Nokea
The inner part of the intervertebral disc is called the:
- A. Nucleus fibrosus
- B. Annulus fibrosus
- C. Nucleus pulposus
- D. Annulus pulposus
Correct Answer: C
Rationale: The correct answer is C: Nucleus pulposus. The nucleus pulposus is the inner gel-like core of the intervertebral disc that provides cushioning and flexibility. It consists of water, proteoglycans, and cells. The annulus fibrosus (choice B) is the outer ring of tough fibrous tissue surrounding the nucleus pulposus. Nucleus fibrosus (choice A) and Annulus pulposus (choice D) are not anatomically correct terms and do not describe the inner part of the intervertebral disc.
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The greater vestibular glands are also called _____ glands.
- A. Bartholin
- B. Cowper
- C. Skene
- D. Huntington
Correct Answer: A
Rationale: The greater vestibular glands are also known as Bartholin's glands.
What is the primary function of the endometrial layer of the uterus?
- A. Increase in density and content during each menstrual cycle
- B. Prepare to receive and nourish a fertilized ovum (blastocyst)
- C. Produce the hormones that regulate ovulation
- D. Maintain pregnancy
Correct Answer: B
Rationale: The correct answer is B: Prepare to receive and nourish a fertilized ovum (blastocyst). The primary function of the endometrial layer of the uterus is to provide a suitable environment for implantation and nourishment of a fertilized egg. During the menstrual cycle, the endometrial layer thickens in preparation for potential pregnancy. If fertilization occurs, the blastocyst implants into the endometrium for further development. Choices A, C, and D are incorrect as the endometrial layer does not primarily function to increase in density during each cycle, produce ovulation-regulating hormones, or maintain pregnancy, respectively.
Which treatment option minimizes the development of lymphedema in the surgical management of a patient with breast cancer?
- A. Radical mastectomy procedure
- B. Radiation therapy
- C. Sentinel lymph node mapping
- D. Ultrasound
Correct Answer: C
Rationale: The correct answer is C: Sentinel lymph node mapping. This procedure helps identify and remove only the lymph nodes most likely to contain cancer cells, reducing the risk of lymphedema. A: Radical mastectomy is an extensive surgery that may increase the risk of lymphedema. B: Radiation therapy can also contribute to lymphedema. D: Ultrasound is not a treatment option for minimizing lymphedema in breast cancer surgery. Therefore, C is the best choice for minimizing the development of lymphedema.
A woman who is charting her basal temperature during her cycle notes a sudden increase of 0.6°F in her waking temperature on the 15th day of her menstrual cycle. Which hormone is the cause of this finding?
- A. FSH
- B. Progesterone
- C. Estrogen
- D. Prostaglandin
Correct Answer: B
Rationale: The correct answer is B: Progesterone. On the 15th day of the menstrual cycle, the woman would have ovulated, leading to the release of the egg and the formation of the corpus luteum. The corpus luteum produces progesterone, which causes an increase in basal body temperature. FSH (A) is responsible for stimulating the growth of ovarian follicles, not the temperature increase. Estrogen (C) levels peak before ovulation but do not cause the post-ovulation temperature rise. Prostaglandin (D) is involved in various physiological processes but not directly related to the basal temperature increase post-ovulation.
Which patient is most likely to develop osteoporosis?
- A. A 50-year-old patient on estrogen therapy
- B. A 55-year-old patient with a sedentary lifestyle
- C. A 65-year-old patient who walks 2 miles each day
- D. A 60-year-old patient who takes supplemental calcium
Correct Answer: B
Rationale: The correct answer is B. Osteoporosis is more common in individuals with sedentary lifestyles due to decreased bone density from lack of weight-bearing exercise. Choice A on estrogen therapy may have lower risk. Choice C, who exercises, has a reduced risk. Choice D with calcium intake may help prevent osteoporosis but not as effective as weight-bearing exercise.