ATI RN
ATI Anatomy and Physiology Online Practice
1. Are the ears lateral to the eyes?
- A. True
- B. False
- C. Not Sure
- D. None of the above
Correct answer: A
Rationale: The correct answer is A: True. Lateral means towards the side or away from the midline. In human anatomy, the ears are located on the sides of the head, which is indeed lateral to the eyes that are positioned more towards the front of the face. Therefore, the statement that the ears are lateral to the eyes is true. Choice B is incorrect because the ears are not positioned closer to the midline than the eyes. Choice C is incorrect as the relationship between the ears and eyes in terms of lateral positioning can be determined anatomically. Choice D is incorrect as there is a clear anatomical relationship between the ears and eyes.
2. Which of the following statements is true concerning the female reproductive system?
- A. It produces female sex cells.
- B. It transports the female sex cells.
- C. It can support the development of an embryo.
- D. All of the above
Correct answer: D
Rationale: The correct answer is 'All of the above.' The female reproductive system produces female sex cells (eggs), transports them through the fallopian tubes, and can support the development of an embryo through the uterus. Choice A is correct because the ovaries produce eggs, choice B is correct as the fallopian tubes transport the eggs, and choice C is correct as the uterus provides the environment for the embryo to develop. Therefore, all of these statements are true regarding the female reproductive system.
3. Which of the following may indicate hypersecretion of thyroid hormone?
- A. weight loss
- B. Bradycardia
- C. cold intolerance
- D. lethargy
Correct answer: A
Rationale: Weight loss is a common symptom of hyperthyroidism, which is characterized by an excess secretion of thyroid hormone. This increased metabolic rate can lead to weight loss despite normal or increased appetite. Bradycardia (slow heart rate), cold intolerance, and lethargy are more commonly associated with hypothyroidism, where there is an insufficient production of thyroid hormone. Therefore, choices B, C, and D are incorrect in the context of hypersecretion of thyroid hormone.
4. Which of the following structures of the gastrointestinal system absorbs iron and bile salts?
- A. Ileum
- B. Jejunum
- C. Colon
- D. Duodenum
Correct answer: A
Rationale: The correct answer is the Ileum. The Ileum is the final section of the small intestine where the absorption of key nutrients such as iron and bile salts occurs. The Jejunum mainly absorbs nutrients like carbohydrates and proteins, while the Duodenum primarily facilitates the absorption of minerals and vitamins. The Colon's main function is to absorb water and electrolytes, not iron and bile salts. Therefore, choices B, C, and D are incorrect.
5. What is the main function of the digestive system?
- A. Formation of cells
- B. Movement of body parts
- C. Absorption of nutrients
- D. Providing oxygen for the extraction of energy from nutrients
Correct answer: C
Rationale: The correct answer is C: Absorption of nutrients. The main function of the digestive system is to break down food into nutrients that can be absorbed by the body to provide energy and support bodily functions. Choice A, 'Formation of cells,' is incorrect as cell formation is not the primary function of the digestive system; it is more related to processes like cell division and growth. Choice B, 'Movement of body parts,' is incorrect as this is more related to the muscular system, which controls body movements. Choice D, 'Providing oxygen for the extraction of energy from nutrients,' is incorrect because providing oxygen is primarily the function of the respiratory system, which is responsible for breathing and oxygen exchange in the body, not the digestive system.
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