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Head & Neck Terms
UC MED 2015
89
Medical
Graduate
09/14/2011

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Term
linear growths of hair overlying the the superior orbital margin
Definition
eyebrows
Term
This is the superiorly arched margin of bone forming the superior border of the orbit. The lateral aspect of the arch forms a sharp, prominent edge, while the medial portion of the arch is blunt and rounded. It divides the squamous portion of the frontal bone from the horizontal orbital plate
Definition
superior orbital margin
Term
Mobile, musculofibrous folds that overlie that eyeball
Definition
eyelids
Term
the prominent ridges that extend laterally and above on each side of the eyebrows
Definition
superciliary arches
Term
the anatomic name for the separation between the upper and lower eyelids
Definition
palpebral fissure
Term
where the upper and lowers eyelids meet
Definition
medial and lateral angles (canthi)
Term
the prominence of the external nose
Definition
apex
Term
external nose where the forehead begins
Definition
root of the nose (bridge)
Term
where the nasal cavities open anteriorly
Definition
nares
Term
separates the right and left airway in the nose
Definition
nasal septum
Term
lateral surface of the external nose that flares out to form a rounded eminence around the nostril
Definition
ala (wing) of nose
Term
marks the beginning of the transitional zone of the lip between the skin and mucous membrane of the lip
Definition
vermillion border of the lip
Term
lateral junctions of the lips
Definition
labial commisure
Term
the angle between the lips, medial to the commisure that increases as the mouth opens and decreases as it closes
Definition
angle of the mouth
Term
the cheeks is separated by the lips from this....it runs obliquely between the ala of the nose and the angle of the mouth....grooves are easiest to see when person is smiling
Definition
nasolabial sulcus
Term
musculofibrous folds of the lips continue to this...it contains the buccinater muscle and the buccal fat-pad
Definition
cheek
Term
the lower lips is separated by this by the mentolabial sulcus...where the secondary sex characteristic of males (beard) is found
Definition
mental protuberance (chin)
Term
white of the eye
Definition
sclera
Term
the anterior transparent part of the eye
Definition
cornea
Term
in a lateral view most of the visible part of the eye protrudes through this
Definition
palpebral fissure
Term
The transition zone, about 1.5 mm wide, between the conjunctiva and sclera on the one hand, and the cornea on the other
Definition
corneoscleral junction (corneal limbus)
Term
the dark circular opening through which light enters the eyeball
Definition
pupil
Term
a circular pigmented diaphragm, surrounding the pupil
Definition
iris
Term
one of many stiff hairs like cilia growing in double or triple rows along the border of the eyelids in front of a row of ciliary glands that are in front of a row of meibomian glands.
Definition
eyelashes (cilia)
Term
Either of two folds of skin and muscle that can be closed over the exposed portion of the eyeball.
Definition
superior and inferior palpebra (eyelid)
Term
the slit-like space between the teeth and gingivae(gums) and the lips and the cheeks
Definition
oral vestibule
Term
the space between the upper and lower dental arches or arcades (maxillary and mandibular alveolar arches and the teeth they bear).
