Podcast
Questions and Answers
Which of the following bones has a parietal foramen?
Which of the following bones has a parietal foramen?
- Occipital bone
- Frontal bone
- Sphenoid bone
- Parietal bone (correct)
How many angles does the parietal bone have?
How many angles does the parietal bone have?
- 6
- 3
- 4 (correct)
- 5
Which point is located at the asterion?
Which point is located at the asterion?
- Mastoid angle (correct)
- Mastoid angle (correct)
- Lambda
- Pterion
Where is the frontal angle located?
Where is the frontal angle located?
Which point is NOT one of the four angles of the parietal bone?
Which point is NOT one of the four angles of the parietal bone?
What is the total number of bones in the skull?
What is the total number of bones in the skull?
What is the function of the cranium?
What is the function of the cranium?
How many bones form the face?
How many bones form the face?
What is the difference between the number of bones in the cranium and the face?
What is the difference between the number of bones in the cranium and the face?
What is the proportion of bones in the cranium to the total number of bones in the skull?
What is the proportion of bones in the cranium to the total number of bones in the skull?
Which bones does the basilar portion articulate with?
Which bones does the basilar portion articulate with?
What is the location of the basilar portion relative to the foramen magnum?
What is the location of the basilar portion relative to the foramen magnum?
What is the function of the basilar portion?
What is the function of the basilar portion?
What type of joint is formed by the basilar portion?
What type of joint is formed by the basilar portion?
What is the role of the bones that the basilar portion articulates with?
What is the role of the bones that the basilar portion articulates with?
What is the shape of the parietal bones that form the roof and sides of the cranial vault?
What is the shape of the parietal bones that form the roof and sides of the cranial vault?
What structure is found on the endocranial surface of the parietal bones?
What structure is found on the endocranial surface of the parietal bones?
What is the function of the grooves found on the endocranial surface of the parietal bones?
What is the function of the grooves found on the endocranial surface of the parietal bones?
How many parietal bones are found in the cranial vault?
How many parietal bones are found in the cranial vault?
What is the name of the artery that makes grooves on the endocranial surface of the parietal bones?
What is the name of the artery that makes grooves on the endocranial surface of the parietal bones?
What is located on the posterior inferior surface of the petrous part?
What is located on the posterior inferior surface of the petrous part?
What feature does the mastoid part of the petrous bone have?
What feature does the mastoid part of the petrous bone have?
What is true about the mastoid part of the petrous bone?
What is true about the mastoid part of the petrous bone?
What is NOT a feature of the mastoid part of the petrous bone?
What is NOT a feature of the mastoid part of the petrous bone?
What is the location of the jugular fossa?
What is the location of the jugular fossa?
Study Notes
Skull Composition
- The skull is composed of 22 bones.
- 8 bones form the cranium, which contains the brain and meninges.
- 14 bones form the face.
Parietal Bones
- There are 2 parietal bones that form the roof and sides of the cranial vault.
- These bones are relatively square in shape.
- The endocranial surface has grooves made by branches of the middle meningeal artery.
- The parietal foramen is a feature of these bones.
Angles of the Parietal Bones
- There are 4 angles:
- Frontal angle: located at bregma.
- Sphenoid angle: located at pterion.
- Occipital angle: located at lambda.
- Mastoid angle: located at asterion.
Basilar Portion
- Articulates with the petrous part of the temporal and the sphenoid bones.
- Located immediately anterior to the foramen magnum.
- The posterior inferior surface of the petrous part has the jugular fossa.
Mastoid Part
- Extends posteriorly.
- Has large mastoid air cells.
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Description
This quiz covers the composition of the human skull, including the number of bones and their functions. Learn about the cranium and facial bones that make up the skull.
