Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
28 Cards in this Set
- Front
- Back
List the cranial Bones of the Skull
|
Frontal bone
Parital bone (2) Occipital bone Sephenoid bone (2) Ethmoid bone Temporal Bone |
|
List the facial bones
|
Zygomatic bones/cheek bones(2)
Nasal bones (2) Lacrimal bones (2) Palatine bones (2) Inferior Conchae bone (2) Vomer bone Maxillae (2) Mandible |
|
Frontal
|
LOCATION: Forehead, extending down to form the upper surfaces of the orbits. Anterior roof of the skull.
|
|
Ethmoid
|
LOCATION: Floor of the cranium, inferior to the frontal bone and anterior to the sphenoid.
Non-technically: Centre of the face, behind the nose. FUNCTION: Forms part of the nasal cavity and the orbits. Main support structure of the nasal cavity |
|
Occipital
|
LOCATION: Back and base of the cranium, forms the back of the skull.
Non-technically: Lower back of the head. FUNCTION: The occipital condyles (rounded surfaces at the base of the occipital bone) articulate with the atlas (first vertebra of the spine), enabling movement of the head relative to the spine. Has a large opening called the Foramen Magnus which the spinal cord passes through. |
|
Parietal
|
LOCATION: Top and sides of the cranium, posterior roof of the skull.
|
|
Sphenoid
|
LOCATION: Anterior to the temporal bones and forms the base of cranium - behind the orbitals.
Consists of a body, two "wings" and two "pterygoid processes" (not labelled on diagrams) that project downwards. FUNCTION: Articulates with the frontal, parietal and temporal bones. |
|
Temporal
|
LOCATION: Sides of the skull, below the parietal bones, and above and behind the ears
|
|
Lacrimal
|
LOCATION: Behind and lateral to the nasal bone, also contribute to the orbits.
(Smallest bones in the face.) FUNCTION: Contain foramina for the nasolacrimal ducts (tear ducts). |
|
Mandible
|
LOCATION: Known as the lower jaw bone. Also forms the chin and sides of the face.
(Largest, strongest facial bone.) FUNCTION: Bone into which the lower teeth are attached. The only moveable facial bone; motion of this bone is necessary for chewing food (the first stage of the digestion process). Each side of the mandible has a condyle and a coronoid process. The condyle articulates with the temporal bone to form the temporomandibular joint. |
|
Maxilla
|
LOCATION: Upper jaw bone, which also forms the lower parts of the orbits.
FUNCTION: Bone into which the upper teeth are attached. Each maxilla contains a maxillary sinus that drains fluid into the nasal cavity |
|
Nasal
|
LOCATION: Pair of small oblong bones that form the bridge and roof of the nose.
|
|
Maxilla
|
LOCATION: Upper jaw bone, which also forms the lower parts of the orbits.
FUNCTION: Bone into which the upper teeth are attached. Each maxilla contains a maxillary sinus that drains fluid into the nasal cavity |
|
Palatine
|
LOCATION: Back of the roof of the mouth (hence not illustrated above). Small "L-shaped" bones.
FUNCTION: Form the bottom of the orbitals and nasal cavities, and also the roof of the mouth. |
|
Nasal Concha (Turbinator)
|
LOCATION: These terms refer to any of three thin bones that form the sides of the nasal cavity
FUNCTION: Form the nasal cavities |
|
Nasal
|
LOCATION: Pair of small oblong bones that form the bridge and roof of the nose.
|
|
Vomer
|
LOCATION: Thin roughly triangular plate of bone on the floor of the nasal cavity and part of the nasal septum
FUNCTION: Separates the nasal cavities into left and right sides. |
|
Palatine
|
LOCATION: Back of the roof of the mouth (hence not illustrated above). Small "L-shaped" bones.
FUNCTION: Form the bottom of the orbitals and nasal cavities, and also the roof of the mouth. |
|
Nasal Concha (Turbinator)
|
LOCATION: These terms refer to any of three thin bones that form the sides of the nasal cavity
FUNCTION: Form the nasal cavities |
|
Vomer
|
LOCATION: Thin roughly triangular plate of bone on the floor of the nasal cavity and part of the nasal septum
FUNCTION: Separates the nasal cavities into left and right sides. |
|
Zygomatic
|
LOCATION: Also known as Zygoma and Malar Bone.
Commonly (non-medically) referred to as the Cheek Bone because it forms the prominent part of the cheeks. Also contributes to the orbits. FUNCTION: Articulates with the frontal, maxilla, sphenoid and temporal bones. |
|
What are the functions of cranial bones?
|
Protection of the brain;
Inner-surfaces attach to membranes that stabilise the positions of the brain, blood vessels, and nerves; Outer-surfaces act as areas of attachment for muscles that move the head in various ways; Protect and support organs for the senses of vision, taste, smell, hearing and equilibrium/balance. |
|
What arethe functions of facial bones?
|
Form the mechanical framework of the face;
Protect and support entry points of both the digestive, and the respiratory systems; Provide attachment for some muscles of facial expression; Protect and support organs for the senses of vision, taste, smell, hearing and equilibrium/balance |
|
Coronal Suture
|
Articulation between the parietal bones and the frontal bone
|
|
Squamous Suture
|
Articulation between the temporal bones with the parietal bones.
|
|
Lambdoid Suture
|
Articulation of the parietal bones and the occipital bone
|
|
Occipitomastoid Suture
|
Articulation between the occipital bone and the mastoid process of the temporal bone
|
|
Sagittal Suture
|
You can't really see this one, but it is on the very top of the cranium. The articulation between the parietal bones
|