Nokea
Where do the testes originate in a fetus?
- A. scrotal sac
- B. pelvic cavity
- C. abdominal cavity
- D. retroperitoneal space
Correct Answer: C
Rationale: The testes originate in the abdominal cavity in a fetus. During development, they descend into the scrotal sac through the inguinal canal. This process is essential for proper sperm production as the scrotal environment provides optimal temperature for sperm development. The other choices are incorrect because the testes do not initially form in the scrotal sac, pelvic cavity, or retroperitoneal space. The correct sequence of descent from the abdominal cavity to the scrotal sac is crucial for normal reproductive function.
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Large process on the femur that is present for attachment of muscles is
- A. condyle
- B. tubercle
- C. bone head
- D. trochanter
Correct Answer: B
Rationale: The correct answer is B: tubercle. A tubercle is a small rounded projection on a bone where muscles and ligaments can attach. In this case, the large process on the femur that serves as an attachment site for muscles is a tubercle.
Condyle (choice A) is a rounded prominence at the end of a bone, typically for articulation with another bone. Bone head (choice C) refers to the rounded end of a bone, usually forming a joint. Trochanter (choice D) is a large, blunt process on the femur that serves as an attachment point for muscles, but it is not the specific term for the large process on the femur mentioned in the question.
While giving a history, the patient reports having herpes genitalis. Based on this information, which finding does the nurse anticipate during the assessment?
- A. Small vesicles on the genitalia
- B. Single, firm, painless, open sore
- C. Pain when palpating the cervix
- D. Malodorous greenish-yellow vaginal discharge
Correct Answer: A
Rationale: The correct answer is A: Small vesicles on the genitalia. Genital herpes typically presents with small vesicles on the genitalia. These vesicles are usually painful and may be accompanied by itching or burning sensations. The presence of vesicles is a hallmark sign of genital herpes.
Summary:
B: Single, firm, painless, open sore is more characteristic of syphilis, not genital herpes.
C: Pain when palpating the cervix is not a typical finding in genital herpes.
D: Malodorous greenish-yellow vaginal discharge is more indicative of a bacterial infection like trichomoniasis, not genital herpes.
Regarding histology of male reproductive system
- A. Leydig cells are found in the seminiferous tubule
- B. Sertoli cells are involved in maturation of spermatids.
- C. The luminal epithelium of efferent ductules is irregular.
- D. Contraction of smooth muscle in vas deferens is stimulated via sympathetic
Correct Answer: C
Rationale: The correct answer is C because the luminal epithelium of efferent ductules is indeed irregular, which helps in absorption and modification of fluid. A, Leydig cells are located outside the seminiferous tubule. B, Sertoli cells provide nourishment and support to developing sperm cells but do not mature spermatids. D, Contraction of smooth muscle in vas deferens is stimulated by the parasympathetic nervous system, not the sympathetic.
A cell called the ______ is a fertilized cell with 46 chromosomes.
- A. spermatozoon
- B. polar body
- C. ovum
- D. zygote
Correct Answer: D
Rationale: The correct answer is D: zygote. A zygote is formed when a sperm cell fertilizes an egg cell, resulting in a single cell with a full set of 46 chromosomes. This process is called fertilization and marks the beginning of a new individual. The other choices (A: spermatozoon, B: polar body, C: ovum) are not correct because a spermatozoon is a mature sperm cell with 23 chromosomes, a polar body is a byproduct of meiosis in the female reproductive system and has only 23 chromosomes, and an ovum is an unfertilized egg cell also containing 23 chromosomes.
A patient comes in having had repeated colds and infections. Problems in his ear are shown to be due to accumulation of fluid in the middle ear. This is due to a blockage of the:
- A. Saccule
- B. Utricle
- C. External ear
- D. Eustachian tube
Correct Answer: D
Rationale: The correct answer is D: Eustachian tube. The Eustachian tube connects the middle ear to the back of the nose and throat, helping to equalize air pressure and drain fluid from the middle ear. Blockage of the Eustachian tube can lead to fluid accumulation in the middle ear, causing ear problems. The other choices, A: Saccule and B: Utricle, are structures in the inner ear related to balance and hearing, not fluid drainage. Choice C: External ear, refers to the outer ear structures and is not involved in middle ear fluid accumulation.