Which of the following is a function of the female reproductive system?

Correct Answer: A

Rationale: The correct answer is A because the female reproductive system is responsible for manufacturing ova (eggs), estrogen, and progesterone. Ova are necessary for reproduction, while estrogen and progesterone regulate the menstrual cycle and support pregnancy. Choice B is incorrect because testosterone is a male sex hormone produced by the testes. Choice C is incorrect because sperm is produced by the male reproductive system. Choice D is incorrect because insulin is produced by the pancreas and is involved in regulating blood sugar levels, not a function of the female reproductive system.

Correct Answer: D

Rationale: The correct answer is D: Helping clear the lungs. Incentive spirometer aids in deep breathing, promoting lung expansion, improving air exchange, and assisting in clearing mucus and preventing lung complications. Choices A, B, and C do not directly relate to the function of an incentive spirometer in improving lung health.

Correct Answer: A

Rationale: The correct answer is A because Parkinson's disease commonly leads to a shuffling gait due to the characteristic symptoms of muscle rigidity and bradykinesia. This results in difficulty initiating and controlling movement, leading to a distinctive shuffling walk. Option B is incorrect as Parkinson's patients often exhibit stooped posture, not extremely straight posture. Option C is incorrect as memory loss is not a typical symptom of Parkinson's disease. Option D is incorrect as aggressive behavior is not a common symptom associated with Parkinson's disease.

Correct Answer: D

Rationale: The correct answer is D: Regulate the amount of glucose available to the cells for metabolism. Insulin is a hormone produced by the pancreas that helps regulate blood sugar levels by facilitating the uptake of glucose into cells for energy production. This process is essential for maintaining normal blood sugar levels and preventing hyperglycemia. Choice A is incorrect because insulin does not directly regulate growth. Choice B is incorrect as insulin does not specifically stimulate the growth of nervous tissue. Choice C is incorrect because insulin is not involved in triggering the fight or flight response, which is primarily controlled by adrenaline.

Correct Answer: A

Rationale: The correct answer is A: Increased metabolism. Regular activity and exercise stimulate the endocrine system to release hormones that increase metabolism, leading to better energy expenditure and weight management. Improved circulation (B) is more related to the cardiovascular system. Improved relaxation and sleep (C) are benefits of exercise, but they are more related to the nervous system. While increased blood flow to the muscles and improved strength (D) are benefits of exercise, they are more related to the muscular system rather than the endocrine system.