Nokea
Mrs. Smith has been doing the arm and hand exercises you showed her until this morning when her husband told her he thought it was too dangerous. The most appropriate nursing action would be to
- A. refer Mr. Smith to the physician
- B. explain the importance of postmastectomy exercises and let him assist Mrs. Smith
- C. ask Mrs. Smith to exercise before and after her husband's visits
- D. take Mr. Smith to the physical therapy department to observe some patients with severe contractures
Correct Answer: B
Rationale: Educating the husband and allowing him to assist ensures continued compliance with necessary exercises.
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The purpose of the urethra is to
- A. carry only urine
- B. carry only semen
- C. carry a mixture of semen and urine
- D. carry both semen and urine but not at the same time
Correct Answer: D
Rationale: The correct answer is D. The urethra is a tube that carries both urine from the bladder and semen from the reproductive system. This is essential for the excretion of waste (urine) and reproduction (semen). Choice A is incorrect because the urethra carries both urine and semen. Choice B is incorrect as the urethra carries both substances, not just semen. Choice C is incorrect because the urethra carries semen and urine separately, not as a mixture. Overall, choice D is correct because the urethra can carry both semen and urine, just not simultaneously.
Which hormone initiates and sustains labor contractions?
- A. estrogen
- B. HCG
- C. relaxin
- D. oxytocin
Correct Answer: D
Rationale: The correct answer is D: oxytocin. Oxytocin is the hormone responsible for initiating and sustaining labor contractions by stimulating the uterine muscles. It acts on the smooth muscle cells of the uterus to increase contractions. Estrogen (A) plays a role in preparing the uterus for labor but doesn't initiate contractions. HCG (B) is a hormone produced during pregnancy but is not directly involved in labor. Relaxin (C) helps relax the pelvic ligaments to facilitate childbirth, but it doesn't initiate contractions.
The rete testis interposes between:
- A. the convoluted seminiferous tubules;
- B. the epididymal duct;
- C. the straight tubules;
- D. the efferent ducts;
Correct Answer: D
Rationale: The rete testis interposes between the seminiferous tubules and the efferent ducts in the male reproductive system. The correct answer is D because the rete testis acts as a connection between the seminiferous tubules where sperm is produced and the efferent ducts that transport the sperm out of the testes. The other choices (A, B, and C) are incorrect because they do not accurately describe the anatomical relationship between the rete testis and the structures mentioned.
The vascularization of the ovary is provided by the:
- A. the gonadal artery, of the abdominal aorta;
- B. the ovarian branch of the uterine artery;
- C. the ovarian artery, of the external iliac artery;
- D. the Fallopian artery;
Correct Answer: B
Rationale: The correct answer is B: the ovarian branch of the uterine artery. The ovary receives its blood supply primarily from the ovarian artery, which arises from the abdominal aorta. However, the ovarian artery is a short vessel that anastomoses with the uterine artery, providing the main vascularization of the ovary. The other choices are incorrect because: A) the gonadal artery arises from the internal iliac artery, not the abdominal aorta; C) the ovarian artery does not arise from the external iliac artery; D) there is no specific Fallopian artery responsible for ovarian vascularization.
What effect does luteinizing hormone (LH) have on a female?
- A. LH promotes enlargement of the female's breasts.
- B. LH has no effect on a female
- C. LH causes secondary sex characteristics to develop in a femal
- D. LH triggers ovulation in a female
Correct Answer: D
Rationale: The correct answer is D: LH triggers ovulation in a female. LH is a hormone released by the pituitary gland that stimulates the release of an egg from the ovary during the menstrual cycle. This process is known as ovulation. It is a crucial step in the reproductive cycle of females.
A: LH does not promote the enlargement of female breasts. Breast growth is primarily regulated by estrogen and progesterone.
B: LH does have a significant effect on females, particularly in the reproductive system.
C: While LH does contribute to the development of secondary sex characteristics in females, its main role is in triggering ovulation.