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Head & Neck ana Ch.3

Skeletal System

QuestionAnswer
Aperture opening or orifice in bone
Arch prominent bridgelike bony structure
Articulation area where the bones are joined to each other
Bones mineralized structures of the body that protect internal soft tissues and serve as the biomechanical basis for movement
Canal opening in bone that is long, narrow, and tubelike
Condyle oval, bony prominence typically located at articulations
Cornu small hornlike prominence
Crest roughened border or ridge on the none surface
Eminence tubercle or rounded elevation on a bony surface
Fissure opening in bone that is narrow and cleflike
Foramen/Foramina short, windowlike opening in bone
Head rounded surface projecting from a bone by a neck
Incisura indentation or notch at the edge of the bone
Joint site of a junction or union between two or more bones
Line straight, small ridge of bone
Meatus opening or canal in the bone
Ostium/ostia small opening in bone
Perforation abnormal hole in a hollow organ, such as in the wall of a sinus
Plate flat structure of bone
Primary sinusitis inflammation of the sinus
Process general term for any prominence on a bony surface
Secondary sinusitis inflammation of the sinus related to another source
Spine abrupt, small prominence of bone
Sulcus/sulci shallow depression or groove such as that on the bony surface
Suture generally immovable articulation in which bones are joined by fibrous tissue
Tubercle eminence or small, rounded elevation on the bony surface
Tuberosity large, often rough prominence on the surface of bone
The skull consists of _____ bones 22, not including the small bones of the middle ear
What structure is most flexible in infants sutures
Cranium structure that is formed by the cranial skull bones and includes the occipital, frontal, parietal, temporal, sphenoid, and ethmoid bones. It is the portion housing the brain
All skull bones are immovable except for which one the temporomandibular joint
What consists of the braincase the cranium and face
What four cranial bones are visible when viewed from above the frontal, both parietals, and occipital bones
Coronal Suture the suture between the frontal and parietal bones
Sagittal Suture the suture between the paired parietal bones
Lambdoidal Suture the suture between the occipital bone and both parietal bones that forms the inverted "V"
Which bones are visible from the anterior (front) view the frontal, ethmoid, vomer, sphenoid and the mandible bones
Orbit eye cavity, which contains and protects the eyeballs
Orbital Walls walls of the orbit composed of portions of the frontal, ethmoid lacrimal, maxillary, zygomatic and sphenoid bones
Orbital Apex deepest portion of the orbit composed of portions of the sphenoid and palatine bones
Optic Canal canal in the orbital apex between the roots of the lesser wing of the sphenoid bone
What nerve and artery pass through the optic canal to reach the eyeball the second cranial nerve/optic nerve and the ophthalmic artery
Superior Orbital Fissure fissure between the greater and lesser wings of the sphenoid bone that transmits structures from the cranial cavity to the orbit
Inferior Orbital Fissure fissure between the greater wing of the sphenoid bone and maxilla that carries the infraorbital and zygomatic nerves, as well as the infraorbital artery and inferior ophthalmic vein
What does the inferior orbital fissure connect the orbit with the infratemporal and pterygopalatine fossae
Nasal Cavity cavity of the nose
Piriform Aperture anterior opening of the nasal cavity
Which bones form the nasal cavity the paired nasal bones
Which bones form the lateral boundaries of the nasal cavity the maxillae
Nasal Conchae projecting structures that extend inward from the lateral walls of the nasal cavity
Which bone forms the superior and middle nasal conchae the ethmoid bone
Nasal Meatus groove beneath each nasal concha that contains openings for communication with the paranasal sinuses or nasolacrimal duct
Nasal Septum vertical partition of the nasal cavity
Anteriorly, what structures form the nasal septum the nasal septal cartilage and the perpendicular plate of the ethmoid bone
Which bone forms the posterior portions of the nasal septum the vomer
