Nokea
The outside layer of the oocyte is the _____.
- A. theca interna
- B. theca externa
- C. zona pellucida
- D. antrum
Correct Answer: C
Rationale: The correct answer is C: zona pellucida. The zona pellucida is the glycoprotein layer surrounding the oocyte. It plays a crucial role in fertilization by binding sperm and facilitating the acrosome reaction. The theca interna and externa are layers surrounding the ovarian follicle, not the oocyte itself. The antrum is a fluid-filled cavity within the follicle, not the outer layer of the oocyte. Therefore, the correct choice is C as it directly relates to the outer layer of the oocyte.
You may also like to solve these questions
A client has been diagnosed with thrombophlebitis. The nurse needs to closely monitor the client for detecting, managing, and minimizing the risk for thrombophlebitis development. Which of the following nursing actions will help a nurse minimize the occurrence of thrombophlebitis in the client?
- A. Give warm sitz baths after sutures have been removed
- B. Apply an air or egg crate mattress to the bed
- C. Administer prescribed analgesics liberally
- D. Assess for and report calf pain or calf tenderness
Correct Answer: D
Rationale: Calf pain or tenderness can be indicative of deep vein thrombosis, a complication of thrombophlebitis.
Which one of the following is not one of the secondary sex characteristics typical of males?
- A. Deepening voice
- B. Increased growth of body hair
- C. Enlargement of skeletal muscle mass
- D. Development of breast tissue
Correct Answer: D
Rationale: The correct answer is D: Development of breast tissue. This is not a secondary sex characteristic typical of males because breast development is a primary sex characteristic associated with females due to the presence of estrogen. In males, the secondary sex characteristics include deepening voice, increased growth of body hair, and enlargement of skeletal muscle mass due to the effects of testosterone. Breast tissue development in males, known as gynecomastia, is abnormal and can be caused by hormonal imbalances or certain medical conditions.
Which hormone is necessary for the growth of endometrial glands, which are important for the sustenance of a growing embryo until its implantation?
- A. Luteinizing hormone (LH)
- B. Testosterone
- C. Progesterone
- D. Inhibin
Correct Answer: C
Rationale: The correct answer is C: Progesterone. Progesterone is necessary for the growth of endometrial glands as it prepares the endometrium for implantation of the embryo. LH is responsible for ovulation, not endometrial gland growth. Testosterone is a male sex hormone and not directly involved in endometrial gland growth. Inhibin regulates FSH secretion, not endometrial gland growth.
Which of the following could inhibit the initiating labor?
- A. Administration of an antagonist of the actions of progesterone
- B. Administration of luteinizing hormone
- C. Administration of an antagonist of prostaglandin E2 effects
- D. Mechanically dilating and stimulating the cervix
Correct Answer: C
Rationale: The correct answer is C because prostaglandin E2 plays a key role in initiating labor by promoting uterine contractions. Administering an antagonist of prostaglandin E2 effects would inhibit this process. Choice A is incorrect as progesterone levels decrease to trigger labor. Choice B is incorrect as luteinizing hormone does not directly influence labor initiation. Choice D is incorrect because mechanical dilation does not inhibit labor initiation but rather can facilitate it.
The radius, ulna and humerus forms the ___________ joint.
- A. Knee
- B. Elbow
- C. Ankle
- D. Shoulder
Correct Answer: B
Rationale: The correct answer is B: Elbow. The radius, ulna, and humerus form the elbow joint. The ulna and humerus articulate at the trochlear notch, forming the hinge joint, while the radius articulates with the humerus at the capitulum, allowing for rotation. This combination of movements allows for flexion and extension of the forearm. The other choices, knee (A), ankle (C), and shoulder (D), involve different bones and joints in the body that do not include the radius, ulna, and humerus.