feedback: The hormones of the human body can be divided into two major groups on the basis of their chemical structure. Hormones derived from amino acids include amines, peptides, and proteins. Those derived from lipids include steroids. Question 5 of 32 The gonads produce what class of hormones? 0.0/ 3.0 Points A. catecholamines B. neurotransmitters C. amine hormones D. peptide hormones E. steroid hormones Feedback: Gonads produce steroid hormones like estrogen and testosterone. Question 6 of 32 Hormones produced and released from sex organs include which of the following? 0.0/ 3.0 Points A. estrogen and progesterone B. testosterone C. inhibin Power D. FSH and LH by E. A, B, and C are all correct Feedback: FSH and LH are produced by the pituitary gland. Part 2 of 8 - 6.0/ 15.0 Points Question 7 of 32 All of the following statements concerning oogenesis are correct EXCEPT: 3.0/ 3.0 Points A. Ova develop from stem cells called oogonia. B. Upon fertilization, a secondary oocyte completes meiosis II C. Oogenesis occurs from puberty until death. D. At birth, a female infant’s ovaries contain primary oocytes. E. One oogonium produces one and only one ovum Feedback: Good work; your answer is correct! Question 8 of 32 If the average length of a woman’s ovarian cycle is 30 days, the average length of her uterine cycles is most likely days. 0.0/ 3.0 Points A. 10 B. 21 C. 7 D. 15 E. 30 Feedback: Anterior pituitary hormones (FSH and LH) cause the cyclical release of estrogen and progesterone by the ovaries every 28 days (with variations between women). Ovarian hormones cause uterine cycle endometrial changes. Thus, ovarian and uterine cycles are coordinated and last about the same number of days in a particular woman. Question 9 of 32 After ovulation, the secondary oocyte is drawn from the peritoneal cavity into the uterine tube by . 0.0/ 3.0 Points A. microvilli B. mucous C. flagella D. fimbriae E. cilia Feedback: The long, fingerlike fimbriae are projections on the ends of the uterine tubes which wave rhythmically and sweep the secondary oocyte and peritoneal fluid into the uterine tube. Question 10 of 32 Which layer of the uterus is shed during menstruation? 0.0/ 3.0 Points A. myometrium B. basilar zone of endometrium C. functional zone of endometrium D. serous membrane E. perimetrium Feedback: If fertilization does not occur, progesterone levels decline as the corpus luteum degenerates, causing the innermost layer of the uterus, a mucous membrane called the functional layer of the endometrium, to die and be shed with blood as menstrual flow. Question 11 of 32 During the second half of the ovarian cycle, progesterone is secreted by the . 3.0/ 3.0 Points A. corpus luteum B. mons pubis C. primary follicle D. anterior pituitary gland E. posterior pituitary gland Feedback: Good work; your answer is correct! Part 3 of 8 - 15.0/ 18.0 Points Question 12 of 32 “False labor” or Braxton Hicks contractions are weak, irregular contractions of the myometrium triggered by . 3.0/ 3.0 Points A. low levels of oxytocin B. high levels of prostaglandin C. low levels of progesterone D. high blood levels of estrogen E. high levels of testosterone Feedback: Good work; your answer is correct! Question 13 of 32 How is a zygote transported to the uterus? 3.0 / 3.0 Points A. the uterine tube is lined with cilia and undergoes peristalsis B. gravity C. the zygote migrates by ameboid movement D. the zygote has a flagellum E. the uterine tube is lined with microvilli Feedback: Good work; your answer is correct! Question 14 of 32 Which part of a mature sperm contains enzymes which digest the coverings surrounding the ovulated oocyte? 3.0 / 3.0 Points A. acrosome B. nucleus