calcium concentration in the blood is controlled by which of the following glands
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ATI RN

ATI Anatomy and Physiology

1. Calcium concentration in the blood is controlled by which of the following glands?

Correct answer: D

Rationale: The correct answer is Parathyroid glands. The parathyroid glands are responsible for regulating calcium levels in the blood by secreting parathyroid hormone (PTH). PTH helps increase calcium levels in the blood when they are too low. The other glands listed, such as the Hypothalamus, Thyroid, and Pituitary glands, do not directly control calcium concentration in the blood.

2. Is the parietal pleura a visceral membrane?

Correct answer: B

Rationale: The statement that the parietal pleura is a visceral membrane is false. The parietal pleura is actually a membrane that lines the thoracic cavity and is responsible for protecting and cushioning the lungs. Visceral pleura, on the other hand, is the membrane that covers the surface of the lungs. Therefore, the parietal pleura is not a visceral membrane, making the correct answer 'False.' Choices C and D are not relevant as the question is asking for a true/false statement.

3. Do patterns of growth in preserved bones and tooth decay reflect the health of the people they were a part of?

Correct answer: A

Rationale: Patterns of growth in preserved bones and tooth decay can indeed reflect the health of the individuals they belonged to. Growth patterns can indicate malnutrition or diseases during childhood, while tooth decay can signify dietary habits and overall health. Therefore, the correct answer is 'Yes.' 'No' is incorrect because these factors can provide valuable information about the health of individuals. 'Not enough information to determine' is incorrect as these indicators are commonly used in anthropological and archaeological studies to understand health conditions in past populations. 'Not applicable' is also incorrect as the information from bones and tooth decay is relevant to assessing the health of individuals.

4. Which of the following is a result of stimulation of the sympathetic nervous system?

Correct answer: B

Rationale: Stimulation of the sympathetic nervous system leads to an increase in cardiac output. When the sympathetic nervous system is activated, it causes the heart to beat faster and with more force, leading to an increased cardiac output. Choices A, C, and D are incorrect because the sympathetic nervous system does not cause decreased blood flow to the skeletal muscles, decreased respiratory rate, or increased urinary output.

5. Which of the following bones is a component of the appendicular skeleton?

Correct answer: B

Rationale: The correct answer is B: Symphysis pubis. The symphysis pubis is a component of the appendicular skeleton, specifically part of the pelvic girdle. The xiphoid process (Choice A) is part of the axial skeleton, located at the lower end of the sternum. The sacrum (Choice C) is also part of the axial skeleton, forming the posterior part of the pelvis. The sternum (Choice D) is part of the axial skeleton, located in the center of the chest.

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