The orbits are normal, the petrous bones are normal and the mastoid areas are normal and cellular. From LearnThat.org. [www.yourdictionary.com]
121 The inner projection of the temporal bone is known as the petrous process. From Wordnik.com. [Physiology and Hygiene for Secondary Schools] Reference
In man the internal ear (enclosed in the densest bone of the skull, named, from its density, "petrous") is a very complex organ. From Wordnik.com. [The Common Frog] Reference
On its inner side is a small air chamber in the petrous portion of the temporal bone, called the cavity of the tympanum. From Wordnik.com. [A Practical Physiology] Reference
With bone forceps or a fine saw, split open the petrous portion of the temporal bone and observe the cochlea and the semicircular canals. From Wordnik.com. [Physiology and Hygiene for Secondary Schools] Reference
Her intentionally looking aplomb into the rosary saleswoman's petrous countenance as she paid the money to her was a feigned attempt to project composure and went unnoticed. From Wordnik.com. [An Apostate: Nawin of Thais] Reference
It is very small, and is usually regarded as a detached portion of the petrous ganglion. From Wordnik.com. [IX. Neurology. 5i. The Glossopharyngeal Nerve] Reference
Cholesterol granuloma (CG) may involve the middle ear, the mastoid bone and the petrous apex. From Wordnik.com. [BioMed Central - Latest articles] Reference
The petrous ganglion is connected by a filament with the superior cervical ganglion of the sympathetic. From Wordnik.com. [IX. Neurology. 5i. The Glossopharyngeal Nerve] Reference
The jugular foramen is situated between the lateral part of the occipital and the petrous part of the temporal. From Wordnik.com. [II. Osteology. 5d. The Interior of the Skull] Reference
In passing through the jugular foramen, the nerve presents two ganglia, the superior and the petrous (Fig. 791). From Wordnik.com. [IX. Neurology. 5i. The Glossopharyngeal Nerve] Reference
Each consists of five parts, viz., the squama, the petrous, mastoid, and tympanic parts, and the styloid process. From Wordnik.com. [II. Osteology. 5a. 4. The Temporal Bone] Reference
The petrous portion or pyramid is pyramidal and is wedged in at the base of the skull between the sphenoid and occipital. From Wordnik.com. [II. Osteology. 5a. 4. The Temporal Bone] Reference
A bond of attraction has brought them together, and through this cohesion of ingredients this petrous object has been formed. From Wordnik.com. [The Promulgation of Universal Peace] Reference
The internal ear or labyrinth lies in the petrous part of the temporal bone, its outer boundary being the inner wall of the middle ear. From Wordnik.com. [Manual of Surgery Volume Second: Extremities—Head—Neck. Sixth Edition.] Reference
In considering the course and relations of this vessel it may be divided into four portions: cervical, petrous, cavernous, and cerebral. From Wordnik.com. [VI. The Arteries. 3a. 4. The Internal Carotid Artery] Reference
The structure of the squama is like that of the other cranial bones: the mastoid portion is spongy, and the petrous portion dense and hard. From Wordnik.com. [II. Osteology. 5a. 4. The Temporal Bone] Reference
Lateral to this aperture is a groove, the sulcus tubæ auditivæ, between the petrous part of the temporal and the great wing of the sphenoid. From Wordnik.com. [II. Osteology. 5c. The Exterior of the Skull] Reference
These canals run from the tympanic cavity forward and downward to the retiring angle between the squama and the petrous portion of the temporal bone. From Wordnik.com. [X. The Organs of the Senses and the Common Integument. 1d. 2. The Middle Ear or Tympanic Cavity] Reference
It arises from the under surface of the apex of the petrous part of the temporal bone and from the medial lamina of the cartilage of the auditory tube. From Wordnik.com. [XI. Splanchnology. 2b. The Fauces] Reference
The sensory fibers arise from the cells of the superior and petrous ganglia, which are situated on the trunk of the nerve, and will be presently described. From Wordnik.com. [IX. Neurology. 5i. The Glossopharyngeal Nerve] Reference
