Within the testes, which coiled tubes contain the cells that produce male gametes?

Male gametes leaving the testis enter which tightly coiled duct where they mature and are stored?

Which passage carries cells from the epididymis into the pelvic cavity toward the ejaculatory duct?

Which paired gland behind the bladder adds fructose-rich fluid that nourishes male gametes?

Which single gland below the bladder surrounds the first part of the urethra and adds alkaline fluid to ejaculate?

Before ejaculation, which paired pea-sized glands release mucus that lubricates and helps neutralize the urethra?

Which external sac holds the testes outside the body cavity to keep gamete-forming tissue cooler than core temperature?

What tube carries semen through the penis to the exterior during ejaculation?

Which paired organ produces oocytes and releases estrogen and progesterone?

Fingerlike projections at the end of the uterine tube sweep an ovulated oocyte inward. What are they called?

An ovulated oocyte normally travels from the ovary toward the uterus through which organ?

Which hollow muscular organ receives the blastocyst and later houses the developing embryo and fetus?

Which uterine layer thickens each cycle and is shed during menstruation if implantation does not occur?

During labor, strong contractions come mainly from which thick smooth muscle layer of the uterus?

The narrow inferior neck of the uterus opens into the vagina. What structure is this?

Which muscular canal extends from the cervix to the exterior and forms the birth canal?

In male gamete formation, one primary cell completing meiosis produces how many functional haploid cells?

In female gamete formation, unequal division of cytoplasm during meiosis usually yields what result?

Early in the cycle, which anterior pituitary hormone drives ovarian structures to mature?

A surge of which anterior pituitary hormone triggers release of the secondary oocyte at midcycle?

After the oocyte is released, the remaining follicular tissue becomes what temporary endocrine structure?

During the luteal phase, which hormone from the temporary ovarian gland maintains the thick uterine lining?

If no implantation occurs, falling ovarian hormone levels cause which event at the start of a new uterine cycle?

In the ovarian cycle, what event occurs immediately after the follicular phase?

When male and female gametes fuse, what single cell is formed first?

Before implantation, which hollow ball of cells reaches the uterus after several cleavage divisions?

A blastocyst normally embeds in which uterine layer to begin pregnancy?

Which organ forms during pregnancy to exchange gases, nutrients, and wastes between maternal and fetal circulation?

What flexible structure contains blood vessels connecting the fetus to the placenta?

Which membrane forms the fluid-filled sac that cushions the fetus?

During which prenatal stage do the major organ systems begin forming, making it especially sensitive to teratogens?

Which hormone increases uterine contractions during labor?

A vaccine given before sexual exposure lowers later risk of cervical cancer by preventing infection with which virus?

Which STI damages helper T cells and can progress to AIDS?

Painful recurrent genital blisters are most closely associated with which infection that can remain latent in nerves?

Which common STI is often silent at first and can lead to pelvic inflammatory disease in females?

Which contraceptive method also lowers risk of many STIs by placing a barrier over the penis during intercourse?

Combination birth-control pills mainly prevent pregnancy by suppressing which event in the ovarian cycle?

Which long-acting reversible contraceptive is placed inside the uterus by a clinician?

A vasectomy prevents male gametes from entering the ejaculate by cutting or sealing which paired ducts?