meckel Definition

a syndrome inherited as an autosomal recessive trait and typically characterized by occipital encephalocele, microcephaly, cleft palate, polydactyly, and polycystic kidneys —called also Meckel's syndrome

a space beneath the dura mater containing the trigeminal ganglion —called also Meckel's cavity

the cartilaginous bar of the embryonic mandibular arch of which the distal end ossifies to form the malleus and most of the rest disappears in development, with the part adjacent to the malleus being replaced by fibrous membrane comprising the sphenomandibular ligament and the connective tissue covering most of the remaining part ossifying to form much of the mandible

the proximal part of the omphalomesenteric duct when persistent as a blind fibrous tube connected with the lower ileum

pterygopalatine ganglion

an autonomic ganglion of the maxillary nerve that is situated in the pterygopalatine fossa and that receives preganglionic parasympathetic fibers from the facial nerve and sends postganglionic fibers to the nasal mucosa, palate, pharynx, and orbit —called also Meckel's ganglion, sphenopalatine ganglion