Term
| What are the functions of the skull? |
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Definition
Protective Cavity.
Cavities to house sensor organs.
Openings for food and air.
Mastication (chewing) |
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Term
How many bones does the skull have?
How are the bones grouped? |
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Definition
22 Bones.
Grouped by cranial and facial. |
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Term
| An immovable joint that joins two bones in the skull. |
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Definition
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Term
| What is the only joint that is movable. |
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Definition
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Term
| The eight bones that encase and protect the brain. |
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Definition
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Term
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Definition
| Superior portion of the cranium. |
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Term
| A flat bone at the posterior inferior aspect of the cranium. |
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Definition
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Term
| At birth, this portion of the skull is born first. |
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Definition
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Term
| A large foramen in skull near the anterior aspect of the occipital bone in which the spinal cord enters the cranium |
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Definition
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Term
A large prominent eminence on the posterior midline of the ocipital bone.
What are both names? |
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Definition
External Occipital Protuberance.
(Occiput) |
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Term
| A curved ridge extending laterally from the occiput. |
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Definition
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Term
| Prominant oval projections at the anterolateral aspect of the foramen magnum that articulate with the fist cervical vertebrae. |
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Definition
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Term
| What articulates with the sphenoid bone? |
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Definition
| Clivus or basilar part of the occipital bone. |
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Term
| Two bones make up this part of the skull and are located at the lateral and superiorct of the cranium. |
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Definition
Parietal Bones.
Latin: Parietalis = pertaining to walls. |
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Term
| The part of the frontal bone that forms the superior border of the orbit. |
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Definition
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Term
| A small notch or hole,respectively, is found at the medial third of the supraorbital margin. |
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Definition
| Supraorbital Notch or Foramen. |
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Term
| What is the space called that lies between the orbital and squamous part of the frontal bone? |
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Definition
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Term
| What part of the frontal bone forms the forehead. |
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Definition
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Term
| This bone forms the forehead and the roof of the orbits |
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Definition
Frontal Bone.
Latin: Frons = A brow or forehead. |
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Term
| The bones that lie at the lateral aspect of the cranium, inferior to the parietal bones. |
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Definition
Temporal Bone.
Latin Tempus = Time.
Named due to hair turning gray first giving the ability to tell how old someone is. |
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Term
| What is the weakest of all cranial bones? |
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Definition
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|
Term
| What are the functions of the skull? |
|
Definition
Protective Cavity.
Cavities to house sensor organs.
Openings for food and air.
Mastication (chewing) |
|
|
Term
How many bones does the skull have?
How are the bones grouped? |
|
Definition
22 Bones.
Grouped by cranial and facial. |
|
|
Term
| An immovable joint that joins two bones in the skull. |
|
Definition
|
|
Term
| What is the only joint that is movable. |
|
Definition
|
|
Term
| The eight bones that encase and protect the brain. |
|
Definition
|
|
Term
|
Definition
| Superior portion of the cranium. |
|
|
Term
| A flat bone at the posterior inferior aspect of the cranium. |
|
Definition
|
|
Term
| At birth, this portion of the skull is born first. |
|
Definition
|
|
Term
| A large foramen in skull near the anterior aspect of the occipital bone in which the spinal cord enters the cranium |
|
Definition
|
|
Term
A large prominent eminence on the posterior midline of the ocipital bone.
What are both names? |
|
Definition
External Occipital Protuberance.
(Occiput) |
|
|
Term
| A curved ridge extending laterally from the occiput. |
|
Definition
|
|
Term
| Prominant oval projections at the anterolateral aspect of the foramen magnum that articulate with the fist cervical vertebrae. |
|
Definition
|
|
Term
| What articulates with the sphenoid bone? |
|
Definition
| Clivus or basilar part of the occipital bone. |
|
|
Term
| Two bones make up this part of the skull and are located at the lateral and superiorct of the cranium. |
|
Definition
Parietal Bones.
Latin: Parietalis = pertaining to walls. |
|
|
Term
| The part of the frontal bone that forms the superior border of the orbit. |
|
Definition
|
|
Term
| A small notch or hole,respectively, is found at the medial third of the supraorbital margin. |
|
Definition
| Supraorbital Notch or Foramen. |
|
|
Term
| What is the space called that lies between the orbital and squamous part of the frontal bone? |
|
Definition
|
|
Term
| What part of the frontal bone forms the forehead. |
|
Definition
|
|
Term
| This bone forms the forehead and the roof of the orbits |
|
Definition
Frontal Bone.
Latin: Frons = A brow or forehead. |
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Term
| The bones that lie at the lateral aspect of the cranium, inferior to the parietal bones. |
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Definition
Temporal Bone.
Latin Tempus = Time.
