Which sequence correctly traces sperm from production to maturation and then onward through the male reproductive tract?
9 The Reproductive System Online Quiz Questions
Use this free practice quiz with 20 questions to review 9 The Reproductive System, test your knowledge, and prepare for your next test or exam.
A developing ovarian follicle produces sustained high levels of estrogen. Which event is most likely to follow and directly trigger ovulation?
- A
FSH falls, triggering progesterone release from the endometrium.
- B
Progesterone surges, causing the dominant follicle to release an oocyte.
- C
Sustained high estrogen leads to an LH surge, triggering ovulation.
- D
GnRH stops, causing the corpus luteum to release an oocyte.
Which pairing correctly describes the roles of FSH and LH in ovarian function?
- A
FSH supports follicle development; LH helps trigger ovulation and corpus luteum formation.
- B
FSH triggers ovulation; LH supports follicle development.
- C
FSH maintains the endometrium after ovulation; LH produces progesterone in the uterus.
- D
FSH forms the corpus luteum; LH causes menstrual flow.
Which sequence correctly describes early development from fertilization through attachment to the uterine lining?
- A
Blastocyst → zygote → morula → implantation
- B
Zygote → morula → blastocyst → implantation
- C
Morula → blastocyst → implantation → zygote
- D
Zygote → blastocyst → implantation → morula
Select all statements that correctly describe human gametes and the chromosome number restored at fertilization.
- A
Each human gamete has 23 chromosomes.
- B
A human zygote normally has 23 chromosomes.
- C
Fertilization combines the genetic material of two haploid gametes.
- D
The zygote has 46 chromosomes after the two gametes unite.
Select all statements that correctly describe the blastocyst and implantation.
- A
The inner cell group develops into the embryo.
- B
The outer cell layer alone becomes the embryo.
- C
The outer cell layer contributes to supporting structures, including the fetal portion of the placenta.
- D
Implantation involves the blastocyst attaching to and embedding in the endometrium.
A sustained rise in estrogen can lead to an LH surge that triggers ovulation.
- A
True
- B
False
Clinical gestational age is typically about two weeks less than age measured from fertilization.
- A
True
- B
False
In which anatomical structure does fertilization usually occur?
What is the developmental-stage term for the developing human from the ninth week after fertilization until birth?
Sperm form in the seminiferous tubules and then mature in the .
Around the end of the first week after fertilization, a blastocyst may attach to and embed in the uterine .
Compare spermatogenesis and oogenesis by describing when each begins, how meiosis proceeds in each, and how cell contents are divided. Include what must happen for the secondary oocyte to complete meiosis.
If pregnancy does not occur after ovulation, which sequence best explains the start of menstrual flow?
- A
The corpus luteum grows and progesterone rises, causing the endometrium to shed.
- B
The dominant follicle releases another oocyte, which directly causes menstrual flow.
- C
The corpus luteum regresses, hormone levels fall, and the functional endometrial layer is shed.
- D
The endometrium is shed while estrogen and progesterone remain high.
Sperm have just been produced in the seminiferous tubules. Which structure do they enter next to mature and be stored?
- A
Seminiferous tubules
- B
Epididymis
- C
Ductus deferens
- D
Ejaculatory ducts
True or false: Clinical gestational age is typically about two weeks greater than age measured from fertilization.
- A
True
- B
False
If the hypothalamus releases GnRH, which response should follow in the reproductive hormone pathway?
- A
The hypothalamus directly releases FSH and LH.
- B
The pituitary releases GnRH, prompting the hypothalamus to release FSH and LH.
- C
The hypothalamus releases GnRH, prompting the pituitary to release FSH and LH.
- D
The ovaries release GnRH, prompting the pituitary to release FSH and LH.
After ovulation, which structure produces progesterone that makes the endometrium more suitable for implantation?
- A
The corpus luteum produces progesterone, making the endometrium more suitable for implantation.
- B
The dominant follicle produces progesterone, triggering the endometrium to shed.
- C
The endometrium produces progesterone, causing the corpus luteum to form.
- D
The cervix produces progesterone, preparing the oocyte for fertilization.
What is the term for the changes sperm undergo in the reproductive tract that enable them to fertilize an oocyte?
A clinician describes a muscular canal that connects to the cervix, carries menstrual flow out of the body, and can serve as a birth canal. Which structure is being described?