Nokea
Which structure is composed of three cylindrical masses of erectile tissue each surrounded by a fibrous tissue?
- A. Testes
- B. Prostate
- C. Bladder
- D. Penis
Correct Answer: D
Rationale: The correct answer is D: Penis. The penis is composed of three cylindrical masses of erectile tissue (two corpora cavernosa and one corpus spongiosum) surrounded by fibrous tissue. The corpora cavernosa fill with blood during an erection, leading to rigidity. The other choices (A: Testes, B: Prostate, C: Bladder) do not fit the description of being composed of three cylindrical masses of erectile tissue surrounded by fibrous tissue. The testes are responsible for sperm production, the prostate is a gland that produces semen, and the bladder is a hollow muscular organ for storing urine.
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A client is undergoing sentinel lymph node mapping. A nurse explains that this new technique reduces the likelihood of which
- A. Lymphedema
- B. Excessive scarring
- C. Cellulitis
- D. None of the above
Correct Answer: A
Rationale: Sentinel lymph node mapping helps reduce the risk of lymphedema by limiting the number of lymph nodes removed.
A 22 year old male presents in your clinic, c/o pain in his testicle and penis. The pain began last night and has steadily become worse. He hurts when he urinates. He has not attempted intercourse since the pain began. He has tried Tylenol and Ibuprofen without improvement. Denies fever or night sweats. He has had 4 previous sexual partners and has had a new partner for the last month. She is using oral contraceptives and they do not use a condom. On exam, you see a young man lying on his side, mildly ill. His temp is 100.2. There are no visible lesions on the penis, or discharge from the meatus. The scrotum appears normal. Palpation of the testes reveals severe tenderness at the superior pole of the normal-sized left testicle. He also has tenderness when you palpate the structures superior to the testicle through the scrotal wall. The right testicle is unremarkable. An examining finger is placed through each inguinal ring without bulges noted with bearing down. Urine analysis shows WBCs and bacteria. What diagnosis of the male genitalia is most likely?
- A. Acute orchitis
- B. Acute epididymitis
- C. Torsion of the spermatic cord
- D. Prostatitis
Correct Answer: B
Rationale: The correct answer is B: Acute epididymitis. The patient's symptoms of pain in the testicle and penis, worsened pain with urination, and presence of WBCs and bacteria in the urine analysis are indicative of an infection. The severe tenderness at the superior pole of the left testicle and tenderness on palpation of structures superior to the testicle through the scrotal wall suggest involvement of the epididymis. The risk factors of multiple sexual partners and recent unprotected intercourse also support the diagnosis of epididymitis, which is commonly caused by sexually transmitted infections. Acute orchitis (choice A) typically presents with swelling and tenderness of the entire testicle, not just the epididymis. Torsion of the spermatic cord (choice C) presents with sudden onset severe testicular pain and may have a high-riding testicle. Prostatitis (choice D) presents with symptoms related to the prostate gland, such as pelvic
Women infected with human papilloma virus (HPV) are at risk for which of the following?
- A. Uterine fibroids
- B. Cervical cancer
- C. Ovarian cysts
- D. Hemorrhagic
Correct Answer: B
Rationale: HPV infection is a significant risk factor for developing cervical cancer.
Which of the following is an example of ovoviviparity?
- A. Honeybees lay soft eggs within the hive
- B. Sharks hatch from shell-covered fertilized eggs within the female's body.
- C. Birds hatch from shell covered fertilized eggs laid within a nest.
- D. Fetal mammals obtain nourishment from the mother through a placent
Correct Answer: C
Rationale: Ovoviviparity is a reproductive strategy where fertilized eggs develop within the female's body but are not nourished by the mother. Choice C is correct because birds lay fertilized eggs within a nest where they hatch, indicating the eggs were developed internally. Choice A is incorrect as honeybees do not exhibit ovoviviparity. Choice B is incorrect as sharks exhibit viviparity, where embryos develop inside the mother but are nourished directly. Choice D is incorrect as it describes placental nourishment in mammals, which is not characteristic of ovoviviparity.
Which structure provides a temporary
- A. seminal gland storage site for immature sperm?
- B. tunica albuginea
- C. ductus deferens
- D. ductus deferens
Correct Answer: A
Rationale: The correct answer is A, seminal gland, which provides a temporary storage site for immature sperm. Seminal glands are responsible for producing seminal fluid which nourishes and protects the sperm. The immature sperm are stored in the seminal gland until they mature. The other choices, B tunica albuginea, is a tough layer surrounding the testes, not involved in sperm storage. C ductus deferens is a tube that transports mature sperm from the epididymis to the urethra, not for storage of immature sperm. D is a duplicate of C, so it is incorrect.