Named due to hair turning gray first giving the ability to tell how old someone is. |
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Term
| What is the weakest of all cranial bones? |
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Definition
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Term
| This bone extends anteriorly from the anteriorinferior aspect of the squamous part to articulate with the zygomatic bone. |
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Definition
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Term
| The large canal posterior to the mandibular fossa that opens into the ear. |
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Definition
| External Auditory Meatus. |
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Term
| A long, slender, pencil like process anteromedial to the external auditory meatus that extends inferiorly |
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Definition
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Term
| The hard wedge shaped portion between the occipital and the sphenoid bones that houses the middle and inner ear. |
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Definition
Petrous Portion of the Temporal Bone.
Latin - Petrosus = rocky, stony. |
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Term
| Describe the sphenoid bone. |
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Definition
Forms base of cranium anterior to lateral walls of the orbit.
Name because it is wedged between the cranial and the facial bones.
Greek Sphen = wedge. Oeides = shape |
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Term
| A deep depression on the superior aspect of the body. The posterior border is formed by the Dorsum Sellae. |
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Definition
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Term
| What houses the pituitary gland? What secondary structure is this located on? What primary structure? |
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Definition
Hypophyseal Fossa.
Sella Turcia.
Spenoid Bone. |
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Term
| Where are the foramen rotundum and the foramen ovale found? |
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Definition
| Greater wings of the sphenoid bone. |
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Term
| What extends to the posterior surface of the orbit and makes up the anterior aspect of the superior surface of the body. |
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Definition
| Lesser Wings of sphenoid bone. |
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Term
What extends from the junction of the great wing and the body of the sphenoid bone?
What two bones make this process?
What is the feature called that separates the two above bones posteriorly? |
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Definition
Pterygoid Process.
Medial and Lateral Pterygoid Plate.
Pterygoid Fossa - medial and lateral come together to form this fossa, and can be seen posteriorly. |
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Term
| A sieve like bone at the anterior base of the cranium between the two orbits. |
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Definition
Ethmoid Bone.
Note: Sits posterior to lacrimal and anterior to sphenoid bone. |
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Term
What are the structures of the Ethmoid Bone?
Describe each.
(6 parts) |
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Definition
Cribifom Plate - Horizontal plate that forms the anterior aspect of the cranium and has numerous foramina for nerve fibers.
Crista Galli - two small verticle bones surrounded by the cribriform plate.
Perpendicular Plate of Ethmoid - extends inferiorly from the cribriform plate to form the superior aspect of the nasal septum.
Lateral Mass - Lateral aspects of ethmoid made up of large air cells (sinuses). Fomrs part of orbit.
Middle Nasal Concha (Turbinate) - is free convoluted inferior margin of the medial plate of the lateral mass.
Superior Nasal Concha (turbinate) - part of the lateral mass superior to the middle nasal concha. |
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Term
| How many bones make up the skeleton of the face? |
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Definition
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Term
| What forms the upper jaw? How many bones is it composed of? |
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Definition
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Term
| What are the structures of the Maxilla? |
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Definition
Body - pyramid shape, maxillary sinus.
Alveolar Process - arch on inferior boarder. Includes cavities for teeth of upper jaw.
Palatine Process - extends medially to articulate with the contralateral maxilla, forming the hard palate.
Infraorbital Foramen - found on anterior surface of body inferior to the infraorbital margin. |
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Term
What are the structures of the mandible?
(7 parts) |
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Definition
Alveolar Process - Arch of superior border of the body which teeth of the lower jaw are set.
Mental Foramen - lateral aspect of the body and is inferior to second premolar tooth.
Angle - formed at the intersection of the ramus and body.
Condyloid Process (head) - superior boarder of the ramus articulates with the madibular fossa of the temporal bone.
Neck - constricted area of the ramus inferior to the head.
Anterior Coronoid Process - found on superior boarder of the ramus
Mandibular Foramen - The large central foramen on the medial surface of the ramus. |
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Term
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Definition
Greek - Zygoma = a yoke or bar connecting two parts.
Helps form xygomatic arch that gonnects the zygomatic and temporal bone. Form lateral wall and floor of orbit. |
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Term
| Describe the Nasal Bones. |
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Definition
Two small bones from anterior superior aspect of the nose inferior to the frontal bone.
Help form the nose. |
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Term
Small thin, irregular bones from the anterior portion of the medial wall of oribt.
This bone is near the tear duct. |
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Definition
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Term
| A small, curved, irregular, shell-like bone that extends horizontally along the lateral nasal wall superior to the hard palate. |
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Definition
| Inferior Nasal Concha (turbinate) |
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Term
| Form the posterior portion of the hard palate posterior to the maxilla. |
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Definition
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Term
| verticle irregular bone in the median plane that extends between the hard palate inferiorly to the sphenoid and the ethmoid speriorly. |
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Definition
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