Temporal Lines two separate parallel ridges, superior and inferior, on the lateral surface of the skull
Coronal Suture suture between the frontal and parietal bones
Squamosal Suture suture between the temporal and parietal bones
Temporal Fossa fossa on the lateral surface of the skull that contains the body of the temporalis muscle
Infratemporal Fossa fossa inferior to the temporal fossa and infratemporal crest on the greater wing of the sphenoid bone
Pterygopalatine Fossa fossa deep to the infratemporal fossa and between the pterygoid process and maxillary tuberosity
Zygomatic Arch arch formed by the union of the temporal process of the zygomatic bone and zygomatic process of the temporal bone
Temporozygomatic suture suture between the temporal and zygomatic bones
Temporomandibular joint articulation between the temporal bone and mandible that allows for movement of the mandible
The hard palate if formed by which structures the two palatine processes of the maxillae and the two horizontal plates of the palatine bones
Median Palatine Suture a midline articulation between the two palatine processes of the maxillae and between the horizontal plates of the palatine bones
Transverse Palatine Suture an articulation between the two palatine processes of the maxiallae and the two horizontal plates of the palatine bones
Posterior Nasal Apertures posterior openings of the nasal cavity
Ptergoid Canal small canal at the superior border of each posterior nasal aperture
Ptergopalatine Fossa fossa deep to the infratemporal fossa and between the ptergoid process and maxillary tuberosity
Ptergoid process portion of the sphenoid bone that forms the lateral borders of the posterior nasal apertures
Medial Ptergoid plate portion of the ptergoid process
Lateral Ptergoid Plate portion of the ptergoid process
Ptergoid fossa fossa between the medial and lateral pterygoid plates of the sphenoid bone
Hamulus process of the medial pterygoid plate of the sphenoid bone
Foramen Ovale foramen in the sphenoid bone for the mandibular division of the trigeminal or fifth cranial nerve
Foramen Spinosum foramen in the sphenoid bone for the middle meningeal artery
Spine of the sphenoid bone spine located at the posterior extremity of the sphenoid bone
Foramen Lacerum foramen among the sphenoid, occipital, and temporal bones that is filled with cartilage
Carotid Canal canal in the temporal bone that carries the internal carotid artery
Styloid Process bony projection of the temporal bone that serves as an attachment for muscles and ligaments
Stylomastoid foramen foramen in the temporal bone that carries the facial or seventh cranial nerve
Jugular Foramen foramen between the occipital and temporal bones that carries the internal jugular vein and ninth, tenth, and eleventh cranial nerves
Foramen Magnum foramen in the occipital bone that carries the spinal cord, vertebral arteries, and eleventh cranial nerve
cribriform plate horizontal plate of the ethmoid bone that is perforated with foramina for the olfactory nerves
foramen rotundum foramen in the sphenoid bone that carries the trigeminal or fifth cranial nerve
hypoglossal canal canal in the occipital bone that carries the twelfth cranial nerve
internal acoustic meatus bony meatus in the temporal bone that carries the seventh and eighth cranial nerves
List the cranial bones occipital, frontal, sphenoid, ethmoid, paired parietal, and temporal bones
Occipital Condyles projections of the occipital bone that articulate with lateral masses of the first cervical vertebra
Basilar Portion a four-sided plate anterior to the foramen magnum
Pharyngeal Tubercle a midline projection on the stout basilar portion
Jugular Notch of the Occipital Bone occipital or medial portion of the jugular foramen
Frontal Sinuses paired paranasal sinuses located internally in the frontal bone
Supraorbital Ridges ridge on the frontal bone located over the superior portion of the orbit
Supraorbital Notch notch on the frontal bone located on the medial portion of the supraorbital ridge and is where the supraorbital artery and nerve travel from the orbit to the forehead
Zygomatic Process of the Frontal Bone process lateral to the orbit
Lacrimal Fossa fossa of the frontal bone that contains the lacrimal gland, located just inside the lateral portion of the supraorbital ridge.
