INBDE (Integrated National Board Dental Examination) Practice Exam

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Pterygomandibular space is between?

  1. Lateral pterygoid and mandibular ramus

  2. Medial pterygoid and mandibular ramus

  3. Masseter and zygomatic arch

  4. Temporalis and skull base

The correct answer is: Medial pterygoid and mandibular ramus

The pterygomandibular space is located between the medial pterygoid muscle and the mandibular ramus. This space is important in dentistry as it contains the inferior alveolar nerve, artery, and vein, as well as the sphenomandibular ligament. Understanding the anatomy and structures within this space is crucial for various dental procedures such as inferior alveolar nerve blocks. Therefore, the correct answer is B. Option A is incorrect as the lateral pterygoid muscle is not involved in defining the pterygomandibular space. Option C is incorrect as the masseter muscle and zygomatic arch do not delineate the pterygomandibular space. Option D is incorrect as the temporalis muscle and skull base do not border the pterygomandibular space.

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