Exam 27: Reproduction and Embryonic Development

-Which structure may swell and cause increased frequency of urination due to common medical problems in older men?

Which event occurs first during embryonic development?

-In which part of the human female reproductive system would sterilization be performed?

Another term for gestation is

A pregnant woman goes to her obstetrician for her first ultrasound. After the exam is over, the doctor remarks, "It looks like the ribs are still developing, and I might even have seen some tiny fingers and toes." How many weeks pregnant is this woman?

-From which part of this figure will the nervous system develop?

Menstruation

-Which part of this figure depicting a gastrula is the mesoderm?

Which structure produces a thick fluid containing fructose, which is used for energy by sperm?

Which outcome would be the most likely if androgen receptors on cells in the hypothalamus and anterior pituitary suddenly could not bind androgen?

-What part in the figure below will develop into the placenta?

Which statement comparing spermatogenesis and oogenesis is true?

If a patient was not having menstrual periods, medical intervention might bring about the shedding of the endometrium by

Which hormone stimulates growth of an ovarian follicle?

Home pregnancy test kits work by detecting the presence of a hormone in a woman's urine. Recently developed test kits include an indicator of how long the woman has been pregnant (1-2, 2-3, or 3+ weeks). The presence of ________ would indicate that a woman is pregnant, and ________ levels of this hormone would indicate that she is farther along in her pregnancy.

In a study of patients seeking assisted reproductive technology, researchers examined the level of FSH in each patient as well as the average number of oocytes they were able to retrieve. Here is an approximation of the data. Older than 33 but Older than 38 but Younger than 33 younger than 37 younger than 41 Older than 41 FSH levels paseline =100\% 112\% 117\% 122\% Oocytes retrieved 8.8 7.5 4.7 3.2 Source: Adapted from Barad, D. H., Weghofer, A., and Gleicher, N. (2007). Age-specific levels for basal follicle-stimulating hormone assessment of ovarian function. Obstetrics & Gynecology, 109(6): 1404-1410. -Why would researchers working with assisted reproductive technology be particularly interested in levels of FSH as opposed to other hormones?

You are observing a developing embryo under a microscope and see that it has a space in the middle of the endoderm, but no features of a notochord are present. In which stage of development is this embryo?

At the end of gastrulation, the ectoderm makes up the

In a study of patients seeking assisted reproductive technology, researchers examined the level of FSH in each patient as well as the average number of oocytes they were able to retrieve. Here is an approximation of the data. Older than 33 but Older than 38 but Younger than 33 younger than 37 younger than 41 Older than 41 FSH levels paseline =100\% 112\% 117\% 122\% Oocytes retrieved 8.8 7.5 4.7 3.2 Source: Adapted from Barad, D. H., Weghofer, A., and Gleicher, N. (2007). Age-specific levels for basal follicle-stimulating hormone assessment of ovarian function. Obstetrics & Gynecology, 109(6): 1404-1410. -What explanation might there be for the relationship between number of oocytes and the levels of FSH?

Which option correctly lists the sequence in which most animals develop?