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Nursing Elites

ATI TEAS 7

Anatomy

1. Which vitamin plays a vital role in muscle function and helps prevent muscle weakness and fatigue?

Correct answer: B

Rationale: The correct answer is B: Vitamin B12. Vitamin B12 plays a crucial role in muscle function by aiding in the production of red blood cells, which carry oxygen to the muscles. This vitamin also helps maintain the health of nerves that control muscle movements. Deficiency in vitamin B12 can lead to muscle weakness and fatigue due to decreased oxygen delivery and impaired nerve function in the muscles. Vitamin A is important for vision and immune function, Vitamin D is crucial for bone health, and Vitamin E is an antioxidant that protects cells from damage, but they do not have the same direct impact on muscle function as Vitamin B12.

2. The term "magic number" in nuclear physics refers to specific numbers of protons or neutrons that contribute to:

Correct answer: C

Rationale: The term "magic number" in nuclear physics refers to specific numbers of protons or neutrons that result in exceptional stability of the nucleus. When the number of protons or neutrons in a nucleus align with a magic number, the nucleus is more stable and less likely to undergo spontaneous radioactive decay. This stability is due to the arrangement of nucleons within the nucleus, leading to lower energy states and increased binding energy. Magic numbers play a crucial role in determining the overall stability and behavior of atomic nuclei. Therefore, the correct answer is C: "Exceptional stability of the nucleus."

3. What is the breakdown product of creatine phosphate, an energy source used for short bursts of muscle activity?

Correct answer: D

Rationale: The breakdown product of creatine phosphate is creatine. Creatine phosphate is stored in muscle cells and rapidly converts to creatine to provide energy for short bursts of muscle activity, such as weightlifting or sprinting. It is not converted into glucose, lactic acid, or carbon dioxide. Creatine is then further broken down into creatinine, which is excreted in urine. Therefore, the correct answer is D: Creatine.

4. Which phrase best describes the tone of the passage?

Correct answer: C

Rationale: The passage presents factual information without injecting personal opinions or emotions. A, B, and D suggest tones not present in the passage's neutral delivery.

5. Neon (Ne). Both He and Ne belong to Group 18 (Noble Gases) due to their complete and stable outer electron shells.

Correct answer: C

Rationale: Strong nuclear force. This incredibly powerful force overcomes the repulsive electrostatic force between protons and binds the nucleus together.

6. Identify the comprehensive protection for the brain.

Correct answer: D

Rationale: Rationale: A) The skull provides a hard, protective covering for the brain, shielding it from external trauma and injury. B) The meninges are three layers of membranes (dura mater, arachnoid mater, and pia mater) that surround the brain and spinal cord, providing additional protection and cushioning. C) Cerebrospinal fluid is a clear, colorless fluid that surrounds the brain and spinal cord, acting as a shock absorber and providing nutrients to the central nervous system. Together, the skull, meninges, and cerebrospinal fluid work in conjunction to provide comprehensive protection for the brain, making option D the correct answer.

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