Temporal Bones paired cranial bones that form the lateral walls of the skull
Squamous Portion of the Temporal Bone portion that forms the braincase and portions of the zygomatic arch and temporomandibular joint
Tympanic Portion of the Temporal Bone portion that forms most of the external acoustic meatus
Petrous Portion of the Temporal Bone inferior portion of the bone that contains the mastoid process and air cells
What are the three portions of the Temporal Bone Squamous, Tympanic and Petrous
What landmarks are located within the Squamous portion of the Temporal Bone the articular fossa, articular eminence, and postglenoid process
What landmarks are located within the tympanic portion of the temporal bone external acoustic meatus, and petrotympanic fissure
What landmarks are located within the petrous portion of the temporal bone mastoid process, mastoid air cells, mastoid notch, styloid process, stylomastoid foramen, carotid canal, and jugular notch of the temporal bone
petrotympanic fissure fissure between the tympanic and petrosal portions of the temporal bone, just posterior to the articular fossa, through which the chorda tympani nerve emerges
mastoid process area on the petrous portion of the temporal bone that contains the air cells and on which the cervical muscles attach
mastoid air cells air spaces in the mastoid process of the temporal bone that communicate with the middle ear cavity
mastoid notch notch on the mastoid process of the temporal bone
styloid process bony projection of the temporal bone that serves as an attachment for muscles and ligaments
stylomastoid foramen foramen in the temporal bone that carries the facial or seventh nerve
carotid canal canal in the temporal bone that carries the internal carotid artery
jugular notch of the temporal bone temporal or lateral portion of the jugular foramen
Body of the Sphenoid Bone middle portion of the bone containing the sphenoidal sinuses
Sphenoidal Sinuses paired sinuses located in the body of the sphenoid bone
Lesser Wing of the Sphenoid Bone anterior process of the body of the sphenoid bone
Greater Wing of the Sphenoid Bone posterolateral process of the body of the sphenoid bone
Spine of the Sphenoid Bone spine located at the posterior extremity of the sphenoid bone
Infratemporal Crest crest that divides each greater wing of the sphenoid bone into temporal and infratemporal surfaces
Perpendicular Plate midline vertical plate of the ethmoid bone
Ethmoidal Sinuses paired paranasal sinuses located in the ethmoid bone, which are also called ethmoid air cells
Crista Galli vertical midline continuation of the perpendicular plate of the ethmoid bone into the cranial cavity
Orbital Plate of the Ethmoid Bone plate that forms most of the medial orbital wall
Nasolacrimal Duct duct formed at the junction of the lacrimal and maxillary bones that drains the lacrimal fluid or tears
Frontal Process of the Zygomatic Bone process that forms a portion of the orbital wall
Temporal Process of the Zygomatic Bone process that forms a portion of the zygomatic arch
Maxillary Process of the Zygomatic Bone process that forms a portion of the infraorbital rim and orbital wall
Infraorbital Rim inferior rim of the orbit
Horizontal Plates of the Palatine Bones plates that form the posterior portion of the hard palate
Vertical Plates of the Palatine Bones plates that form a portion of the lateral wall of the nasal cavity and orbital apex
Greater Palatine Foramen foramen in the palatine bone that carries the greater palatine nerve and blood vessels
Lesser Palatine Foramen foramen in the palatine bone that transmits the lesser palatine nerve and blood vessels
Maxillae upper jaw that consists of two maxillary bones
Body of the Maxilla portion of the maxilla that contains the maxillary sinus
Maxillary Sinuses paranasal sinuses in each body of the maxilla
Frontal Process of the Maxilla process that forms a portion of the orbital rim
Inferior Orbital Fissure fissure between the greater wing of the sphenoid bone and maxilla that carries the ingraorbital and zygomatic nerves, as well as the infraorbital artery and inferior ophthalmic vein
Infraorbital Sulcus groove in the floor of the orbital surface
Infraorbital Canal canal off the infraorbital sulcus that terminates on the surface of the maxilla as the infraorbital foramen
Infraorbital Foramen foramen of the maxilla that transmits the infraorbital nerve and blood vessels
Zygomatic Process of the Maxilla process that forms a portion of the infraorbital rim
Palatine Process of the Maxilla paired processes that articulate with each other and form the anterior portion of the hard palate
