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104 Cards in this Set
- Front
- Back
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Bones in adult skeleton
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206
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two main divisions of skeleton
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axial
appendicular |
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three components of axial skeleton
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skull
vertebral column thoracic cage |
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two divisions of skull
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cranium
facial bones |
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What is the bone of the forehead?
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frontal
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What cavities hold the eyeballs?
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orbits
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???What two large openings lie within these cavities?
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superior and inferior orbital fissures
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Synonym for brow ridges
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supercilliary arches
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What bones form the bridge of the nose?
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nasal bones
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What bones form the upper jaw, the lateral walls of the nasal cavity and the floor of the orbits
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maxillae
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What cavities lie within these bones inferior to the orbits
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infraorbital foramina
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What bone forms the lower jaw?
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Mandible
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What prominence on the mandible forms the chin?
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Mental protuberance
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what is the cavity of the nose?
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nasal cavity
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what prominence marks the nasal cavities anterior, inferior border
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anterior nasal spine
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What structure divides the nas calvity in left and right halves?
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nasal septum
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What scroll-shaped bones are visible on the inferior lateral walls of this cavity?
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inferior nasal conchae
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What is the bump on the midline of the posterior side of the skull?
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external occipital protuberance
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What movable articulation can be palpated just anterior to the external auditory canal?
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temporomandibular joint
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What bump on the bone occurs posterior to the ear?
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mastoid process
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what bone separates the cranial cavity and nasal cavity?
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ethmoid
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What two bones form the hard palate?
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maxilla
palatine |
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What are sutures?
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immovable fibrous joints between cranial bones
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What suture extends across the superior surface of the skull along a coronal plane?
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coronal suture
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What suture extends like an arc across the posterior surface of the skull?
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lambdoid suture
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What suture lies along the midline superiorly?
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sagittal suture
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What suture lies laterally between the parietal bone and temporal bone on each side?
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squamosal suture
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What bones may be found within sutures?
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wormian bones
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What is a synonym for "skullcap"
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Calvaria
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What bone forms part of the calvaria, the forehead, and the roof of the orbits?
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frontal bone
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What is a synonym for the brow ridges?
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supercilliary arches
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What cavities lie within the frontal bone?
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frontal sinuses
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What part of the temporal bone holds the middle and inner ear?
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petrous region
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What opening occurs in the petrous region for blood vessels and nerves?
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internal auditory canal
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What is the posterior region of the temporal bone?
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mastoid region
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What prominence in the mastoidregion lies posterior to the ear, serves as the insertion for the sternocleidomastoid, and contains air cells?
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mastoid process
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What region of the temporal bone surrounds the bony, external opening of the ear?
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tympanic region
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What thine point of bone in tympanic region serves as an attachment for several hyoid and tongue muscles?
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styoid process
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What opening does the facial nerve pass through on the inferior surface of the skull?
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stylomastoid foramen
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What opening does the internal carotid artery pass through here?
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carotid canal
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What region of the temporal bone forms the superior, lateral, flat area of the bone?
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squamous region
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What bony process projects anteriorlyfrom the flat region?
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zygomatic process
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what articulates with the mandible?
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mandibular fossa
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What is the opening for the ear?
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external auditory canal
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What is the flat, posterior region of the occipital bone?
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squamous region
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what region of the occipital bone forms the base of the cranium?
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basilar region
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What is the large, circular opening for the spinal cord?
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foramen magnum
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What are the smooth, rounded projections on the left and right sides of the foramen magnum?
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occipital condyles
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what is the opening for cranial nerve XII
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hypoglossal canal
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What superior, horizontal line projects laterally from the external occipital protuberance?
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superior nuchal line
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What is the thick, medial part of the sphenoid?
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body
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What cavities lie within the sphenoid?
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sphenoid sinuses
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What projections of the sphenoid lie superior to the superior orbital fissure?
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lesser wings
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What projection of the sphenoid lie inferior to the superior orbital fissure and can be seen in a lateral view of the skull?
