Nokea
___________is an organelle that helps the sperm to penetrate the ovum.
- A. Acrosome
- B. Zona pellucida
- C. Megalis
- D. None of the above
Correct Answer: A
Rationale: The correct answer is A: Acrosome. The acrosome is an organelle in the head of the sperm that contains enzymes which help the sperm penetrate the outer layer of the ovum during fertilization. It plays a crucial role in the fertilization process.
Explanation of other choices:
B: Zona pellucida is the outer membrane of the ovum that the sperm needs to penetrate, not an organelle within the sperm itself.
C: Megalis is not a relevant organelle involved in fertilization.
D: None of the above is incorrect as the acrosome is the specific organelle that aids in sperm penetration of the ovum.
You may also like to solve these questions
A nurse is working with a client who has undergone chemotherapy for breast cancer. The client is experiencing body image disturbances. Which of the following symptoms would contribute to this psychosocial issue?
- A. Fatigue
- B. Vomiting
- C. Hair loss
- D. Nausea
Correct Answer: C
Rationale: Hair loss is a visible side effect of chemotherapy that can significantly impact body image.
Three days after having a pelvic exenteration procedure, a client suddenly complains of a 'giving' sensation along her abdominal incision. You check under the dressing and find that the wound edges are open and loops of intestine are protruding. Which action should you take first?
- A. Call the client's surgeon and report that wound evisceration has occurred.
- B. Cover the wound with saline-soaked dressings.
- C. Don sterile gloves and gently replace the intestine back in the wound.
- D. Check the client's blood pressure and heart rate.
Correct Answer: B
Rationale: Covering the exposed tissue with saline-soaked dressings prevents drying and reduces risk of further complications.
Female reproductive system arises from
- A. Paramesonephric (Mullerian) ducts
- B. Mesonephric (Wolffian) ducts
- C. aldosterone
- D. FSH
Correct Answer: A
Rationale: The female reproductive system arises from Paramesonephric (Mullerian) ducts. These ducts develop into the fallopian tubes, uterus, and upper part of the vagina. Initially present in both sexes, in females, they persist and differentiate into the female reproductive organs under the influence of estrogen. Mesonephric (Wolffian) ducts develop into male reproductive structures. Aldosterone is a hormone related to electrolyte balance and has no direct role in female reproductive system development. FSH (Follicle-Stimulating Hormone) is a pituitary hormone that stimulates ovarian follicle development but does not play a role in the initial development of the female reproductive system.
Patella is a
- A. Irregular bone
- B. Short bone
- C. Sesamoid bone
- D. Flat bone
Correct Answer: C
Rationale: The patella is a sesamoid bone located within the tendon of the quadriceps femoris muscle. Sesamoid bones are small, round bones embedded within tendons, providing protection and improving the mechanical advantage of the muscle. It is not irregular (A), short (B), or flat (D) as it does not fit the structural characteristics of those bone types. Therefore, the correct answer is C.
A 68-yr-old male patient tells the nurse that he is worried because he does not respond to sexual stimulation the same way he did when he was younger. Which is the nurse’s best response to the patient’s concern?
- A. “Interest in sex frequently decreases as men get older.”
- B. “Many men need additional sexual stimulation with aging.”
- C. “Erectile dysfunction is a common problem with older men.”
- D. “Tell me more about how your sexual response has change
Correct Answer: B
Rationale: The correct answer is B: "Many men need additional sexual stimulation with aging." With aging, physiological changes can affect sexual response. Additional stimulation may be required due to lower hormone levels and decreased sensitivity. This response acknowledges the patient's concern and provides a factual explanation.
Incorrect answers:
A: "Interest in sex frequently decreases as men get older." - While libido may decrease with age, it doesn't directly address the patient's concern about sexual response.
C: "Erectile dysfunction is a common problem with older men." - Erectile dysfunction is only one aspect of sexual response and may not be the main issue for the patient.
D: "Tell me more about how your sexual response has changed." - While this shows empathy, it doesn't provide information or address the potential need for additional stimulation.