Nokea
_________________ is a connective tissue that connects a muscle to a bone.
- A. Tendon
- B. Ligament
- C. Bursae
- D. Synovial membrane
Correct Answer: C
Rationale: I'm sorry, but the correct answer provided in the question is incorrect. The connective tissue that connects a muscle to a bone is called a tendon, not bursae. Tendons are fibrous tissues that transmit the mechanical force generated by muscles to bones, allowing movement. Ligaments connect bones to bones, bursae are fluid-filled sacs that reduce friction between tissues, and synovial membrane lines joint cavities and produces synovial fluid for lubrication. Therefore, the correct answer is A: Tendon.
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Which of the following statements relating to lactation is incorrect.
- A. plasma prolactin releasing factor stimulates the release of prolactin from the anterior pituitary.
- B. mechanical stimulation and neural inputs stimulate the anterior pituitary to secrete prolactin releasing factor and oxytocin.
- C. plasma oxytocin stimulates the contraction of breast glands causing milk ejection.
- D. progesterone helps prepare the mammary glands for lactation
Correct Answer: B
Rationale: The correct answer is B because mechanical stimulation and neural inputs do not directly stimulate the anterior pituitary to secrete prolactin releasing factor and oxytocin. The release of prolactin is primarily controlled by the hypothalamus through the release of prolactin inhibitory hormone (dopamine) and prolactin releasing hormone. Oxytocin release is controlled by the hypothalamus in response to suckling. Choices A, C, and D are all correct statements about lactation. Plasma prolactin releasing factor (prolactin releasing hormone) does stimulate the release of prolactin, plasma oxytocin does stimulate milk ejection, and progesterone does prepare the mammary glands for lactation.
The ovule forms in:
- A. the medullar area of the ovary;
- B. the mature ovarian follicle;
- C. the Fallopian tube;
- D. the uterus;
Correct Answer: B
Rationale: The correct answer is B: the mature ovarian follicle.
1. Ovule formation occurs within the ovary, specifically within a structure called the ovarian follicle.
2. The mature ovarian follicle contains the ovum (oocyte) which develops into the ovule.
3. The ovule is released during ovulation from the mature ovarian follicle.
In contrast, the other choices are incorrect:
A: The medullar area of the ovary does not play a direct role in ovule formation.
C: The Fallopian tube is where fertilization typically occurs, not ovule formation.
D: The uterus is not involved in ovule formation; it is the site of embryo implantation during pregnancy.
Identify the CORRECT strategy to achieve external fertilization.
- A. Female organism will modify its body parts to receive male gametes.
- B. Fertilization must occur at night to avoid predators.
- C. Eggs and sperm must be shed simultaneously into water.
- D. The release of eggs is more frequent than the release of sperm.
Correct Answer: C
Rationale: The correct strategy for external fertilization is to have eggs and sperm shed simultaneously into water. This allows the gametes to meet and fertilize outside of the organism's body. This method is effective in aquatic environments where the chances of gametes coming into contact are increased. Choice A is incorrect as it describes internal fertilization. Choice B is irrelevant to the process of external fertilization. Choice D is incorrect as the frequency of egg and sperm release does not determine the success of external fertilization.
The nurse is assessing a client for reproductive health problems. What would be the priority assessments? (Select all that apply.)
- A. Bleeding
- B. Pain
- C. Sexual orientation
- D. Masses
Correct Answer: A
Rationale: The correct answer is A: Bleeding. Bleeding is a priority assessment because it can indicate serious reproductive health issues such as ectopic pregnancy or cervical cancer. Pain and masses are important assessments, but bleeding takes precedence due to its potential urgency. Sexual orientation is not a priority assessment for reproductive health problems as it does not directly impact the client's immediate physical health.
Twins resulting from the fertilization of separate ova by separate sperm cell are called:
- A. Paternal twins
- B. Maternal twins
- C. Fraternal twins
- D. Identical twins
Correct Answer: C
Rationale: The correct answer is C: Fraternal twins. Fraternal twins result from the fertilization of separate ova by separate sperm cells, leading to siblings who share 50% of their genetic material. This is different from identical twins (choice D), which result from the fertilization of a single egg by a single sperm cell, leading to siblings who share 100% of their genetic material. Choices A and B are incorrect as they do not accurately describe the process of fraternal twinning. Paternal twins (choice A) and maternal twins (choice B) are not commonly used terms in genetics to describe types of twinning.