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Chapter 6 II
Anatomy Vocab
43
Anatomy
11th Grade
10/10/2010

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Term
Frontal Bone
Definition
Forms forehead and Anterior part of Cranium
Term
Parietal Bones
Definition
Two bones form greater portion of Sides/Roof of cranial cavity.
Term
Temporal Bones
Definition
Two bones form the inferior sides of cranium/cranial floor.
Term
Zygomatic Arch
Definition
 Arch formed by temporal/Zygomatic bones.
Term
Mandibular Fossa
Definition
The depression in the temporal bone that articulates with the mandibular condyle.
Term
External Auditory Meatus
Definition
Canal in temporal bones that leads to middle ear. 
Term
Occipital Bone
Definition
 Forms Posterior part of cranium and portion of Cranium base.
Term
Foramen Magnum
Definition
Large hole in bone through which medula oblong./ vert. arteries and nerves pass.
Term
Sphenoid Bone
Definition
Situated at middle base of skull. Aka Keystone with Wings.
Term
Sella Turcia
Definition
 Depression on superior surface of Sphenoid body.
Term
Ethmoid Bone
Definition
Light/Spongy bone located in front portion on cranial floor. It orbits
Term
Nasal Bones
Definition
Form part of the bridge of the nose; paired bones.
Term
Maxillae
Definition
Unite to form upper jaw bone articulate with all facial bones except mandible
Term
Zygomatic bones
Definition
 2 bones; cheek bones; form prominence of cheeks.
Term
Mandible
Definition
 Lower jaw bone.
Term
Lacrimal Bone
Definition
Thin facial bones. Smallest facial bones.
Term
Palatine bones
Definition
 L shaped bones that form the posterior portion of hard pallet.
Term
Inferior Nasal Conchae
Definition
Scroll-like bones; project into nasal cavities.
Term
Vomer
Definition
Roughly triangular bones; forms lower and back of nasal septum.
Term
Hyoid Bone
Definition
Suspended bone; between neck, mandible and larynx.
Term
Intervertebral Foramina
Definition
Openings between vertebrae.
Term
Body
Definition
Thick disk-shaped front portion; weight bearing part of vertebrae.
Term
Vertebral Arch
Definition
Extends behind body; formed by short thick processes.
Term
Pedicles
Definition
A sharp slender projection; unites w/ Laminae; end in single spine proce
Term
Vertebral Foramen
Definition
Opening between vertebrae; allow the passage of a single nerve.
Term
Laminae
Definition
Flat parts; end in single spinous process.
Term
Atlas-
Definition
1st cervical vertebrae; supports head.
Term
Axis-
Definition
Second cervical vertebrae; has a body.
Term
Dens-
Definition
Peglike process. Makes a pivot on which atlas/head rotates.
Term
Thoracic Vertebrae-
Definition
Larger and stronger than c. vertebrae/ mid vertebrae
Term
Facets-
Definition
Articulate thoracic vert. to ribs (not 11th and 12th).
Term
Lumbar Vertebrae-
Definition
Largest strongest; Adapted for attachment of large back muscles.
Term
Sacrum-
Definition
Triangular bone; Union of 5 sacral vertebrae; Strong foundation pelvic girdle
Term
Sacral Foramina-
Definition
Anterior/posterior sacrum sides; four pair; nerves into legs.
Term
Coccyx-
Definition
Tailbone. Articulates superiorally to sacrum
Term
Thorax-
Definition
Entire chest; bony cage formed by sternum, ribs, etc.
Term
Sternum-
Definition
Breastbone.
Term
Manubrium-
Definition
Upper portion of the sternum
Term
Costal Cartilage-
Definition
Strip of hayline cart. that articulates 1-7 ribs w/ sternum.
Term
True Ribs-
Definition
1-7 ribs attached anteriorally to sternum
Term
False Ribs-
Definition
remaining 5 pair of ribs; don't attach to sternum.
Term
Floating Ribs-
Definition
11-12 ribs; attach only posteriorally to Thoracic vert.
Term
Intercostal Spaces-
Definition
Spaces between ribs occupied by intercostal muscles/blood vessels/ nerves.
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