Physiology Quiz 12 May 5, 2016 cashstax Education A parent cell has 28 chromosomes and completes meiosis. How many chromosomes result in each cell produced? 28 chromosomes 56 chromosomes 46 chromosomes 14 chromosomes During what phase are homologous chromosomes separated from one another and pulled toward opposite poles of the cell by spindle fibers? anaphase II metaphase I anaphase I telophase I EARN UP TO 25 dollars per hour [AdsenseImage] What shuffles the alleles and causes homologous chromosomes to no longer be identical during meiosis? synapsis formation of tetrads crossing over cytokinesis How many spermatids result from one spermatogonium? 4 16 8 2 Which of the following is the main hormone that regulates spermatogenesis? inhibin estrogen growth hormone testosterone [AdsenseImage] What is the action of luteinizing hormone (LH)? LH stimulates the secretion of interstitial-cell stimulating hormone (ICSH). LH stimulates the secretion of inhibin. LH stimulates interstitial cells of the testes to produce testosterone. LH stimulates the sustentacular cells of the testes to secrete androgen-binding protein (ABP). A male bodybuilder takes testosterone supplements to increase his muscle mass. After three weeks, which of the following do you expect to observe? Excess testosterone inhibits production of gonadotropin-releasing hormone (GnRH). Excess testosterone inhibits production of growth hormone-releasing hormone (GHRH). Excess testosterone increases production of luteinizing hormone (LH). Excess testosterone increases production of estrogens. A seventy-five year old male has noticed he has had difficulty urinating. His physician says his difficulty is most likely due to an enlarged gland known as the: seminal vesicle. prostate gland. epididymis. bulbourethral gland. In a female, follicle-stimulating hormone (FSH) and luteinizing hormone (LH) target the: uterus. ovaries. hypothalamus. anterior pituitary gland. CHECK THIS OUT Physiology Quiz 6 [AdsenseImage] Ovulation is triggered by a surge in: progesterone. testosterone. inhibin. luteinizing hormone (LH). Which of the following is regulated by a positive feedback mechanism in females? ovulation menstruation implantation fertilization Estrogens are critical for: increased erythrocyte production. adipose tissue deposits in the breasts, hips, and thighs. increased skeletal muscle mass. deepening of the voice. When menstruation has ceased for at least one year, what has occurred? female climacteric, or menopause menarche puberty male climacteric, or andropause [AdsenseImage] What type of birth control may prevent pregnancy by manipulating the hormones and interfering with ovulation? intrauterine device (IUD) behavior method hormonal method barrier method Barrier methods of birth control prevent sperm from moving beyond the vagina and include condoms, diaphragms, cervical caps, and the sponge. True False A female patient complains of a greenish-white discharge from her vagina that has a strong odor. She also experiences itching and burning of her genitals. Determine the sexually transmitted infection (STI) she has. gonorrhea chlamydia syphylis trichomoniasis Which of the following is linked with many cases of cervical cancer? chlamydia human papillomavirus (HPV) gonorrhea trichomoniasis [AdsenseImage] A male visiting a health clinic presents with a pink rash all over the body, a fever, joint pain, and complains of some hair loss. Determine the sexually transmitted infection (STI) this patient has contracted. chlamydia genital herpes syphilis gonorrhea When are all oogonia formed in females? at puberty during infancy before birth early adulthood Which of the following is under control of the parasympathetic nervous system? erection ejaculation emission expulsion [AdsenseImage] CHECK THIS OUT What happened to MYSPACE and where the heck did FACEBOOK come from?!