Podcast
Questions and Answers
The bones of the cranial vault are classified as _____ bones.
The bones of the cranial vault are classified as _____ bones.
flat
The inner layer of spongy tissue found inside the cranial bones is called:
The inner layer of spongy tissue found inside the cranial bones is called:
diploe
The two fontanelles located on the MSP of the skull are the ________ and _______.
The two fontanelles located on the MSP of the skull are the ________ and _______.
bregma, lambda
The fontanelle located at the junction of the coronal and sagittal sutures is the:
The fontanelle located at the junction of the coronal and sagittal sutures is the:
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The fontanelle located at the junction of the lambdoidal and sagittal sutures is the:
The fontanelle located at the junction of the lambdoidal and sagittal sutures is the:
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The bone that forms the anterior portion of the cranium is the __________ bone.
The bone that forms the anterior portion of the cranium is the __________ bone.
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The cranial bone located between the orbits and posterior to the nasal bones is the _____________ bone.
The cranial bone located between the orbits and posterior to the nasal bones is the _____________ bone.
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The cranial bones that form the vertex and most of the sides of the cranium are the _________ bones.
The cranial bones that form the vertex and most of the sides of the cranium are the _________ bones.
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The prominent bulge of a parietal bone is called the parietal_____________.
The prominent bulge of a parietal bone is called the parietal_____________.
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The two parietal bones join together to form the ________ suture.
The two parietal bones join together to form the ________ suture.
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The two parietal bones articulate with the frontal bone to form the _____ suture.
The two parietal bones articulate with the frontal bone to form the _____ suture.
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The two parietal bones articulate posteriorly with the___________ bone.
The two parietal bones articulate posteriorly with the___________ bone.
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The two parietal bones and the occipital bone join together to form the ___________ suture.
The two parietal bones and the occipital bone join together to form the ___________ suture.
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The cranial bone that provides a depression to house the pituitary gland is the _______ bone.
The cranial bone that provides a depression to house the pituitary gland is the _______ bone.
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The cranial bone that forms the posteroinferior portion of the cranium is the ____________ bone.
The cranial bone that forms the posteroinferior portion of the cranium is the ____________ bone.
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The portion of the occipital bone that projects anteriorly from the foramen magnum is the ________ portion.
The portion of the occipital bone that projects anteriorly from the foramen magnum is the ________ portion.
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The large opening of the occipital bone through which part of the medulla oblongata pass is the _________ ___________.
The large opening of the occipital bone through which part of the medulla oblongata pass is the _________ ___________.
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The basilar portion of the occipital bone fuses anteriorly with the body of the _________ bone.
The basilar portion of the occipital bone fuses anteriorly with the body of the _________ bone.
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The structure that articulates with the occipital condyles is the __________.
The structure that articulates with the occipital condyles is the __________.
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The middle portion of the cranial base is formed by the __________ bone.
The middle portion of the cranial base is formed by the __________ bone.
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The organs of hearing are located in the ____ bone.
The organs of hearing are located in the ____ bone.
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The structure that separates the EAM from the auditory ossicles is the _________ membrane.
The structure that separates the EAM from the auditory ossicles is the _________ membrane.
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The process of the temporal bone that encloses radiographically significant air cells is the _______ process.
The process of the temporal bone that encloses radiographically significant air cells is the _______ process.
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The thickest and densest portion of bone in the cranium is the:
The thickest and densest portion of bone in the cranium is the:
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The petrous portion is a part of the ______ bone.
The petrous portion is a part of the ______ bone.
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The fibrocartilaginous, oval shaped portion of the external ear is the:
The fibrocartilaginous, oval shaped portion of the external ear is the:
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The zygomatic process projects anteriorly from the _______ bone.
The zygomatic process projects anteriorly from the _______ bone.
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The bone that forms part of the cranial base between the greater wings of the sphenoid bone and the occipital bone is the _______ bone.
The bone that forms part of the cranial base between the greater wings of the sphenoid bone and the occipital bone is the _______ bone.
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The anterior portion of the medial walls of the orbits is formed by the _________ bones.
The anterior portion of the medial walls of the orbits is formed by the _________ bones.
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The largest of the immovable bones of the face is the _____ bone.
The largest of the immovable bones of the face is the _____ bone.
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The body of each maxilla contains a large, pyramidal cavity called:
The body of each maxilla contains a large, pyramidal cavity called:
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The radiographically significant landmark that is the midpoint of the anterior nasal spine:
The radiographically significant landmark that is the midpoint of the anterior nasal spine:
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The anterior nasal spine projects superiorly from the:
The anterior nasal spine projects superiorly from the:
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The thick ridge on the inferior border of the maxillary bone that supports the teeth is the:
The thick ridge on the inferior border of the maxillary bone that supports the teeth is the:
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Facial bones that form the inferolateral portion of the orbital margin are the _____ bones.
Facial bones that form the inferolateral portion of the orbital margin are the _____ bones.
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The facial bones that form the prominence of the cheeks are the:
The facial bones that form the prominence of the cheeks are the:
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Study Notes
Cranial Bones and Structures
- Cranial vault bones are classified as flat bones.
- Inner layer of spongy tissue inside cranial bones is called diploe.
- Bregma fontanelle is at the junction of the coronal and sagittal sutures; lambda fontanelle is at the junction of the lambdoidal and sagittal sutures.
- The frontal bone forms the anterior portion of the cranium.
- The ethmoid bone is located between the orbits and posterior to the nasal bones.
- The parietal bones form the vertex and sides of the cranium, connecting at the sagittal suture.
Parietal and Occipital Bone Interactions
- The prominent bulge of a parietal bone is called the parietal eminence.
- Parietal bones articulate with the frontal bone at the coronal suture.
- Posterior articulation of parietal bones occurs with the occipital bone at the lambdoidal suture.
- The sphenoid bone houses the pituitary gland with its depression.
- The occipital bone forms the posteroinferior portion of the cranium, featuring the foramen magnum for medulla passage.
Temporal Bone Structure
- The temporal bone contains organs of hearing.
- The tympanic membrane separates the external acoustic meatus from the auditory ossicles.
- The mastoid process of the temporal bone contains significant air cells.
- The petrous portion is the densest bone in the cranium, part of the temporal bone.
Facial Bones and Features
- The auricle is the oval-shaped fibrocartilaginous portion of the external ear.
- The zygomatic process projects anteriorly from the temporal bone, contributing to facial structure.
- The maxilla is the largest immovable bone of the face, containing the maxillary sinus.
- The acanthion represents the midpoint of the anterior nasal spine, which projects superiorly from the maxillae.
- The alveolar process is a thick ridge supporting teeth along the inferior border of the maxillary bone.
- Zygomatic bones form the inferolateral portion of the orbital margin and the prominence of the cheeks, contributing to facial aesthetics.
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Description
Test your knowledge on cranial bones and their structures. This quiz covers the classification of cranial vault bones, important fontanelles, and the interactions between parietal and occipital bones. Dive into the fascinating anatomy of the human skull!
