how does human sperm locomote
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Nursing Elites

HESI RN

Reproductive System Exam Quizlet

1. How does human sperm move?

Correct answer: A

Rationale: Human sperm moves using flagella, which are whip-like structures that aid in propulsion. Flagella are tail-like structures found in sperm cells and help them swim towards the egg for fertilization. Cilia are shorter, hair-like structures that are not involved in the movement of sperm. Neutrophils are a type of white blood cell involved in the immune response and are not related to sperm locomotion.

2. The patient about to undergo gynecological surgery is put on nil by mouth for ____ before surgery to prevent aspiration.

Correct answer: C

Rationale: Patients undergoing gynecological surgery are typically advised to be nil by mouth for 4-6 hours before the procedure to reduce the risk of aspiration. This duration allows the stomach to empty its contents, decreasing the likelihood of regurgitation and aspiration of stomach contents during surgery. Choices A, B, and D have shorter durations and may not provide sufficient time for adequate gastric emptying, increasing the risk of aspiration.

3. In which of the following types of spontaneous abortions would the nurse assess dark brown vaginal discharge and a negative pregnancy test?

Correct answer: C

Rationale: Dark brown vaginal discharge and a negative pregnancy test are characteristic of a missed abortion. In a missed abortion, the fetus has died, but the products of conception are retained in the uterus. This can lead to symptoms like dark brown vaginal discharge as the body tries to expel the nonviable pregnancy. A threatened abortion is characterized by vaginal bleeding without dilation of the cervix, and the pregnancy remains viable. Imminent abortion involves cervical dilation and effacement with no passage of tissue. In an incomplete abortion, only part of the products of conception are expelled, leading to persistent bleeding and cramping.

4. What is the role of the progesterone hormone?

Correct answer: A

Rationale: The correct answer is A. Progesterone hormone's role includes stimulating the development of the nipple and duct system in the breast. This hormone is crucial for preparing the breast for potential pregnancy by promoting the growth of structures necessary for milk production. Choices B, C, and D are incorrect because progesterone primarily focuses on preparing the breast for lactation rather than directly stimulating milk storage, relaxin secretion, or glandular tissue development.

5. At 8-12 weeks of pregnancy, the breast changes include:

Correct answer: D

Rationale: At 8-12 weeks of pregnancy, the breast changes typically include the onset of colostrum production, not just tenderness. Colostrum is the first milk produced by the mammary glands during pregnancy. While some women may experience prickling or tingling sensations, prominent and mobile nipples, and darkening of the nipple, the key change during this time period is the production of colostrum. This substance is rich in antibodies and important for the newborn's initial nutrition. Therefore, the correct answer is not listed among the choices provided.

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