(anatomy, neuroanatomy) A rhombus-shaped depression that is the anterior part of the fourth ventricle of the brain

(anatomy) A large, smooth, concave surface on the internal surface of the ilium.

(anatomy) The hollow at the end of the scapula into which fits the humerus to make the shoulder joint

(anatomy) The pharyngeal recess behind the ostium of the Eustachian tube.

(anatomy) poplit (shallow depression located at the back of the knee joint)

elbow pit

(anatomy) A depression on the front of the maxilla above the incisor teeth.

(anatomy) Synonym of pterygopalatine fossa.

(anatomy) A fossa that is bounded above by the plane of the zygomatic arch, laterally by the ramus of the mandible, and medially by the pterygoid plate, and that contains the masseter and pterygoid muscles and the mandibular nerve.

(anatomy) A small triangular space beneath the apex of the orbit that is bounded above by the sphenoid bone and the orbital process of the palatine bone, in front by the maxilla, medially by the palatine bone, and behind by the pterygoid process of the sphenoid bone and that contains among other structures the pterygopalatine ganglion.