The straight tubules in the testis lead into the

Correct Answer: D

Rationale: The correct answer is D: Ductus epididymis. The straight tubules in the testis lead into the ductus epididymis because the sperm produced in the testis pass through the straight tubules and enter the epididymis for maturation and storage. This is a crucial step in the sperm development process before they are ready for ejaculation. Rationale: - A: Efferent ducts are incorrect because they connect the rete testis to the epididymis and are responsible for transporting sperm from the testis. - B: Afferent ducts are incorrect as they carry sperm from the rete testis to the epididymis. - C: Rete testis is incorrect as it is a network of tubules where the straight tubules converge and connect to the efferent ducts, not directly to the epididymis.

Correct Answer: B

Rationale: The correct answer is B: Estrogen. Granulosa cells are located in the ovarian follicles and are responsible for producing estrogen, a key female sex hormone. Estrogen plays a crucial role in the menstrual cycle, pregnancy, and development of secondary sexual characteristics. Progesterone is mainly produced by the corpus luteum, testosterone is primarily produced by the testes in males, and aldosterone is synthesized in the adrenal glands. Granulosa cells do not secrete these hormones, making choices A, C, and D incorrect.

Correct Answer: C

Rationale: The correct answer is C: Metrorrhea. Metrorrhea refers to the discharge of pus or mucus from the uterus. Dysmenorrhea (A) is severe menstrual pain, Hypomenorrhea (B) is abnormally light menstrual flow, and Oligomenorrhea (D) is infrequent or light menstrual periods. Therefore, based on the definition provided in the question, Metrorrhea is the correct term for the discharge of pus or mucus from the uterus.

Correct Answer: D

Rationale: The correct answer is D: Perineum. The perineum is the region between the vaginal orifice and anus. It includes the external genitalia and the area surrounding the anus. The peritoneum (A) is a membrane lining the abdominal cavity, not related to this specific region. Cul-de-sac (B) refers to a pouch-like structure in the abdominal or pelvic cavity, not the area specified in the question. Sac (C) is a general term and does not specifically denote the region between the vaginal orifice and anus. Therefore, the correct answer is D as it accurately describes the anatomical location in question.

Correct Answer: C

Rationale: The correct answer is C: Amniotic sac. This structure is often referred to as the "bag of water" because it is a fluid-filled sac that surrounds and protects the developing fetus during pregnancy. The amniotic sac provides cushioning and maintains a stable environment for the fetus to grow. It is essential for the baby's development and acts as a barrier against infections. Choice A: Urinary bladder - This structure is responsible for storing urine and is not typically referred to as the bag of water. Choice B: Gall bladder - This organ stores bile produced by the liver and aids in digestion, not related to pregnancy or fetal development. Choice D: Uterus - While the uterus is involved in pregnancy and fetal development, it is not commonly referred to as the bag of water.