Term
Frontal bone
Supraorbital notch/ foramen |
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Definition
notch in the superior margin of the orbital arch for transmitting supraorbital vessels and nerve. |
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Term
Frontal bone
Coronal suture |
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Definition
a seam extending across the skull where the frontal bone and the parietal bones meet.
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Term
Parietal bone
Sagittal suture between parietal bones |
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Definition
| relating to or denoting the suture on top of the skull that runs between the parietal bones in a front to back |
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Term
Occipital bone
Occipital condyles |
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Definition
| Smooth knob on each side of the foramen magnum (largest opening into the cranial cavity) where the skull rests on the vertebral column |
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Term
Occipital bone
foramen magnum |
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Definition
| The largest opening into the cranial cavity , at the point where the occipital bone articulates with the vertebral column; allows passage of the spinal cord and vertebral arteries into the cranial cavity. |
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Term
Occipital bone
Lambdoidal suture |
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Definition
| the lambda-shaped (11th letter in the greek alphabet) seam or line of joining between the occipital and two parietal bones at the back part of the skull. |
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Term
Occipital bone
external occipital protuberance |
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Definition
| A prominence about the centre of the outer surface of the squamous portion of the occipital bone, giving attachment to the ligamentum nuchae. |
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Term
Temporal bone
styloid process |
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Definition
| a sharp spine that projects downward and forward from the inferior surface of the temporal bone just in front of the stylomastoid foramen and that is derived from cartilage of the second visceral arch |
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Term
Temporal bone
external auditory meatus |
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Definition
| passageway that leads from the outside of the head to the tympanic membrane, or eardrum membrane, of each ear. |
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Term
Temporal bone
mastoid process |
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Definition
| The mastoid process is located in the posterior portion of the temporal bone. It is one of the two projections situated behind the ear. The mastoid process provides an attachment for certain muscles of the neck. |
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Term
Temporal bone
internal auditory meatus |
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Definition
| The passage leading inward through the tympanic portion of the temporal bone, from the auricle to the tympanic membrane; it consists of a bony (inner) portion and a fibrocartilaginous (outer) portion, the cartilaginous external acoustic meatus. |
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Term
Temporal bone
mandibular fossa |
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Definition
| A deep hollow in the squamous portion of the temporal bone at the base of the zygomatic process in which the condyle of the mandible rests. Also called glenoid fossa. |
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Term
Temporal bone
squamous suture |
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Definition
| The Squamous Suture is a simple joint that unites the parietal and temporal bones of the skull. |
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Term
Temporal bone
zygomatic process of the temporal bone |
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Definition
The anterior process of the temporal bone that articulates with the temporal process of the zygomatic boneto form the zygomatic arch.
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Term
Temporal bone
carotid canal |
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Definition
| The carotid canal is an aperture in the temporal bone through which the internal carotid artery passes. |
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Term
Temporal bone
jugular foramen |
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Definition
| A passage between the temporal bone and the occipital bone, containing the internal jugular vein, the inferior petrosal sinus, the glossopharyngeal, vagus, and accessory nerves, and the meningeal branches of the ascending pharyngeal and occipital arteries. |
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Term
Temporal bone
foramen lacerum |
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Definition
an irregular aperture on the lower surface of the skull bounded by parts of the temporal, sphenoid, and occipital bones that gives passage to the internal carotid artery
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