Skull + Velum + Velum Research Flashcards
Through what pathways do the airstreams for oral and nasal sounds go through?
- Oral = oropharyngeal isthmus
- Nasal = velopharyngeal port
The OPI is the ____ and is an ____ shaped opening leading to oral cavity
Oropharyngeal isthmus; arch
The VPP is the ____ and connects _____ to nasal passages
velopharyngeal port; mouth
The skull has ____ (#) bones
(Neuro) cranial bones = ____
Viscerocranial/Facial bones = ______
22; 8; 14
Name all the different cranial bones (6 different ones, 2 with pairs - identify the pairs too)
- Temporal bone - 1 pair
- Parietal bone - 1 pair
- Frontal bone
- Occipital bone
- Sphenoid bone
- Ethmoid bone
Name all viscerocranial/facial bones (6 pairs + 2 singular)
- Mandible
- Maxilla - 1 pair
- Palatine bone - 1 pair
- Zygomatic bone - 1 pair
- Lacrimal bone - 1 pair
- Nasal bone - 1 pair
- Inferior nasal concha - 1 pair
- Vomer
Temporal bone : location and 3 main parts
- Sides + base of skull, flanking brain laterally
- Squamous; mastoid; petrous
The flat, thin portion that contributes to the zygomatic arch is called ____ (think “squeaming) and is part of ______
squamous; temporal bone
Function of mastoid part and WHERE it is from
Contains mastoid process, important for muscle attachment - part of temporal bone
Name this part : part of temporal bone, houses the inner ear structures and is a dense pyramidal shaped section (think marija’s sister)
petrous part
The bone that is HARDEST is the ____ and that is the protect the _____
petrous; inner ear structures (they are the most sensitive)
Parietal bone : location and structure
Location : occupies a large portion of sides and roof of cranial cavity
Structure : broad, curved plates forming upper lateral sides of skull that meet at TOP of skull at sagittal suture
Name the four sutures and where they are
- Sagittal suture : along MIDLINE of skull
- Coronal : at the anterior (front) of skull (parietel meet with frontal)
- Lambdoid : at the posterior of the skull (parietal meet occipital)
- Squamosal suture : at literal sides of skull (parietal meets temporal)
Frontal bone : location and structure
Location : forms forehead + upper part of orbital cavity (eye sockets)
Structure : SINGLE bone including forehead, roof of orbits and MOST of anterior cranial floor
The parietal and frontal bone articulate at the ______ suture
coronal
Occipital bone : location and structure
Location : forms posterior + inferior parts of cranial cavity
Structure : single bone including back of skull and base of skull around foramen magnum
The occipital b. articulates with the ____ bone at the ______ suture
parietal; lambdoid
Sphenoid bone : location and structure
Location : base of skull in between the temporal and frontal bone
Structure : butterfly shaped bone forming part of floor of cranial cavity + forms part of sinus
The ____ bone articulates with all other cranial bones at their sutures
sphenoid
Ethmoid bone : location and structure (has to do with nasal cavity)
Location : roof of nasal cavity and base of cranium
Structure : between orbital cavities, forming part of nasal septum & lateral walls + roof of nasal cavity
How does the ethmoid bone interact with bones and sutures (2 relevant ones)
Articulates with frontal bone anteriorly + sphenoid bone posteriorly
Maxilla : location (4) and structure (what it is and whatdoes it form)
Location : forms upper jaw + parts of orbit, nasal cavities and hard palate
Structure : paired bones fused (permanent) at midline, containing UPPER teeth
- forms floor of orbit cavities + roof of mouth
- contributes to forming nasal cav + paranasal sinuses
Mandible : location + structure
Location : lower JAWBONE, only moveable bone of skull (moves fleshy parts)
Structure : largest + strongest bone in face + holds lower teeth
What is the strongest bone in face and WHY?
Mandible, needs to be able to crush food (with lower teeth)