The petrosquamous sinus, when present, runs backward along the junction of the squama and petrous portion of the temporal, and opens into the transverse sinus. From Wordnik.com. [VII. The Veins. 3b. 5. The Sinuses of the Dura Mater] Reference
It arises from the trunk of the glossopharyngeal below the petrous ganglion, and joins the facial just after the exit of that nerve from the stylomastoid foramen. From Wordnik.com. [IX. Neurology. 5i. The Glossopharyngeal Nerve] Reference
It is thick above where the muscular fibers are wanting, and is firmly connected to the basilar portion of the occipital and the petrous portions of the temporal bones. From Wordnik.com. [XI. Splanchnology. 2c. The Pharynx] Reference
The branches to the vagus are two filaments which arise from the petrous ganglion, one passing to the auricular branch, and the other to the jugular ganglion, of the vagus. From Wordnik.com. [IX. Neurology. 5i. The Glossopharyngeal Nerve] Reference
A filament, the jugular nerve, passes upward to the base of the skull, and divides to join the petrous ganglion of the glossopharyngeal, and the jugular ganglion of the vagus. From Wordnik.com. [IX. Neurology. 7b. The Cervical Portion of the Sympathetic System] Reference
The cartilage lies in a groove between the petrous part of the temporal and the great wing of the sphenoid; this groove ends opposite the middle of the medial pterygoid plate. From Wordnik.com. [X. The Organs of the Senses and the Common Integument. 1d. 2. The Middle Ear or Tympanic Cavity] Reference
The fibers of the sensory root arise from the cells of the semilunar ganglion which lies in a cavity of the dura mater near the apex of the petrous part of the temporal bone. From Wordnik.com. [IX. Neurology. 5e. The Trigeminal Nerve] Reference
These cartilaginous ear-capsules, which are of an oval shape, fuse with the sides of the basilar plate, and from them arise the petrous and mastoid portions of the temporal bones. From Wordnik.com. [II. Osteology. 1. Development of the Skeleton] Reference
The petrous Ganglion (ganglion petrosum; inferior ganglion) is larger than the superior and is situated in a depression in the lower border of the petrous portion of the temporal bone. From Wordnik.com. [IX. Neurology. 5i. The Glossopharyngeal Nerve] Reference
It is separated from the middle fossa in and near the median line by the dorsum sellæ of the sphenoid and on either side by the superior angle of the petrous portion of the temporal bone. From Wordnik.com. [II. Osteology. 5d. The Interior of the Skull] Reference
Internally, the tympanic part is fused with the petrous portion, and appears in the retreating angle between it and the squama, where it lies below and lateral to the orifice of the auditory tube. From Wordnik.com. [II. Osteology. 5a. 4. The Temporal Bone] Reference
It passes forward through the hiatus of the facial canal, and runs in a sulcus on the anterior surface of the petrous portion of the temporal bone beneath the semilunar ganglion, to the foramen lacerum. From Wordnik.com. [IX. Neurology. 5g. The Facial Nerve] Reference
The inferior petrosal sinus (sinus petrosus inferior) (Fig. 570) is situated in the inferior petrosal sulcus formed by the junction of the petrous part of the temporal with the basilar part of the occipital. From Wordnik.com. [VII. The Veins. 3b. 5. The Sinuses of the Dura Mater] Reference
Destructiveness extends fully an inch under the surface of the middle lobe, along the petrous ridge of the temporal bone, and is manifested externally just behind the ear by the prominence of the mastoid process. From Wordnik.com. [Buchanan's Journal of Man, October 1887 Volume 1, Number 9] Reference
(occurring as hemorrhage from the ear came on, and subsiding with it), and extensive caries of the petrous bone, without sensation of pain or any indicative symptoms. From Wordnik.com. [Anomalies and Curiosities of Medicine] Reference
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