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The meaning of PETROSAL is of, relating to, or situated in the region of the petrous portion of the temporal bone or capsule of the inner ear.
In other mammals, it is a separate bone, the petrosal bone. The petrous bone is important for studies of ancient DNA from skeletal remains, as it tends to contain extremely well-preserved DNA.
Jan 1, 2025 · The greater petrosal nerve is a part of the facial nerve that helps control some important functions in the body, like tear production and saliva flow. It starts in the brainstem and travels through the ...
petrosal, adj. & n. meanings, etymology, pronunciation and more in the Oxford English Dictionary
Sep 21, 2025 · petrosal (not comparable) Of great hardness; petrous. (anatomy, relational) Of, pertaining to, or located near the petrous part of the temporal bone or the capsule of the inner ear.
The greater petrosal nerve, which carries sensory fibers as well as preganglionic parasympathetic fibers, emerges from the anterior aspect of the ganglion.
Petrosal definition: petrous; hard or stony.. See examples of PETROSAL used in a sentence.
petrosal Pertaining to, or near, the inner part of the temporal bone (the petrous portion) that surrounds the inner ear. From the Latin petrosus, rocky. Collins Dictionary of Medicine © Robert M. Youngson 2004, 2005 W...
May 25, 2024 · The greater petrosal nerve, also known as the greater superficial petrosal nerve, is a branch of the nervus intermedius (nerve of Wrisberg) that carries parasympathetic, taste, and general sensory fiber...
Definition of 'petrosal' petrosal in British English (pɛˈtrəʊsəl ) adjective
