pterygomandibular space

pter·y·go·man·dib·u·lar space

the area between the mandibular ramus and the pterygoid process of the sphenoid bone.

pterygomandibular space (triangle),

n the space between the medial area of the mandible and the medial pterygoid muscle, a target area for administering local anesthesia to the inferior alveolar nerve.