Lesson 4 Flashcards
articulation (speech definition)
process of bringing mobile and immobile articulators into contact to shape the sounds of speech
articulation (anatomy definition)
to connect or join together
resonation
the sound quality given to voiced sounds by the vocal tract
deglutition
swallowing
mastication
chewing
vocal tract
pharynx
nasal cavity
oral cavity
what are the articulators
mobile articulators
immobile articulators
mobile articulator
- lips
- tongue
- mandible
- soft palate (velum)
- pharynx
- cheeks
- fauces
immobile articulators
- alveolar ridge of maxillae
- hard palate (palatine processes of the maxilla and horizontal plates of the palatine bones)
- teeth
What are the bones of the face?
- mandible
- maxillae
- palatine bones
- nasal bones
- inferior nasal conchae
- vomer
- zygomatic
- lacrimal bones
- hyoid
mandible (face bone)
- condylar process
- coronoid process
- mandibular foramen
- corpus
- angle
- ramus
- alveolar part
condylar process (mandible)
articulates with temporal bone forming the temporomandibular joint
-TMJ:chronic inflammation of the temporomandibular joint
coronoid process (mandible)
point of attachment for temporalis muscle
mandibular foramen (mandible)
allows passage of inferior alveolar nerve
alveolar part (mandibular)
- ridge
- houses the teeth in dental alveoli (sacs)
maxillae (face bone)
- frontal process
- zygomatic process
- palatine process
- alveolar process
- premaxilla
- incisive foramen
- transverse palatine suture
- intermaxillary suture
- premaxillary suture
frontal process (maxillae)
articulates with frontal bone
zygomatic process (maxillae)
articulates with the zygomatic bone
palatine process (maxillae)
- forms the floor of the nasal cavity and the anterior 3/4 of the hard palate (roof of mouth)
- articulates with the palatine bones
alveolar process (maxillae)
houses teeth
premaxilla (maxillae)
anterior section of the maxillae
incisive foramen (maxillae)
-marks the connection of the premaxilla and both palatine processes
transverse palatine suture (maxillae)
-between palatine processes of the maxillae and horizontal plates of palatine bones
intermaxillary suture (maxillae)
between palatine processes
premaxillary suture (maxillae)
between palatine processes and premaxilla
palatine bones (face bone)
- horizontal plates
- makes up posterior 1/4 hard palate
Nasal bones (face bones)
small bones that form the bridge of the nose
inferior nasal conchae (face bone)
- small scroll like bones located on the lateral walls of the nasal cavity
- increases the surface area for warming and humidifying air
vomer (face bone)
-contributes to the formation of the nasal septum along with the perpendicular plate of the ethmoid bone and septal cartilage
zygomatic (face bone)
- frontal process
- temporal process
- maxillary process
frontal process (zygomatic)
articulates with the frontal bone
temporal process (zygomatic)
articulates with the temporal bone
maxillary process (zygomatic)
articulates with the maxilla
lacrimal bones (face bone)
- smallest facial bones
- contribute to the formation of the medial wall of the orbital cavity
what are the bones of the cranial skeleton?
- ethmoid
- sphenoid
- frontal
- parietal
- occipital
- temporal
ethmoid (cranial skeleton)
- crista galli
- cribriform plate
- superior nasal concha
- middle nasal concha
- perpendicular plate
crista galli (ethmoid)
extends superiorly into the cranial space
cribriform plate (ethmoid)
separates the cranial cavity from the nasal cavities and allows passage of olfactory nerves
superior nasal concha (ethmoid)
increases surface area to warm and humidify incoming air
middle nasal concha (ethmoid)
increases surface area to warm and humidify incoming air
perpendicular plate (ethmoid)
contributes to the structure of the nasal septum
sphenoid (cranial skeleton)
- great wings
- lesser wings
- hypophyseal fossa
- lateral pterygoid plates
- medial pterygoid plates
hypophyseal fossa (sphenoid)
- sella tursica
- houses the pituitary gland
lateral pterygoid plates (sphenoid)
-point of attachment for muscles of mastication
medial pterygoid plates (sphenoid)
-point of attachment for muscles of mastication
frontal (cranial skeleton)
- supraorbital margin
- zygomatic process
supraorbital margin (frontal)
contributes to the orbital cavity
zygomatic process (Frontal)
articulates with the zygomatic bone
parietal (cranial skeleton)
- coronal suture
- squamosal suture
- sagittal suture
- lambdoidal suture
coronal suture (parietal)
between frontal bone and parietal bones
squamosal suture (parietal)
between temporal and parietal bones
sagittal suture (parietal)
between both parietal bones
lambdoidal suture (parietal)
between occipital and parietal bones
craniosynostosis
- sutures of skull become ossified prematurely
- can affect one or more of the sutures
- may or may not be associated with other genetic syndromes
- can affect brain development/learning
occipital (cranial skeleton)
- foramen magnum
- condyles
foramen magnum (occipital)
allows passage of the spinal cord to the brainstem
condyles (occipital)
resting point for the first cervical vertebra
temporal (cranial skeleton)
- external auditory meatus
- zygomatic process
- mandibular fossa
- styloid process
- mastoid process
- petrous part
external auditory meatus (temporal)
ear canal
zygomatic process (temporal)
articulates with the temporal process of zygomatic bone to form zygomatic arch
mandibular fossa (temporal)
articulates with condyle to form the temporomandibular joint
styloid process (temporal)
point of attachment for various muscles
mastoid process (temporal)
point of attachment for various muscles of neck
petrous part
houses the organs of hearing (cochlea) & equilibrium (semicircular canals)
types of teeth
- permanent dental arch
- central incisor
- lateral incisor
- cuspids (canine)
- first bicuspids (premolar)
- second bicuspids (premolar)
- 1st molar
- 2nd molar
- 3rd molar (wisdom teeth)
components of a tooth
- crown
- root
- enamel
- dentin
- pulp
crown (components of a tooth )
area above the gum line
root (components of a tooth )
below the gum line
enamel (components of a tooth )
dense surface for protection
dentin (components of a tooth )
solid portion of tooth
pulp (components of a tooth )
contains nerves and blood vessels within tooth
dental development
- deciduous teeth
- permanent teeth