Temporal Bone Anatomy Pdf

From Wikipedia, the free encyclopedia. Its exact etymology is unknown. In other projects Wikimedia Commons. The neurocranium of the skull. Lateral surface Orbital lamina Uncinate process Medial surface Supreme nasal concha Superior nasal concha Superior meatus Middle nasal concha Middle meatus.

Temporal bone anatomy pdf

Articular tubercle Suprameatal triangle Mandibular fossa Petrotympanic fissure Zygomatic process. The petrous portion is among the most basal elements of the skull and forms part of the endocranium. Its medial half is marked by a sulcus, which forms, with a corresponding sulcus on the occipital bone, the channel for the inferior petrosal sinus.

Plates Cribriform plate Crista galli Olfactory foramina Perpendicular plate. The zygomatic process is a long, arched process projecting from the lower region of the squamous part and it articulates with the zygomatic bone. The posterior surface forms the anterior part of the posterior cranial fossa of the base of the skull, and is continuous with the inner surface of the mastoid portion. Squamous part Frontal suture Frontal eminence external Superciliary arches Glabella foramina Supraorbital foramen Brow ridge Foramen cecum Zygomatic process internal Sagittal sulcus Frontal crest.

The inferior surface is rough and irregular, and forms part of the exterior of the base of the skull. The posterior angle is intermediate in length between the superior and the anterior. Outer surface of petromastoid part. Zygomaticotemporal suture. Position of temporal bone shown in green.

Holt-Saunders International. Squamous part Articular tubercle Suprameatal triangle Mandibular fossa Petrotympanic fissure Zygomatic process.

Structure of temporal bone left. Or it may relate to the pulsations of the underlying superficial temporal artery, telecharger pdf creator windows 7 64 bits gratuit marking the time we have left here. Petrous part of the temporal bone.

It separates zygomatic bone and zygomatic process of temporal bone. It separates parietal bone and squama portion of temporal bone. It separates sphenoid bone and squama portion of temporal bone.

The base is fused with the internal surfaces of the squamous and mastoid parts. It separates occipital bone and mastoid portion of temporal bone. Foramen magnum Basion Opisthion. Outer surface of tympanic ring. The skull is thin in this area and presents a vulnerable area for a blow from a battle axe.

Posteroinferior to the squamous is the mastoid part. The American Journal of Otology. It is one of the densest bones in the body.

Temporal bone anatomy pdf

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Petrous part of the temporal bone Left temporal bone. The lower seven cranial nerves and the major vessels to and from the brain traverse the temporal bone.

Wikimedia Commons has media related to Temporal bone. Pharyngeal tubercle Clivus. It transmits the facial and acoustic nerves and the internal auditory branch of the basilar artery.

Superior orbital fissure Anterior clinoid process Optic canal. The tympanic part is relatively small and lies inferior to the squamous part, anterior to the mastoid part, and superior to the styloid process.

Petrous part of the temporal bone

The squamous part is the largest and most superiorly positioned relative to the rest of the bone. Ethmoidal notch Fossa for lacrimal gland Trochlear fovea Frontal sinus Frontonasal duct.

Temporal bone anatomy pdfTemporal bone anatomy pdf

The petrous part of the temporal bone is pyramid-shaped and is wedged in at the base of the skull between the sphenoid and occipital bones. Cribriform plate Crista galli Olfactory foramina Perpendicular plate. Ethmoid sinus ethmoidal foramina Posterior Anterior. Frontal suture Frontal eminence external Superciliary arches Glabella foramina Supraorbital foramen Brow ridge Foramen cecum Zygomatic process internal Sagittal sulcus Frontal crest.