Definition
oral cavity proper
Term
mobile, musculofibrous folds surrounding folds surrounding the mouth, extending from the nasolabial sulci and nares laterally and superiorly to the mentolabial sulcus inferiorly
Definition
lips
Term
free-edged folds of mucous membrane in the midline, extending from the vestibular gingiva to the mucosa of the upper and lower lips
Definition
labial frenula
Term
composed of fibrous tissue covered with mucous membrane found in the mouth
Definition
gingivae (gums)
Term
vaulted space most filled by the tongue; the anterior two-thirds pf the palate has a bony skeleton formed by the palatine process of the maxillae and horizontal planes plates of the palatine bone
Definition
hard palate
Term
the movable posterior third of the palate and it is suspended from the posterior body of the hard palate
Definition
soft palate
Term
made from the soft palate in the curved free margin...hanging conical process
Definition
uvula
Term
the anterior of the two folds of mucous membrane on either side of the oropharynx, enclosing the palatoglossal muscle
Definition
palatoglossal arch
Term
the posterior of the two folds of mucous membrane on either side of the oropharynx, enclosing the palatopharyngeal muscle
Definition
palatophatyngeal arch
Term
the space between the cavity of the mouth and the pharynx
Definition
fauces
Term
masses of lymphoid tissue, one one each side of the oropharynx
Definition
palatine tonsils
Term
attached to the posterior portion, extending between the mandible, hyoid, nearly vertical posterior part of the tongue
Definition
root of tongue
Term
the anterior, approximately two thirds of the tongue between root and apex
Definition
body of tongue
Term
the anterior end of the body of the tongue, which rests against the incisor teeth
Definition
apex (tip)
Term
the dorsum of the tongue is characterized by this V-shaped groove, the angle of which points posteriorly to the foramen cecum
Definition
terminal sulcus
Term
the small pit, frequently absent, is a non-functional remnant of the proximal part of the embryonic thyroglossal duct from which the thyroid gland developed
Definition
foramen cecum
Term
divides the anterior part of the tongue into right and left parts
Definition
midline groove
Term
the lymphoid nodules are collectively known as this...it has an irregular cobblestone appearance
Definition
lingual tonsil
Term
the inferior surface of the tongue is connected to the floor of the mouth by this midline fold. It allows the anterior part of the tongue to move freely
Definition
frenulum of the tongue
Term
present on each side of the base of the lingual frenulum that includes the opening of the submandibular duct
Definition
sublingual caruncle (papilla)
Term
found on the sublingual caruncle, this is the opening from the submandibular salivary gland
Definition
opening of the submandibular duct
Term
composed of an irregularly shaped palate of elastic cartilage that is covered by thin skin, it has several depressions and elevations
Definition
auricle
Term
a canal that leads inward through the tympanic part of the temporal bone from the auricle to the tympanic membrane, a distance of 2-3 cm in adults
Definition
external acoustic meatus
Term
the elevated margin of the auricle
Definition
helix
Term
the non-cartilaginous part of the ear consists of fibrous tissues, fat, and blood vessels...it is easily pierced for taking small blood samples and inserting earrings
Definition
lobule
Term
On the pinna, a curved prominence of cartilage, parallel with and in front of the helix
Definition
antihelix
Term
a tongue-like projection overlapping the opening of the external acoustic meatus
Definition
tragus
Term
a feature of mammalian ear anatomy. In humans, it is a small tubercle that points anteriorly, but it may be much larger in some other species, most notably bats. It is separated from the tragus by the intertragic notch
Definition
antitragus
Term
the short bifid spinous processes of the C3-C5, vertebrae...it may be felt between the neck muscles
Definition
nuchal groove
Term
the tip of this cervical spinous process is the most evident superficially...often when the pt stands erect, it is the only spinous process visible; hence the name vertebral prominence
Definition
C7 spinous process
Term
Near the middle of the occipital squama, extending lateralward from it on either side is the superior nuchal line, and above this the faintly marked highest nuchal line.. projection on the external surface of the squamous part of the occipital bone in the midline
Definition
external occipital protuberance
Term
are the smallest of the true vertebrae, and can be readily distinguished from those of the thoracic or lumbar regions by the presence of a foramen (hole) in each transverse process, through which passes the vertebral artery
Definition
cervical vertebrae
Term
this spinous process may actually be more prominent than the C7 spinous process
Definition
T1 spinous process
Term
the more massive, cylindrical anterior part of the bone that gives strength to the vertebral column and supports body weight...consists of vascular, trabecular (spongy, cancellous) bone enclosed by a thin external layer of compact bone
