PIMA BIO130 Word Scramble
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Question | Answer |
Sutures | Immovable joints between skull bones |
Squamous suture | Line of articulation along the top curved edge of the temporal bone |
Coronal suture | Joint between the parietal bones and frontal bone |
Lambdoid suture | Joint between the parietal bones and occipital bone |
Sagittal suture | Joint between the right and left parietal bones |
Fontanels | "Soft spots" where ossification is incomplete at birth; allow some compression of the skull during birth; also important in determining the position of the head before delivery; six such areas located at angles of the parietal bones |
Anterior (or frontal) fontanel | At the intersection of the sagittal and coronal sutures (juncture of the parietal bones and frontal bone); diamond shaped; largest of the fontanels; usually closed by 11.2 years of age |
Posterior (or occipital) fontanel | At the intersection of the sagittal and lambdoid sutures (juncture of the parietal bones and occipital bone); triangular; usually closed by the second month |
Sphenoid (or anterolateral) fontanel | At the juncture of the frontal, parietal, temporal, and sphenoid bones |
Mastoid (or posterolateral) fontanel | At the juncture of the parietal, occipital, and temporal bones; usually closed by the second year |
Air sinuses | Spaces. or cavities, w/in bones; those that communicate with the nose are called paranasal sinuses (frontal, sphenoidal, ethmoidal, and maxillary); mastoid cells communicate with the middle ear rather than the nose, not included among the paranasal sinus |
Frontal bone forms what part of orbit | Roof of the orbit |
Ethmoid bone forms what part of orbit | Medial wall |
Lacrimal bone forms what part of orbit | Medial wall |
Sphenoid bone forms what part of orbit | Lateral wall |
Zygomatic bone forms what part of orbit | Lateral wall |
Maxilla forms what part of orbit | Floor |
Palatine bone forms what part of orbit | Floor |
Nasal septum formed by | Partition in the midline of nasal cavity; separates the cavity into right and left halves |
Perpendicular plate of the ethmoid bone forms what part of nasal septum | Forms the upper part of the septum |
Vomer forms what part of nasal septum | Forms the lower, posterior part of the septum |
Cartilage forms what part of nasal septum | Forms the anterior part of the septum |
Sutural (wormian) bones | Small islets of bone in sutures; vary greatly from person to person |
Malleus, incus, stapes | Tiny bones, referred to as auditory ossicles, in the middle ear cavity in the temporal bones; resemble, respectively, a mini hammer, anvil, and stirrup |
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Jgiron6994
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