Regarding spermatogenesis, we can state the following:

Correct Answer: C

Rationale: The correct answer is C because spermatogenesis occurs within the convoluted seminiferous tubules of the testes. This is where sperm cells are produced through a series of cell divisions and maturation processes. Choice A is incorrect as spermatogenesis does not occur at the level of testicular interstitial cells, which are responsible for hormone production. Choice B is also incorrect as Leydig cells are responsible for testosterone production, not sperm production. Choice D is incorrect as spermatogenesis actually begins during puberty, typically around the age of 12-13, not specifically at the age of 14.

Correct Answer: D

Rationale: The correct answer is D because the spermatozoon contains the Y sex chromosome, determining male characteristics. Sperm cells are haploid and carry only one set of chromosomes, including either an X or Y sex chromosome. The presence of the Y chromosome leads to the development of male offspring. Choice A is incorrect as sperm cells do not contain somatic chromosomes. Choice B is incorrect as sperm cells contain one pair of sex chromosomes, not just one. Choice C is incorrect because sperm cells can carry either the X or Y sex chromosome, not specifically the X chromosome.

Correct Answer: A

Rationale: The correct answer is A: the uterus. The ovary connects to the uterus via ligaments called ovarian ligaments. This connection is essential for the transfer of eggs from the ovary to the uterus during the menstrual cycle and for providing support to the ovary. The other choices are incorrect as the ovary does not directly connect to the Fallopian tubes (B), rectum (C), or pelvic walls (D) via ligaments. The connection to the uterus is crucial for reproductive functions and maintaining the structural integrity of the female reproductive system.

Correct Answer: A

Rationale: The correct answer is A because Fallopian tubes are indeed funnel-shaped, with edges flared towards the uterus. This shape helps capture the released egg from the ovary and guide it towards the uterus for potential fertilization. The other choices are incorrect because the medial extremity does not display flares (B), the Fallopian tube is not directly linked to the uterus through the uterine ostium (C), and the lateral extremity does not open in the abdominal cavity (D). Therefore, choice A is the most accurate description of the Fallopian tubes based on their anatomy and function.

Correct Answer: C

Rationale: Step-by-step rationale: 1. The mammary gland is not an erectile organ, eliminating choice A. 2. It is not part of the internal genital organs, ruling out choice B. 3. The mammary gland is indeed an accessory gland of the female reproductive system, making choice C correct. 4. Lastly, the mammary gland is a pair of organs, which supports choice D as incorrect. Therefore, choice C is correct as the mammary gland functions as an accessory gland in the female reproductive system.