Incisive Foramen foramen in the maxilla that carries branches of the right and left nasopalatine nerves and blood vessels and is marked by the incisive papilla
Incisive Papilla bulge of tissue on the hard palate over the incisive foramen
Maxillary Tuberosity elevation on the posterior aspect of the maxilla that is perforated by the posterior superior alveolar foramina
Posterior Superior Alveolar Foramina foramina on the maxillary tuberosity that carry the posterior superior alveolar nerve and blood vessels
Mental Protuberance mandibular bony prominence of the chin
Symphysis midline articulation where bones are joined by fibrocartilage such as the midline ridge on the mandible that fuses together in early childhood
Mental Foramen foramen between the apices of the mandibular first and second premolars that transmits the mental nerve and blood vessels
Body of the Mandible horizontal portion of the mandible
Ramus plate of the mandible that extends superiorly from the body of the mandible
Coronoid Process anterior superior projection of the ramus of the mandible
Coronoid Notch notch in the anterior border of the ramus
External Oblique Line crest on the lateral side of the mandible, where the ramus joins the body
Angle of the Mandible angle at the intersection of the posterior and inferior borders of the ramus
Condyle of the Mandible projection of bone from the ramus of the mandible that participates in the temporomandibular joint
Articulating Surface of the Condyle portion of the head of the condyle that articulates with the temporal bone at the temporomandibular joint
Mandibular Notch notch located on the mandible between the condyle and coronoid porcess
Genial Tubercles midline bony projections or the mental spines on the inner aspect of the mandible
Retromolar Triangle portion of the mandibular alveolar process just posterior to the most distal mandibular molar that is covered by the retomolar pad
Mylohyoid Line line on the inner aspect of the mandible
Sublingual Fossa fossa on the medial surface of the mandible, above the mylohyoid line, that contains the sublingual salivary gland
Submandibular Fossa fossa on the medial surface of the mandible, below the mylohyoid line, that contains the submandibular salivary gland
Mandibular Foramen foramen of the mandible that allows the inferior alveolar nerve and blood vessels to exit or enter the mandibular canal
Mandibular Canal canal in the mandible where the inferior alveolar nerve and blood vessels travel
Lingula bony spine overhanging the mandibular foramen
Mylohyoid Groove groove on the mandible where the mylohyoid nerve and blood vessels travel
Articulating Surface of the condyle portion of the head of the condyle that articulates with the temporal bone at the temporomandibular joint
Ptergoid Fovea depression on the anterior surface of the condyle of the mandible
Paranasal Sinuses paired, filled cavities in bone that include the frontal, sphenoidal, ethmoidal, and maxillary sinuses
Paranasal Sinusitis a condition in which the mucous membranes of the sinuses can become inflamed and congested with mucus
Secondary Sinusitis inflammation of the sinuses from another source, such as an infection of the adjacent teeth
Frontonasal Duct a constricted canal that allows each frontal sinus to communicate with and drain into the nasal cavity to the middle nasal meatus
Cervical Vertebrae vertebrae in the vertebral column between the skull and thoracic vertebrae
Vertical Foramen central foramen in the vertebrae for the spinal cord and associated tissues
Transverse Foramen foramen on the transverse processes of each cervical vertebra that carries the vertebral artery
Transverse Process lateral projections of the cervical vertebrae
Atlas first cervical vertebra, which articulates with the occipital bone
Lateral Masses lateral portions of the first cervical vertebra where it articulates with the occipital bone above and the axis below
Anterior Arch arch of the atlas or first cervical vertebra
Posterior Arch arch on the first cervical vertebra
Superior Articular Processes processes from a vertebra that allow articulation with the vertebra above
Inferior Articular Processes processes of the first and second cervical vertebrae that allow articulation with the vertebrae below
Axis second cervical vertebra, which articulates with the first and third cervical vertebrae
Dens odontoid process of the second cervical vertebra
Hyoid Bone bone suspended in the neck that allows the attachment of many muscles
Body of the Hyoid Bone anterior midline portion of the hyoid bone
Greater Cornu pair of projections from the sides of the body of the hyoid bone
Lesser Cornu pair of projections of the hyoid bone
Created by: dyoung07 on 2009-06-15



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