Which of the following sets of tissues are all part of a developing follicle.

Correct Answer: D

Rationale: The correct answer is D because all the tissues mentioned (zona pellucida, cumulus oophorous, theca) are indeed part of a developing follicle. The zona pellucida is the glycoprotein layer surrounding the oocyte, the cumulus oophorous is a cluster of granulosa cells surrounding the oocyte, and the theca is a layer of connective tissue surrounding the follicle. Choice A is incorrect because the corpus luteum is not part of a developing follicle. Choice B is incorrect because the acrosome is a structure in sperm, not the follicle. Choice C is incorrect because the corpus luteum is not part of a developing follicle, and the oocyte is already present within the follicle but is not considered a part of it.

Correct Answer: B

Rationale: The correct answer is B: zygote. After fertilization, when the sperm and egg unite, they form a zygote. This is the initial stage of a new organism's development. Implantation (A) occurs when the embryo attaches to the uterus. Embryo (C) is the term for the developing organism after the zygote stage. Breast (D) is not related to the fertilization process. In this context, zygote is the most appropriate term as it specifically refers to the newly formed cell after fertilization.

Correct Answer: B

Rationale: The correct answer is B: perineorrhaphy. "Perineorrhaphy" refers to the surgical suturing of the perineum. The term is derived from "perineum" (the area between the anus and the genitalia) and "rrhaphy" (meaning suture). A: cervicography - This term refers to a diagnostic procedure involving imaging of the cervix, not related to suturing the perineum. C: cervicorrhapy - This term does not exist in medical terminology and is not related to suturing the perineum. D: cervicorrhexis - This term refers to the tearing of the cervix, not the suturing of the perineum. In summary, perineorrhaphy is the correct term as it specifically refers to suturing the perineum, while the other choices are unrelated to this procedure.

Correct Answer: A

Rationale: The correct answer is A because the arterial vascularization of the testicle is indeed provided by the gonadal artery, which is a branch off the abdominal aorta. This is anatomically accurate as the gonadal artery supplies blood to the testicles. Choice B is incorrect because the venous drainage of the testicle is to the testicular vein, which drains into the inferior vena cava, not the internal iliac vein as stated in option B. Choice C is incorrect because the testicular artery, not the internal iliac artery, is responsible for the arterial supply to the testicle. Choice D is incorrect because the venous drainage of the testicle is not tributary to the inferior vena cava; instead, it drains into the left renal vein.

Correct Answer: A

Rationale: Correct Answer: A Rationale: Spermatogenesis is a complex process involving several stages such as mitosis, meiosis, and maturation. It starts with the division of spermatogonia through mitosis, followed by meiosis I and II to form haploid spermatids. These spermatids then undergo maturation to become spermatozoa. Therefore, spermatogenesis occurs in several stages, making choice A the correct answer. Summary of Incorrect Choices: B: While spermatogenesis does involve meiosis, it includes both meiosis I and II, not just meiosis I. C: Spermatogenesis includes both meiosis I and II, not just meiosis II. D: Spermatogenesis is primarily regulated by hormones such as testosterone and LH, not FSH.