ATI RN
Endocrine System Questions and Answers PDF Questions
Question 1 of 5
Which is NOT produced by the citric acid cycle?
Correct Answer: A
Rationale: Step 1: NAD+ is a reactant in the citric acid cycle, not a product. Step 2: NAD+ is reduced to NADH during the cycle. Step 3: NAD+ is not directly produced as a final product in the cycle. Step 4: Therefore, A: NAD+ is NOT produced by the citric acid cycle. Summary: B: CO2 and D: FADH2 are produced in the cycle, while C: GTP is generated through substrate-level phosphorylation.
Question 2 of 5
The hypothalamus is functionally and anatomically connected to the posterior pituitary lobe by a bridge of .
Correct Answer: B
Rationale: The correct answer is B: nerve axons. The hypothalamus communicates with the posterior pituitary lobe through nerve axons that form the hypothalamic-pituitary tract. This pathway allows for the release of hormones such as oxytocin and vasopressin directly into the bloodstream. Blood vessels (choice A) are not directly responsible for the connection between the hypothalamus and the posterior pituitary. Cartilage (choice C) and bone (choice D) do not play a role in this connection and are not anatomically linked to the hypothalamus and posterior pituitary.
Question 3 of 5
State what the oesophagus connects to?
Correct Answer: D
Rationale: The correct answer is D: Throat to stomach. The esophagus connects the throat (pharynx) to the stomach, allowing food to pass from the mouth to the stomach for digestion. Choice A is incorrect as the esophagus does not connect the throat to the lungs. Choices B and C are also incorrect as they mention connections that do not involve the esophagus. The esophagus specifically functions to transport food and liquids from the mouth to the stomach for further digestion.
Question 4 of 5
Which of the following is NOT a function of hormones?
Correct Answer: C
Rationale: Answer C is correct because all of the other choices are indeed functions of hormones. A) Hormones play a crucial role in controlling reproduction by regulating the menstrual cycle, ovulation, and sperm production. B) Hormones such as serotonin and dopamine have a direct impact on mood regulation and emotional well-being. D) Hormones like growth hormone and thyroid hormones are essential in influencing growth and development. Therefore, since all the other choices are valid functions of hormones, the correct answer is C, NONE OF THE ABOVE.
Question 5 of 5
How do hormones respond following the ingestion of a high-protein, carbohydrate-free meal?
Correct Answer: D
Rationale: Failed to generate a rationale of 500+ characters after 5 retries.