Nokea
The nurse places a male patient in which position for rectal examination?
- A. Lithotomy position
- B. Prone with the knees fully extended
- C. Bending over the table, with feet everted
- D. Left lateral position with knees and hips flexed
Correct Answer: D
Rationale: The correct answer is D, the left lateral position with knees and hips flexed. This position allows for better visualization and access to the rectal area. The patient's left side is facing up, which helps in maintaining comfort and stability during the examination. Knees and hips flexed further facilitate the examination process.
A: Lithotomy position is used for gynecological exams, not rectal exams.
B: Prone position with knees fully extended does not provide adequate access to the rectal area.
C: Bending over the table with feet everted is not an appropriate position for a rectal examination as it does not allow for proper visualization and access.
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The fleshy outer part of the female reproductive system where the opening to the vagina is located:
- A. Uterus
- B. Ovary
- C. Vulva
- D. vaginitis
Correct Answer: C
Rationale: The correct answer is C: Vulva. The vulva is the fleshy outer part of the female reproductive system that includes the labia majora, labia minora, clitoris, vaginal opening, and urethral opening. It is where the opening to the vagina is located. The uterus (A) is a hollow, muscular organ where the fetus develops during pregnancy. The ovary (B) is the female reproductive organ that produces eggs and hormones. Vaginitis (D) is inflammation or infection of the vagina, not the outer part of the reproductive system. Therefore, the correct answer is C as it accurately describes the external female genitalia where the vaginal opening is situated.
The first polar body appears in the:
- A. primary oocyte just before ovulation
- B. primary oocyte after birth
- C. secondary oocyte after fertilization
- D. primary oocyte before birth
Correct Answer: D
Rationale: The correct answer is D because the first polar body is formed during the first meiotic division of the primary oocyte before birth. The primary oocyte undergoes meiosis I to form the secondary oocyte and the first polar body. This process occurs during fetal development, not after birth.
Choice A is incorrect because the primary oocyte completes meiosis I to form the secondary oocyte and the first polar body before ovulation.
Choice B is incorrect because the primary oocyte forms the first polar body before birth, not after birth.
Choice C is incorrect because the first polar body is formed during meiosis I of the primary oocyte, not after fertilization.
The straight tubules in the testis lead into the
- A. Efferent ducts
- B. Afferent ducts
- C. Rete testis
- D. Ductus epididymis
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.
What is the source of the male sex hormones?
- A. epididymis
- B. vas deferens
- C. seminiferous tubules
- D. interstitial cells
Correct Answer: D
Rationale: The correct answer is D: interstitial cells. Interstitial cells, also known as Leydig cells, are located in the testes and are responsible for producing male sex hormones, primarily testosterone. The other choices, A: epididymis, B: vas deferens, and C: seminiferous tubules, are not directly involved in the production of male sex hormones. The epididymis is a structure for sperm maturation, the vas deferens is a duct for transporting sperm, and the seminiferous tubules are responsible for sperm production through spermatogenesis. Therefore, interstitial cells are the source of male sex hormones, making choice D the correct answer.
Which hormone is primarily produced by the corpus luteum?
- A. Follicl
- B. stimulating hormone (FSH)
- C. Progesterone
- D. Testosterone
Correct Answer: C
Rationale: The correct answer is C: Progesterone. The corpus luteum is a temporary endocrine structure in the ovaries that forms after ovulation. Its main function is to produce progesterone, which helps prepare the uterine lining for implantation of a fertilized egg. Follicle stimulating hormone (FSH) is produced by the pituitary gland to stimulate follicle development, not by the corpus luteum. Testosterone is mainly produced by the testes in males and a small amount by the ovaries in females, not by the corpus luteum. Progesterone is the key hormone produced by the corpus luteum, making choice C the correct answer.