52) Which of the following phrases best describes the function of the vertebral

Question

52) Which of the following phrases best describes the function of the vertebral curves? A) to improve cervical center of gravity B) to accommodate muscle attachment C) to provide resilience and flexibility D) to accommodate the weight of the pelvic girdle 53) Which of the following is true about paranasal sinuses? A) Paranasal sinuses are found in maxillary, ethmoid, and lacrimal bones. B) Paranasal sinuses contain passages acting as one-way valves. C) Paranasal sinuses open into the oral cavity. D) Paranasal sinuses enhance the resonance of the voice and lighten the skull.

Explanation / Answer

52) A. To improve cervical gravity since cervical nerves provide control sensation to different parts of the body based on the spinal level from where they branch out. More specifically C1, C2, and C3 (the first three cervical nerves) control the head and neck, including movements forward, backward and to the sides.

53) Answer is D. Paranasal sinuses enhance the resonance of the voice and lighten the skull.

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