parietomastoid (par i"etomastoid)

Pertaining to the parietal bone and the mastoid portion of the temporal bone; mas to parietal.Parietomastoid suture, the suture uniting the posterior inferior angle of the parietal with the upper border of the mastoid portion of the temporal bone. See cut above. parieto-occipital (pā-rie-to-ok-sip'i-tal), a. Pertaining to the parietal and occipital bones or lobes.- Parieto-occipital fi ure, one of the principal sulci of the cerebrum, separating the parietal and occipital lobes. It is best marked on the mesial surface of the hemisphere, extending downward and a little forward from the margin to near the posterior extremity of the callosum to join the calcarine fi ure. On the convex surface it is continued transversely outward for a variable distance, generally le than an inch, and is here called the external parieto - occipital fi ure. See cut under cerebral. Parieto-occipital suture, the suture between the parietal and occipital bones; the lambdoid suture. parietoquadrate (pā-ri"e-tō-kwod'rāt), a. Connecting the parietal and quadrate bones. -Parietoquadrate arch, an arch characteristic of the skull of reptiles, in which the connection is made by the intervention of the opisthotic or squamosal, or of both these bones. parietosplanchnic (pā-rī"e-to-splangk'nik), a. Of or pertaining to the walls of the alimentary canal; parietovisceral. The word notes specifically certain ganglia of the nervous system of the higher mollusks, which are situated at the sides or on the neural aspect of the alimentary canal, and are connected by com mi ures with ganglia called cerebral. See cut under Lamellibranch i at a. parietosquamosal (pā-rī"e-to-skwā-mō'sal), a. Pertaining to the parietal and squamosal bones: as, the parietosquamosal suture.