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Nursing Elites

ATI TEAS 7

Anatomy

1. Which of the following terms refers to a muscle that lengthens while another muscle contracts to produce movement?

Correct answer: C

Rationale: The correct answer is C: Antagonist. In muscle physiology, an antagonist refers to a muscle that lengthens while another muscle contracts to produce movement. This relationship allows for smooth and coordinated movement by controlling the action of the agonist muscle. For example, when you bend your arm, the biceps muscle (agonist) contracts to flex the arm while the triceps muscle (antagonist) lengthens to allow for this movement. Synergists assist the agonist muscle in performing a movement, while flexors are a type of muscle that decreases the angle between bones at a joint. Therefore, the antagonist best fits the description of a muscle that lengthens while another muscle contracts.

2. A scientific theory is:

Correct answer: B

Rationale: Theories in science are constantly evolving and open to revision as new data emerges, unlike personal beliefs or fixed dogmas.

3. Which phase of the employment process includes getting on the payroll and completing

Correct answer: D

Rationale: The correct answer is D: Recruitment. Recruitment is the phase of the employment process where organizations actively seek out and attract potential candidates for job openings. This involves advertising the position, sourcing candidates, and conducting initial screenings. Once the recruitment process is complete and a candidate has been selected, they move on to the selection phase. Orientation, on the other hand, occurs after a candidate has been hired and involves familiarizing the new employee with the organization, its policies, and their role. Induction is often used interchangeably with orientation and refers to the process of integrating a new employee into the organization. Therefore, in this context, recruitment is the most appropriate phase that involves getting on the payroll and completing the initial steps to bring a new employee on board.

4. Which of the following blood vessels carries oxygenated blood from the lungs back to the left atrium of the heart?

Correct answer: B

Rationale: The correct answer is B: Pulmonary vein. The pulmonary vein is the blood vessel that carries oxygenated blood from the lungs back to the heart. Oxygenated blood flows from the lungs through the pulmonary veins to the left atrium of the heart, where it is then pumped out to the rest of the body through the aorta. The pulmonary artery, on the other hand, carries deoxygenated blood from the heart to the lungs for oxygenation. The aorta is the largest artery in the body and carries oxygenated blood from the heart to the rest of the body. The inferior vena cava carries deoxygenated blood from the lower body back to the right atrium of the heart. Therefore, the correct choice is B, the pulmonary vein, as it specifically carries oxygenated blood from the lungs back to the left atrium of the heart.

5. Acids are generally characterized by a sour taste and the ability to:

Correct answer: B

Rationale: Acids release hydrogen ions (H+) in solution, allowing electrical conductivity

6. In the phrase "a drop in the bucket," "bucket" represents:

Correct answer: B

Rationale: The phrase signifies that something is insignificant compared to a much larger amount.

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