Exam 52: The Reproductive System

In the waiting room of a doctor's office, the staff are creating an educational display about varieties of birth control.What general categories of birth control will they want to outline? _____ drugs that block gonad development __X__ devices to prevent implantation _____ hormones to close cervix __X__ hormones to prevent ovulation _____ hypothalamic implants _____ nasal spray for males __X__ sperm barriers __X__ sperm destruction __X__ surgical sterilization __X__ abstinence

In males, sterilization involves a vasectomy, which removes a portion of what structure?

What completes preparation of uterus for pregnancy?

What caused intense selective pressure for terrestrial vertebrates to evolve internal fertilization?

A patient is complaining of erectile dysfunction.Based on what you know about the physiology of erections, what likely cause will you look for in your workup?

What would be the result for a patient if all his spermatogonia went through meiosis and proceeded to develop into spermatids?

Which of the following determines genetic sex (male or female) in mammals?

Even if utilized properly, what is the least effective means of birth control?

What is the very first hormone your body produced?

At a party, one of your friends has just revealed that he and his wife are trying to conceive.What do you advise him to avoid at the party?

What kind of oocyte is released from the ovary at ovulation?

According to the figure, what is the only hormone that doesn't peak during ovulation?

Where does normal fertilization of an egg by a sperm in a human female occur?

What is an important benefit of using condoms?

Calico cats are female.The patches of fur color result from X inactivation, silencing fur color genes on one X chromosome or the other.However, extremely rarely, there can be a male calico.Describe the genetics necessary for a male calico cat.

Sea turtles are endangered, in part because of human encroachment on the beaches where they lay eggs.You are working with a team to help protect turtle nests and hatchlings from curious beachgoers.Someone suggests putting a fabric dome over each nest to keep people away.What is your response?

In your fertility clinic, you look at the lab results of a young man.He has a prostate gland the size of a golf ball, a fructose-rich semen, and 10 million sperm per ml.His sperm consist of little more than DNA, mitochondria, and a flagellum, with almost no cytoplasm.Also, he has follicle-stimulating hormone (FSH) and luteinizing hormone (LH) in his bloodstream.Which of these is the likely cause of his fertility problems?

What describes placental mammalian embryos?

What stimulates growth of ovarian follicles?

Which of the following statements is true of reptiles?