Nursing Elites

1. How many bones are found in the human skull?

• A. Approximately 5
• B. Approximately 30
• C. Approximately 60
• D. Approximately 210

Correct answer: B

Rationale: The correct answer is B: Approximately 30. The human skull is composed of 22 bones that are fused together. These 22 bones consist of 8 cranial bones and 14 facial bones, totaling approximately 30 bones in total. Choices A, C, and D are incorrect because the human skull does not have as few as 5 bones, as many as 60 bones, or as many as 210 bones. Understanding the basic anatomy of the skull helps in identifying the correct number of bones it comprises.

2. A 5-cm candle is placed 20 cm away from a concave mirror with a focal length of 10 cm. What is the image distance of the candle?

• A. 20 cm
• B. 40 cm
• C. 60 cm
• D. 75 cm

Correct answer: C

Rationale: To find the image distance of the candle, we use the mirror formula: 1/f = 1/do + 1/di, where f is the focal length, do is the object distance, and di is the image distance. In this case, the focal length f = 10 cm and the object distance do = 20 cm. Substituting these values into the formula gives us 1/10 = 1/20 + 1/di. Solving for di, we get di = 60 cm. Therefore, the image distance of the candle is 60 cm. Choice A (20 cm) is incorrect because it represents the object distance, not the image distance. Choice B (40 cm) is incorrect as it does not consider the mirror formula calculation. Choice D (75 cm) is incorrect as it does not match the correct calculation based on the mirror formula.

3. If an impulse is traveling from a sense receptor toward the spinal cord, it is traveling along what type of neuron?

• A. Motor neuron
• B. Sensory neuron
• C. Interneuron
• D. Bipolar neuron

Correct answer: B

Rationale: The correct answer is B: Sensory neuron. A sensory neuron is responsible for carrying impulses from sensory receptors to the spinal cord. These neurons transmit information about external stimuli from the periphery to the central nervous system for processing and response. Choice A, Motor neuron, is incorrect as motor neurons carry signals from the central nervous system to muscles and glands, enabling movement and secretion. Choice C, Interneuron, is incorrect as interneurons act as connectors between sensory and motor neurons, primarily facilitating communication between the two. Choice D, Bipolar neuron, is incorrect as bipolar neurons are specialized sensory neurons found in some sensory organs like the retina of the eye and the olfactory epithelium.

4. What word is used incorrectly in the following sentence: 'Whoever wrote the letter forgot to sign their name.'

• A. Whoever
• B. wrote
• C. their
• D. name

Correct answer: C

Rationale: The word 'their' is used incorrectly in the sentence because it is a plural pronoun while 'Whoever' is singular. In this case, 'his or her' should be used instead of 'their' to maintain subject-verb agreement. The other choices 'Whoever,' 'wrote,' and 'name' are used correctly in the sentence.

5. The patient made a ritualistic arranging of the food on his plate. Which word best describes the patient's repetitive behavior?

• A. Formal
• B. Ritualistic
• C. Formalizing
• D. Ritual

Correct answer: B

Rationale: The correct answer is 'Ritualistic.' This adjective describes actions performed in a habitual or ceremonial manner, which aligns with the context of the patient's repeated arrangement of food. 'Formal' (choice A) does not capture the repetitive nature of the behavior. 'Formalizing' (choice C) refers to the process of making something formal rather than describing repetitive behavior. 'Ritual' (choice D) is a noun and does not best describe the patient's behavior in this context.

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