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greater wings
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Within the sphenoid what is the depression holding the pituitary gland?
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hypophyseal fossa
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What is the bony enclosure of the hypophyseal fossa?
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sella turcica
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Through what opening of the sphenoid does the optic nerve pass?
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optic foramen
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What three foramina penetrate the greater wings of the sphenoid?
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foramen rotundum
foramen ovale foramen spinosum |
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What projections of the sphenoid provide attachment surfaces for some muscles that move the lower jaw and soft palate?
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pterygoid processes
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What is the superior, midsagittal elevation of the ethmoid?
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crista galli
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What horizontal structure of the ethmoid separates the cranial and nasal cavities?
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cribriform plate
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through what openings do the olfactory nerve pass?
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cribriform foramina
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what parts of the ethmoid hold the cavities?
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lateral masses
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What part of the ethmoid forms the medial wall of the orbits?
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orbital plate
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What scroll-like extensions of the ethmoid project medially into the nasal cavity?
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superior and middle nasal conchae
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what are the three cranial fossae?
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anterior
middle posterior |
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What is a synonym for zygomatic bones?
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cheekbones
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What bony projections of the zygomatic bones contribute to the zygomatic arches?
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temporal process
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What other processes articulate the zygomatic bone with surrounding bones?
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maxillary process
frontal process |
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where are the lacrimal bones located?
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anteromedial orbit
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What structures allow the passage of the nasolacrimal duct
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lacrimal groove
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The nasal bones form what facial feature
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bridge of nose
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The vomer helps to form what structure within the nasal cavity?
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nasal septum
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What three nasal conchae are found on each side of the nasal cavity
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superior and middle nasal conchae
inferior nasal conchae |
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What is a synonym for the nasal conchae?
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turbinates
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What is the overall shape of the palatines
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L-shape
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What portion of the palatines forms the posterior third of the hard palette?
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horizontal plate
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What part of the palatine forms the posterior, lateral wall of the nasal cavity?
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perpendicular plate
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What part of the palatine forms a small part of the floor of the orbit?
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orbital process
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What part of the maxilla forms the floor of the orbit?
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orbital surface
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What opening within the maxilla do the infraorbital artery and nerve pass through?
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infraorbital foramen
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What part of the maxilla holds the upper teeth
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alveolar process
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What part of the maxilla forms the anterior two thirds of the hard palatte?
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palatine process
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What is the horizontal portion of the mandible?
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body
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What are the ascending, posterior regions of the mandible
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Rami
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What part of the mandible holds the lower teeth?
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alveolar process
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What are the two corners of the mandibles?
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angles
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What opening lies on the anterolateral surface of the body of the mandible?
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mental foramen
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What opening within the mandible lies on the posterior, medial side?
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mandibular foramen
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What process of the mandible articulates witht he temporal bone?
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condylar process
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What is the smooth, round portion of the condylar procedds
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mandibular condyle
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What is the joint between the mandible and temporal bone?
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temporomandibular joint
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what process of the mandible does the temporalis insert on?
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coronoid process
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what is the u-shaped depression between the two mandibular processes?
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mandibular process
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What bones make up the roof of the nasal cavity?
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ethmoid
frontal sphenoid |
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what bones make up the floor of the nasal cavity?
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Maxillae
palatine |
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what bones form the lateral walls of the nasal cavity?
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ethmoid
maxillae inferior nasal conchae palatine lacrimal |
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list the groups of paranasal sinuses
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ethmoid
frontal maxillary sphenoid |
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list the bones that form the orbit
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frontal
maxilla palatine zygomatic sphenoid ethmoid lacrimal |
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What is the collective term for the tiny bones of the middle ear?
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auditory ossicles
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list the tiny bones from lateral to medial of the auditory ossicles
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malleus
incus stapes |
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What is the anatomical term for the softspots in a baby's skull?
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fontanels
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What is the function of fontanels?
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deformation in birth canal
skull growth |
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Lis the four fontanels
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anterior
posterior sphenoid mastoid |
