| A | B |
|---|
| Angle of Mandible | The point where the body of the mandible meets the ramus. |
| Body of Mandible | The inferior part of the mandible which carries a bony upper rim (alveolar margin) to support the lower teeth |
| Bony Palate (Palatine Process of Maxilla) | Made up of the palatine process of the maxilla anteriorly and the horizontal plate of the palatine posteriorly |
| Condylar Process of Mandible | The posterior vertical process of the mandible |
| Coronal Suture | The suture separating the frontal bone from the parietal bones |
| Coronoid Process of the Mandible | A vertical projection of the mandible which provides attachment for the temporalis muscle |
| Crista Galli (Ethmoid) | A midline crest-like elevation of the ethmoid bone; divides the cribriform plate into two halves |
| Ethmoid Bone | A central bone of the nasal cavity. It includes a midline perpendicular plate, two sets of paired lateral elevations (superior and inferior conchae), and the ethmoidal air cells |
| External Auditory (Acoustic) Meatus | The external ear opening as seen in the skull; lies within the temporal bone |
| External Occipital Protuberance | A bony projection of the occipital bone between the lambdoidal suture and the foramen magnum |
| Foramen Magnum | The large hole on the underside of the skull through which the spinal cord and vertebral arteries pass |
| Frontal Bone | The bone underlying the forehead |
| Frontal Sinus | A paranasal sinus within the frontal bone |
| Greater Wing of the Sphenoid Bone | A lateral extension of the sphenoid bone which contributes to the wall of the orbit and the temporal fossa, a depression behind the orbit on each side |
| Groove of Middle Meningeal Artery | A groove formed by a large artery that supplies the meningeal coverings of the brain |
| Head of Mandible | The upper end of the condyle on the mandible |
| Internal Auditory (Acoustic) Meatus | A small opening of the interior of the skull which transmits the vestibulocochlear nerve from the inner ear, and the facial nerve to supply the muscles of facial expression, submandibular, sublingual, and lacrimal glands. |
| Internal Occipital Protuberance | A bony projection of the skull interior. It provides attachment for the falx cerebri and tentorium cerebelli (dural sheets that separate compartments within the skull interior) |
| Lacrimal Bone | Forms part of the medial wall of the orbit, as well as the upper medial wall of the nasolacrimal canal |
| Lambdoid Suture | The suture between the single occipital and paired parietal bones. It is shaped like the Greek letter lambda |
| Mandible | The bone of the lower jaw. It has an alveolar margin to support the teeth, paired condylar processes for articulation with the temporal bone, and paired coronoid processes |
| Mandibular Foramen | An opening on the medial side of the mandible. It transmits the inferior alveolar nerve and vessels. |
| Mandibular Notch | The notch between the condylar and coronoid processes of the mandible |
| Mastoid Process | A bony projection of the temporal bone which provides attachment for the sternocleidomastoid muscle |
| Maxilla | The bone of the medial cheek. It contributes to the inferior margin of the orbit and support the upper teeth. |
| Medial Pterygoid Plate | One of two vertical plates projecting from the sphenoid bone |
| Mental Foramen | A tiny opening at the front of the mandible which transmits the nerve for sensory supply to the chin |
| Mental Protuberance | A bony projection of the mandible which provides strength and stability to the mandible |
| Nasal Bone | A small bone which forms the superior and lateral margin of the piriform aperture of the bony nose |
| Nasolacrimal Canal | A bony canal which contain the nasolacrimal duct for the passage of tear fluid to the nasal cavity |
| Parietal Bone | A flat bone of the braincase (calvaria); articulates with the frontal, temporal, sphenoid, and occipital bones |
| Perpendicular Plate of the Ethmoid Bone | The vertical, midline part of the ethmoid bone |
| Petrous Part of Temporal Bone | The hard pard of the temporal bone; it houses the inner ear |
| Pituitary Fossa | The bony depression housing the pituitary gland |
