Nokea
Where does fertilization normally take place?
- A. Uterus
- B. Cervix
- C. Ovary
- D. Ampulla of the fallopian tubes
Correct Answer: D
Rationale: The correct answer is D: Ampulla of the fallopian tubes. Fertilization typically occurs in the ampulla of the fallopian tubes, where the sperm meets the egg. The ampulla is the widest part of the fallopian tube, providing the necessary space for fertilization to occur. Sperm must travel through the cervix and uterus to reach the fallopian tubes where fertilization takes place. The ovary is where the egg is released during ovulation but fertilization occurs in the fallopian tubes.
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A patient complains of dysuria, yellow-green vaginal discharge, and vulvar itching. The nurse suspects which sexually transmitted disease?
- A. Syphilis
- B. Gonorrhea
- C. Genital warts
- D. Chlamydia
Correct Answer: B
Rationale: The correct answer is B: Gonorrhea. Dysuria, yellow-green discharge, and vulvar itching are classic symptoms of gonorrhea. The causative agent, Neisseria gonorrhoeae, infects the genital tract. Syphilis (A) presents with painless sores, not discharge. Genital warts (C) are caused by human papillomavirus and present as warts, not discharge. Chlamydia (D) can cause similar symptoms, but the characteristic discharge in this case points more towards gonorrhea.
During a physical examination of the male reproductive system, how does the nurse assist the examiner to gather clues about the density of scrotal tissue?
- A. Through a digital rectal examination
- B. By externally inspecting the size of the scrotum
- C. Through transillumination
- D. Through a scrotal radiography
Correct Answer: C
Rationale: Transillumination helps assess the density and presence of fluid in the scrotum.
The end of the vas deferens is a dilated sac called the _____.
- A. ductus deferens
- B. seminal vesicle
- C. ampulla
- D. ejaculatory duct
Correct Answer: C
Rationale: The correct answer is C: ampulla. The ampulla is a dilated portion at the end of the vas deferens where it joins with the duct of the seminal vesicle to form the ejaculatory duct. This structure serves as a storage and mixing area for sperm and seminal fluid before ejaculation. The other choices, A: ductus deferens, is another name for the vas deferens itself; B: seminal vesicle is a gland that produces seminal fluid but is not the dilated sac at the end of the vas deferens; D: ejaculatory duct is formed by the union of the vas deferens and the duct of the seminal vesicle, it is not the dilated sac itself.
________ vertebrae are the strongest and largest of the vertebral column.
- A. Lumbar
- B. Sacrum
- C. Thoracic
- D. Cervical
Correct Answer: A
Rationale: The correct answer is A: Lumbar vertebrae. The lumbar vertebrae are the largest and strongest of the vertebral column due to their weight-bearing function in supporting the upper body. They have a larger body and thicker structures compared to other vertebrae, providing stability and support. The sacrum, thoracic, and cervical vertebrae are not as large or strong as the lumbar vertebrae, as they have different functions and shapes tailored to their specific roles in the spine.
Which of the following changes would be expected to occur with increased binding of a hormone to plasma proteins?
- A. Increase in plasma clearance of the hormone
- B. Decrease in half-life of the hormone
- C. Increase in hormone activity
- D. Increase in degree of negative feedback exerted by the hormone
Correct Answer: D
Rationale: Step 1: Increased binding of a hormone to plasma proteins reduces the concentration of free hormone in the blood.
Step 2: With decreased free hormone levels, there is less hormone available to exert its effects.
Step 3: This reduction in free hormone would lead to an increase in the degree of negative feedback exerted by the hormone to regulate its own production.
Therefore, the correct answer is D.
Summary:
A: Increase in plasma clearance of the hormone - Incorrect. Increased binding to plasma proteins would decrease clearance.
B: Decrease in half-life of the hormone - Incorrect. Increased binding can prolong the half-life by protecting the hormone from degradation.
C: Increase in hormone activity - Incorrect. Increased binding reduces the availability of free hormone, decreasing its activity.