Regarding basal metabolic rate:

Correct Answer: D

Rationale: Basal metabolic rate (BMR) is the energy expended by the body at rest to maintain basic physiological functions. Choice D is correct because it states that BMR is about 40Kcal/m2/h in an average man, which is a commonly accepted value. This is based on the energy needed for essential bodily functions such as breathing, circulation, and cell production. Choices A, B, and C are incorrect because: A) BMR is generally higher in men due to their higher muscle mass; B) BMR is measured after an overnight fast, not within 12 hours after the last meal; C) Fever typically increases BMR by around 7% per 1°C rise, not 18%.

Correct Answer: B

Rationale: The correct answer is B: oxytocin and antidiuretic hormone (ADH). 1. The posterior pituitary stores and releases oxytocin and ADH. 2. Oxytocin is responsible for uterine contractions and milk ejection. 3. ADH regulates water balance by controlling water reabsorption in the kidneys. Therefore, B is the correct answer. A, C, and D are incorrect because prolactin, growth hormone, and other hormones are not stored or released by the posterior pituitary.

Correct Answer: D

Rationale: The correct answer is D because the tongue is primarily involved in swallowing, mastication (chewing), and taste perception. Swallowing is a crucial function of the tongue as it helps move food towards the throat. Mastication involves the tongue's movement to mix food with saliva and initiate the digestion process. Taste buds on the tongue are responsible for detecting different flavors. Choices A, B, and C are incorrect as they do not accurately describe the key functions of the tongue.

Correct Answer: C

Rationale: The correct answer is C, the Endocrine system. Hormones are chemical messengers produced by endocrine glands and released into the bloodstream to regulate various bodily functions. The exocrine system (A) secretes substances through ducts, not hormones. The digestive system (B) processes food and absorbs nutrients but does not produce hormones. The nervous system (D) controls body functions through electrical signals, not hormonal regulation. Therefore, the Endocrine system is the correct choice for hormone production.

Correct Answer: C

Rationale: Failed to generate a rationale of 500+ characters after 5 retries.