Nokea
A male nurse is teaching a client about the scrotum and the ability of sperm to be effective in fertility. The nurse teaches the client that the sperm is contained in the testes and that its temperature is regulated by which of the following?
- A. Penis and surrounding structures
- B. Bladder tone
- C. Structure of the scrotum
- D. Smooth and skeletal muscles in the scrotum
Correct Answer: D
Rationale: The scrotum contains smooth and skeletal muscles that help regulate the temperature necessary for spermatogenesis.
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Displacement of a bone form its joint is known as ____________________.
- A. Fracture
- B. Dislocation
- C. Displacement
- D. Sprain
Correct Answer: B
Rationale: Dislocation is the correct answer because it specifically refers to the displacement of a bone from its joint. A fracture (choice A) is a break in a bone, not a displacement. Choice C, displacement, is too general and does not specify the bone being out of a joint. A sprain (choice D) involves the stretching or tearing of ligaments, not the displacement of a bone. Therefore, dislocation is the most accurate term for the scenario described.
Which of the following are the advantages of a vaginal hysterectomy over an abdominal hysterectomy?
- A. Fewer complications
- B. Increased recovery time
- C. Radical hysterectomy can even be done laparoscopically
- D. No pain
Correct Answer: A
Rationale: Vaginal hysterectomies generally have fewer complications and quicker recovery times compared to abdominal procedures.
An egg that has been fertilized by a sperm is called a _______________.
- A. implatation
- B. zygote
- C. embryo
- D. Breast
Correct Answer: B
Rationale: The correct answer is B: zygote. After fertilization, when the sperm and egg unite, they form a zygote. This is the initial stage of a new organism's development. Implantation (A) occurs when the embryo attaches to the uterus. Embryo (C) is the term for the developing organism after the zygote stage. Breast (D) is not related to the fertilization process. In this context, zygote is the most appropriate term as it specifically refers to the newly formed cell after fertilization.
Spermatogenesis:
- A. occurs in several stages;
- B. includes stages of meiosis I;
- C. includes stages of meiosis II;
- D. it is stimulated by the FSH;
Correct Answer: A
Rationale: Correct Answer: A
Rationale: Spermatogenesis is a complex process involving several stages such as mitosis, meiosis, and maturation. It starts with the division of spermatogonia through mitosis, followed by meiosis I and II to form haploid spermatids. These spermatids then undergo maturation to become spermatozoa. Therefore, spermatogenesis occurs in several stages, making choice A the correct answer.
Summary of Incorrect Choices:
B: While spermatogenesis does involve meiosis, it includes both meiosis I and II, not just meiosis I.
C: Spermatogenesis includes both meiosis I and II, not just meiosis II.
D: Spermatogenesis is primarily regulated by hormones such as testosterone and LH, not FSH.
The inner lining of the vagina is _____ epithelium.
- A. simple cuboidal
- B. simple columnar
- C. mucous
- D. stratified squamous
Correct Answer: D
Rationale: The correct answer is D: stratified squamous epithelium. This type of epithelium is found in the vagina to provide protection against abrasion and infection due to its multiple layers of cells. The stratified nature allows for wear and tear resistance. Simple cuboidal and columnar epithelia are not ideal for this function due to their single layer structure. Mucous epithelium is not a recognized epithelial type.