ATI TEAS 7
Anatomy
1. Which of the following is the primary function of the lymphatic system?
- A. Transporting oxygen and nutrients to cells
- B. Carrying waste products away from tissues
- C. Regulating body temperature
- D. Producing red blood cells
Correct answer: B
Rationale: The correct answer is B: 'Carrying waste products away from tissues.' The primary function of the lymphatic system is to collect excess fluid from tissues and return it to the bloodstream, while also transporting waste products, pathogens, and cellular debris away from tissues to be filtered and eliminated. This helps maintain fluid balance in the body and supports the immune system by removing harmful substances. Options A, C, and D do not accurately describe the primary function of the lymphatic system, making them incorrect choices.
2. What type of nuclear reaction releases a large amount of energy in a short time?
- A. Radioactivity
- B. Nuclear fission
- C. Nuclear fusion
- D. All of the above
Correct answer: C
Rationale: Nuclear fusion releases a large amount of energy in a short time by combining two light atomic nuclei to form a heavier nucleus. This process is the energy source of the sun and hydrogen bombs. Radioactivity involves the spontaneous emission of particles or energy from an unstable atomic nucleus, while nuclear fission is the splitting of a heavy atomic nucleus into two or more lighter nuclei, also releasing energy. However, nuclear fusion is specifically known for releasing a large amount of energy in a short time.
3. The statement, “The Good Shepherd Medical Center aims to provide patient-centered care in
- A. Vision
- B. Goal
- C. Philosophy
- D. Mission
Correct answer: A
Rationale: The correct answer is A: "Vision." A vision statement describes the desired future state or long-term goal of an organization. It outlines the aspirations and purpose of the organization, such as providing patient-centered care in this case. Vision statements are forward-looking and inspirational, guiding the organization towards achieving its ultimate objectives. In contrast, a goal is a specific, measurable, and achievable target within a set timeframe. A philosophy is a set of beliefs or guiding principles, while a mission statement defines the organization's core purpose and focus. Therefore, the statement about providing patient-centered care aligns with the concept of a vision statement.
4. What effect does doubling the net force applied to an object have on its acceleration, assuming mass remains constant?
- A. Acceleration doubles
- B. Acceleration is halved
- C. Acceleration remains the same
- D. Acceleration quadruples
Correct answer: a
Rationale: According to Newton's second law (F = ma), if mass remains constant and force doubles, acceleration also doubles.
5. What happens to the internal energy of a system when it performs work on its surroundings?
- A. It increases.
- B. It decreases.
- C. It remains the same.
- D. Information insufficient
Correct answer: B
Rationale: When a system performs work on its surroundings, it loses internal energy in accordance with the first law of thermodynamics.
6. Histamine, released during an allergic reaction, causes symptoms like:
- A. Fever and fatigue
- B. Runny nose and itchiness
- C. Muscle aches and joint pain
- D. Cough and shortness of breath
Correct answer: B
Rationale: The correct answer is B: 'Runny nose and itchiness.' Histamine is a chemical released by the body during an allergic reaction. It causes various symptoms such as itching, sneezing, runny nose, and watery eyes. These symptoms are commonly associated with allergic reactions like hay fever or hives. Fever and fatigue (option A) are not directly caused by histamine release. Muscle aches and joint pain (option C) are not typical symptoms of histamine release during an allergic reaction. Cough and shortness of breath (option D) are more commonly associated with asthma or respiratory allergies rather than histamine release.
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