Questions and Answers
The bones of the cranial vault are classified as _____ bones.
flat
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 _______.
bregma, lambda
The fontanelle located at the junction of the coronal and sagittal sutures is the:
Signup and view all the answers
The fontanelle located at the junction of the lambdoidal and sagittal sutures is the:
Signup and view all the answers
The bone that forms the anterior portion of the cranium is the __________ bone.
Signup and view all the answers
The cranial bone located between the orbits and posterior to the nasal bones is the _____________ bone.
Signup and view all the answers
The cranial bones that form the vertex and most of the sides of the cranium are the _________ bones.
Signup and view all the answers
The prominent bulge of a parietal bone is called the parietal_____________.
Signup and view all the answers
The two parietal bones join together to form the ________ suture.
Signup and view all the answers
The two parietal bones articulate with the frontal bone to form the _____ suture.
Signup and view all the answers
The two parietal bones articulate posteriorly with the___________ bone.
Signup and view all the answers
The two parietal bones and the occipital bone join together to form the ___________ suture.
Signup and view all the answers
The cranial bone that provides a depression to house the pituitary gland is the _______ bone.
Signup and view all the answers
The cranial bone that forms the posteroinferior portion of the cranium is the ____________ bone.
Signup and view all the answers
The portion of the occipital bone that projects anteriorly from the foramen magnum is the ________ portion.
Signup and view all the answers
The large opening of the occipital bone through which part of the medulla oblongata pass is the _________ ___________.
Signup and view all the answers
The basilar portion of the occipital bone fuses anteriorly with the body of the _________ bone.
Signup and view all the answers
The structure that articulates with the occipital condyles is the __________.
Signup and view all the answers
The middle portion of the cranial base is formed by the __________ bone.
Signup and view all the answers
The organs of hearing are located in the ____ bone.
Signup and view all the answers
The structure that separates the EAM from the auditory ossicles is the _________ membrane.
Signup and view all the answers
The process of the temporal bone that encloses radiographically significant air cells is the _______ process.
Signup and view all the answers
The thickest and densest portion of bone in the cranium is the:
Signup and view all the answers
The petrous portion is a part of the ______ bone.
Signup and view all the answers
The fibrocartilaginous, oval shaped portion of the external ear is the:
Signup and view all the answers
The zygomatic process projects anteriorly from the _______ bone.
Signup and view all the answers
The bone that forms part of the cranial base between the greater wings of the sphenoid bone and the occipital bone is the _______ bone.
Signup and view all the answers
The anterior portion of the medial walls of the orbits is formed by the _________ bones.
Signup and view all the answers
The largest of the immovable bones of the face is the _____ bone.
Signup and view all the answers
The body of each maxilla contains a large, pyramidal cavity called:
Signup and view all the answers
The radiographically significant landmark that is the midpoint of the anterior nasal spine:
Signup and view all the answers
The anterior nasal spine projects superiorly from the:
Signup and view all the answers
The thick ridge on the inferior border of the maxillary bone that supports the teeth is the:
Signup and view all the answers
Facial bones that form the inferolateral portion of the orbital margin are the _____ bones.
Signup and view all the answers
The facial bones that form the prominence of the cheeks are the:
Signup and view all the answers
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.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
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!