Definition
vertebral body
Term
posterior to the vertebral body and consists of two (right &left) pedicles and laminae
Definition
vertebral arch
Term
short, stout cylindrical processes that project posteriorly from the vertebral body
Definition
pedicles
Term
two broad flat plates of bone which unite in the midline of the vertebral arch
Definition
laminae
Term
the vertebral arch and posterior surface of the vertebral body form the walls of this
Definition
vertebral foramen
Term
the succession of vertebral foramina in the articulated vertebral column forms this...it contains the spinal cord and roots of the spinal nerves
Definition
vertebral canal
Term
identifications observed in lateral views of the vertebrae superior and inferior to each pedicle between the superior and inferior articular processes posteriorly and the corresponding projections of the body anteriorly
Definition
vertebral notches
Term
the superior and inferior vertebral notches of adjacent vertebrae and the IV discs connecting them for this, which the spinal ganglia (posterior root) are located and through which the spinal nerves emerge from the vertebral column with their accompanying vessels
Definition
intervertebral foramen
Term
this one median process projects posteriorly (and usually inferiorly , typically overlapping the vertebra below) from the vertebral arch at the junction of the laminae
Definition
spinous process
Term
two of these project posterolaterally from the junctions of the pedicles and laminae
Definition
transverse processes
Term
four of these arise from the junctions of the pedicles and laminae, each bearing an articular surface (face)
Definition
superior and inferior articular processes
Term
lie between adjacent vertebrae in the spine. Each disc forms a cartilaginous joint to allow slight movement of the vertebrae, and acts as a ligament to hold the vertebrae together
Definition
intervertebral disks
Term
a synovial joint between the superior articular process of one vertebra and the inferior articular process of the vertebra directly above it. There are two facet joints in each spinal motion segment
Definition
zygapophysial joint
Term
C1 vertebra is unique in that it has neither a body nor a spinous process
Definition
Atlas
Term
part of the atlas these paired parts serve the place of the body by bearing the weight of the cranium
Definition
lateral masses
Term
these kidney shaped concave surfaces of the lateral masses articulate with two large cranial protuberances called the occipital condyles
Definition
superior articular surfaces
Term
each of these bear the a tubercle in the center in the center of its external aspect, extend between the lateral masses forming a complete ring
Definition
anterior and posterior arches
Term
C2 Vertebra is the strongest of the cervical vertebrae
Definition
Axis
Term
two large, flat bearing surfaces on which the the atlas rotates
Definition
superior articular facets
Term
distinguishing feature of the Axis is a blunt tooth like process, it projects superiorly from its body
Definition
Dens (odontoid process)
Term
this U-shaped bone is found in the anterior part of the neck at the level of C3 vertebra in the angle between the mandible and the thyroid cartilage
Definition
Hyoid bone
Term
the middle part of the hyoid bone, faces anteriorly and is aprox. 2.5 cm wide and 1 cm thick
Definition
body
Term
these parts if the hyoid bone project backward from the lateral borders of the body; they are flattened from above downward and diminish in size from before backward; each ends in a tubercle to which is fixed the lateral hyothyroid ligament
Definition
greater horns
Term
the lower jaw
Definition
mandible
Term
fusion of two bones along the palatal fissure that form the upper jaw.
Definition
maxilla
Term
two small oblong bones, varying in size and form in different individuals; they are placed side by side at the middle and upper part of the face, and form, by their junction, "the bridge" of the nose
Definition
nasal bone
Term
a bone in the human skull that resembles a cockleshell in form, and consists of two portions:[1]
a vertical portion, the squama frontalis, corresponding with the region of the forehead.
an orbital or horizontal portion, the pars orbitalis, which enters into the formation of the roofs of the orbital and nasal cavities.
Definition
frontal bone
Term
formed by the zygomatic process of temporal bone (a bone extending forward from the side of the skull, over the opening of the ear) and the temporal process of the zygomatic bone (the side of the cheekbone)
Definition
zygomatic arch
Term
undersurface facets of the occipital bone in vertebrates, which function in articulation with the superior facets of the atlas vertebra
Definition
occipital condyles
Term
a large opening in the occipital bone of the cranium. It is one of the several oval or circular apertures in the base of the skull (the foramina), through which the medulla oblongata (an extension of the spinal cord) enters and exits the skull vault
Definition
foramen magnum
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