| Ramus of Mandible | The vertically projecting part of the mandible which gives rise to the condylar and coronoid processes |
| Sigmoid Sinus | One of the dural venous sinuses of the skull interior |
| Squamous Part of the Temporal Bone | The flattened part of the temporal bone; contributes to the lateral wall of the skull |
| Supraorbital Notch | A small notch on the upper rim of the orbit; allows passage of the supraorbital nerve. |
| Temporal Line | A subtle system of lines on the frontal and parietal bones; they demarcate the margins of the attachment of the temporalis muscle |
| Transverse Sinus | One of the dural venous sinuses in the skull |
| Tympanic Plate of Temporal Bone | Forms the anterior wall and floor of the external auditory (acoustic) meatus |
| Zygomatic Process of Temporal Bone | An anterior projection of the temporal bone |
| Anterior Nasal (Piriform) Aperture | The front opening of the bony nasal cavity of the skull; it is pear shaped, hence the name piriform |
| Anterior Nasal Spine | A bony projection from the inferior margin of the anterior nasal (piriform) aperture in the midline; it is formed by the maxillae of each side |
| Canine | The dagger-like tooth between the lateral incisor and the first premolar; although small in humans, it is larger in other primates |
| Glabella | The region between the eyebrows |
| Incisors | Chisel-shaped teeth at the front of the mouth. They cut food into bite-sized pieces. Each of the four quadrants of the mouth had a lateral and a medial one |
| Inferior Nasal Concha | A bone which forms a scroll-like elevation on the lower lateral wall of the nasal cavity. It is covered with mucous membranes, which warm and moisten the air. They also produce turbulence in the airstream so that dust drops out of inhaled air |
| Inferior Orbital Fissure | A fissure in the posterior floor of the orbit. It is crossed by the maxillary division of the trigeminal nerve. |
| Inferior Orbital Margin | The lower rim of the margin of the orbit; it is mainly formed by the maxilla and zygomatic bone |
| Infraorbital Foramen | A small hole in the maxilla below the orbit. It transmits the infraorbital nerve which supplies the skin of the cheek below the orbit |
| Lambda | The point where the sagittal suture meets the lambdoid suture; corresponds with the posterior fontanel in infants |
| Lesser Wing of the Sphenoid Bone | The smaller medial extension of the sphenoid. It forms the medial margin of the superior orbital fissure and contributes to the anterior rim of the middle cranial fossa |
| Lower Teeth | The teeth inserted into the mandible; in an adult, each side has two incisors, one canine, two premolars, and three molars |
| Mental Tubercle | The lateral end of the mental protuberance |
| Middle Nasal Concha | One of the scroll-like elevations on the lateral wall of the nasal cavity; it is part of the ethmoid bone |
| Molars | Posterior teeth which provide grinding surfaces for reducing food to a paste; each quadrant of the mouth has four, the last of which is the wisdom tooth |
| Nasal Septum | The midline wall between the paired nasal cavities; comprised of a bony part (ethmoid and vomer bones) superiorly and posteriorly, and a septal cartilage anteriorly |
| Orbit | The bony cavity containing the eye, lacrimal gland, extra-ocular muscles, nerves, vessels, and orbital fat. It is bounded by the maxilla, frontal, sphenoid, ethmoid, and lacrimal bones |
| Premolars | Crushing teeth situated between the canine and the first molar; there are two in each of the four quadrants of the mouth |
| Sagittal Suture | The suture running down the midline of the skull between the parietal bones of each side |
| Superciliary Arch | An elevation of the frontal bone that extends laterally from the glabella |
| Superior Orbital Fissure | An opening which allows the oculomotor, trochlear, and abducens nerves, and branches of the opthalamic division of the trigeminal nerve, to enter the orbit from the middle cranial fossa |
| Supraorbital Margin | The superior margin of the orbit; it is formed by the frontal bone and is interrupted by the supraorbital notch for the supraorbital nerve |
| Upper Teeth | The teeth inserted into the maxilla; in an adult, each side has two incisors, one canine, two premolars, and three molars |
