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Nursing Elites

ATI TEAS 7

Anatomy

1. What mineral is essential for muscle function and can cause cramps if deficient?

Correct answer: B

Rationale: The correct answer is B: Calcium. Calcium is essential for muscle function, including muscle contraction and relaxation. A deficiency in calcium can lead to muscle cramps and spasms. While sodium, potassium, and magnesium are also important for muscle function, calcium specifically plays a crucial role in muscle contractions. Therefore, calcium is the mineral that is essential for muscle function and can cause cramps if deficient.

2. What property of matter measures the amount of space occupied by an object?

Correct answer: d

Rationale: Volume measures the amount of space occupied by an object.

3. The phrase "massive open online courses" (MOOCs) refers to

Correct answer: B

Rationale: MOOCs by definition are open and accessible courses, aligning with B.

4. What is a lifestyle practice that can benefit the lymphatic system?

Correct answer: C

Rationale: The correct answer is C: Regularly engaging in moderate exercise. Exercise can benefit the lymphatic system by promoting circulation and the movement of lymph fluid throughout the body. This helps to remove toxins and waste products, improving overall lymphatic function. Consuming a high-sugar diet (A) can have a negative impact on the lymphatic system by increasing inflammation and impairing immune function. Maintaining a sedentary lifestyle (B) can lead to poor lymphatic circulation and fluid retention. Smoking cigarettes (D) is harmful to the lymphatic system and overall health, as it can impair immune function and increase inflammation.

5. Muscles that work in opposition to each other, producing opposing movements, are called:

Correct answer: B

Rationale: The correct answer is B: 'Antagonists.' Antagonistic muscles are pairs of muscles that work in opposition to each other to produce opposing movements around a joint. For example, the biceps and triceps in the arm act as antagonists - when the biceps contract to bend the elbow, the triceps relax, and vice versa. Synergists (A) are muscles that work together to create a movement, agonists (C) are primary muscles responsible for generating movement, and fixators (D) are muscles that stabilize joints to allow other movements to occur. Understanding the roles of antagonistic muscles is crucial in biomechanics and exercise science.

6. Positive integers are greater than zero. Which of the following expressions results in the largest positive number?

Correct answer: C

Rationale: 10^2 - 4^2 = 100 - 16 = 84

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