ATI TEAS 7
Anatomy
1. What is the function of arrector pili muscles?
- A. To control sweat production
- B. To contract and cause goosebumps
- C. To produce sebum
- D. To sense touch
Correct answer: B
Rationale: The correct answer is B: 'To contract and cause goosebumps.' Arrector pili muscles are small muscles attached to hair follicles in the skin. When these muscles contract, they cause the hair to stand upright, resulting in the appearance of goosebumps. This physiological response is a remnant of our evolutionary past when our ancestors had more hair, and the raised hair helped to trap air for insulation or to make them look larger when threatened. Therefore, the function of arrector pili muscles is not to control sweat production (A), produce sebum (C), or sense touch (D), but rather to create the physical response of goosebumps.
2. Two objects with different masses collide. What happens to their momentum after the collision?
- A. Increases for both objects
- B. Decreases for both objects
- C. Remains the same for both objects
- D. Can increase for one and decrease for the other
Correct answer: C
Rationale: In an isolated system (no external forces), the total momentum
3. Which pattern of nursing care involves the care given by a group of paraprofessional workers
- A. Case method
- B. Modular nursing
- C. Nursing case management
- D. Team nursing
Correct answer: A
Rationale: The correct answer is A: 'Case method.' The case method of nursing care involves the care provided by a group of paraprofessional workers, such as nursing assistants or aides, under the supervision of professional nurses. In this model, the nursing team works together to deliver care to a group of patients based on their specific needs and conditions. This method allows for efficient and coordinated care delivery, with each member of the team playing a crucial role in meeting the patients' healthcare needs. It is important for nurses to effectively delegate tasks and supervise paraprofessional workers in the case method model to ensure high-quality care and patient safety.
4. Hair follicles are openings in the skin that house
- A. Blood vessels (Blood vessels are not housed in hair follicles)
- B. Nerve endings (Nerve endings are present but not housed within)
- C. Hair shafts and hair roots
- D. Sebaceous glands (These glands are often attached to hair follicles)
Correct answer: C
Rationale: Hair follicles are structures in the skin that house both the hair shaft and the hair root. The hair shaft is the visible part of the hair that extends from the skin's surface, while the hair root is the part embedded within the hair follicle and extends into the deeper layers of the skin. The sebaceous glands, which produce sebum (an oily substance), are typically attached to hair follicles and help lubricate and protect the hair and skin. Blood vessels and nerve endings are present in the skin but are not housed within the hair follicles themselves. Therefore, the correct answer is C, as hair follicles contain both the hair shaft and hair root.
5. Which sentence uses the word "literally" correctly?
- A. literally died laughing at that joke.
- B. He literally climbed a mountain of paperwork.
- C. Her eyes were literally sparkling with excitement.
- D. The house was literally haunted by ghosts.
Correct answer: B
Rationale: Option B uses "literally" to emphasize the magnitude of work, not to exaggerate a simple action.
6. Which element is used in fluorescent lamps and emits ultraviolet light when excited?
- A. Mercury
- B. Neon
- C. Argon
- D. Krypton
Correct answer: A
Rationale: Mercury vapor in fluorescent lamps generates UV light that excites phosphors on the lamp's inner surface, producing visible light.
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