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Nursing Elites

ATI TEAS 7

Mathematics

1. Which of the following numbers is the greatest common factor (GCF) of 12 and 18?

Correct answer: C

Rationale: The GCF is the largest number that is a factor of both 12 and 18. We can factor each number to find common factors: 12 = 2 x 2 x 3 and 18 = 2 x 3 x 3. The greatest common factor that appears in both factorizations is 6 (2 x 3).

2. The tonsils and adenoids, located in the throat, are part of the:

Correct answer: A

Rationale: The correct answer is A: "Lymphatic system." The tonsils and adenoids are part of the lymphatic system, which plays a crucial role in the body's immune response. These tissues help trap and fight off bacteria and viruses that enter the body through the mouth and nose. The lymphatic system is responsible for producing white blood cells and antibodies that help protect the body from infections. Therefore, the tonsils and adenoids are essential components of the lymphatic system, not the endocrine, respiratory, or digestive systems.

3. Which term describes the functional unit of a skeletal muscle responsible for muscle contraction?

Correct answer: b

Rationale: The correct answer is B: Sarcomere. A sarcomere is the functional unit of a skeletal muscle responsible for muscle contraction. It is made up of overlapping filaments of actin and myosin proteins. Myofibrils are long, cylindrical structures within muscle cells that contain sarcomeres. Tendons are tough bands of fibrous connective tissue that connect muscles to bones and facilitate movement. Myoglobin is a protein found in muscle cells that stores oxygen for muscle use during exercise. Therefore, the sarcomere is specifically responsible for muscle contraction, making it the correct answer in this question.

4. What is a potential limitation of using case studies in scientific research?

Correct answer: C

Rationale: While case studies provide valuable individual details, their small sample size and specific context limit their ability to represent broader trends or populations.

5. Identify the pronoun in the following sentence: She quickly finished her homework before dinner.

Correct answer: C

Rationale: Pronouns take the place of nouns. "Her" replaces a specific female person's name.

6. Maintaining good muscle strength and flexibility as we age becomes important to avoid:

Correct answer: B

Rationale: The correct answer is B: 'Falls.' Maintaining good muscle strength and flexibility as we age is crucial for preventing falls, which become more common with age and can lead to serious injuries such as fractures. Strong muscles and good flexibility help in maintaining balance and stability, reducing the risk of falls. Headaches, anxiety, and the common cold are not directly related to muscle strength and flexibility, making them less likely to be avoided by focusing on these aspects of physical health.

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