Nokea
The female genitive ducts include the following structures:
- A. uterus;
- B. vulva;
- C. vagina;
- D. ovary
Correct Answer: D
Rationale: The correct answer is D: ovary. The female genitive ducts refer to the structures involved in the production, transport, and release of eggs. The ovary is the primary organ responsible for producing eggs. The uterus, vulva, and vagina are not directly involved in egg production but rather in the reception, nurturing, and passage of the egg. Therefore, the ovary is the correct choice as it is a key structure in the female reproductive system responsible for egg production.
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The outer serosal layer of the uterus is the _____.
- A. perimetrium
- B. cervix
- C. endometrium
- D. myometrium
Correct Answer: A
Rationale: The correct answer is A: perimetrium. The perimetrium is the outer serosal layer of the uterus, providing protection and support. The other choices are incorrect: B. cervix is the lower portion of the uterus, C. endometrium is the inner lining where implantation occurs, and D. myometrium is the middle muscular layer of the uterus. The perimetrium is the outermost layer, making it the correct choice.
Prophase I of the spermatocyte phase lasts approximately:
- A. 2 hours
- B. 24 hours
- C. 2 days
- D. 16 days
Correct Answer: D
Rationale: The correct answer is D (16 days) because prophase I of spermatocyte phase involves complex processes like chromosome pairing and recombination, which take time. It is a crucial stage in sperm formation. Choices A, B, and C are incorrect as they underestimate the duration required for these intricate cellular events to occur. A shorter timeframe would not allow for proper genetic exchange and segregation, essential for genetic diversity in offspring. Thus, a longer duration like 16 days is necessary for the completion of prophase I in spermatocyte phase.
After a rectal examination of a patient with obstructive jaundice, the nurse expects the stool to be what color?
- A. Tan
- B. Pale yellow
- C. Black
- D. Bright red
Correct Answer: A
Rationale: The correct answer is A: Tan. In obstructive jaundice, there is a blockage in the bile ducts, leading to reduced bile flow into the intestines. As a result, stool color changes to tan or clay-colored due to the absence of bile pigments. Pale yellow is incorrect as it suggests some bile flow. Black stool indicates upper gastrointestinal bleeding. Bright red stool indicates lower gastrointestinal bleeding.
Which of the following describes oviparity?
- A. Offspring are fully developed at birth.
- B. Young mammals obtain nourishment from mother's placenta
- C. Embryos that continue developing outside their mother's body.
- D. Frogs that hatch from shell-covered fertilized eggs within female's body.
Correct Answer: D
Rationale: Oviparity refers to the reproductive mode where organisms lay eggs that hatch outside the body. Choice D is correct as it describes frogs hatching from shell-covered fertilized eggs within the female's body. This is because frogs lay eggs externally after fertilization, and the eggs hatch into tadpoles outside the female's body. Choices A and B are incorrect as they describe viviparity, where offspring are fully developed at birth and young mammals obtain nourishment from the mother's placenta, respectively. Choice C is incorrect as it describes ovoviviparity, where embryos develop inside eggs within the mother's body but are born live.
Where is the majority of progesterone produced?
- A. Graafian follicle
- B. corpus luteum
- C. secondary follicle
- D. adrenal cortex
Correct Answer: B
Rationale: The correct answer is B: corpus luteum. Progesterone is primarily produced by the corpus luteum, which forms from the ruptured ovarian follicle after ovulation. The corpus luteum secretes progesterone to prepare the uterus for potential implantation of a fertilized egg. The Graafian follicle (choice A) is a mature ovarian follicle that contains the egg, but it does not produce progesterone. The secondary follicle (choice C) is an immature ovarian follicle and does not produce progesterone. The adrenal cortex (choice D) is responsible for producing other hormones like cortisol and aldosterone, not progesterone.