Anatomy Exam Bones of the Cranial Vault 2 — Questions and Answers
Question 1: Which suture connects the frontal bone to the two parietal bones?
- Sagittal suture
- Coronal suture (Correct answer)
- Lambdoid suture
- Squamous suture
Correct answer: Coronal suture
The coronal suture runs transversely across the skull, joining the frontal bone anteriorly to both parietal bones.
Question 2: The external occipital protuberance is a landmark on which cranial vault bone?
- Parietal bone
- Temporal bone
- Occipital bone (Correct answer)
- Sphenoid bone
Correct answer: Occipital bone
The external occipital protuberance is a prominent midline projection on the outer surface of the occipital bone.
Question 3: Which part of the temporal bone contains the internal acoustic meatus?
- Squamous part
- Tympanic part
- Petrous part (Correct answer)
- Mastoid part
Correct answer: Petrous part
The petrous part of the temporal bone contains the internal acoustic meatus, through which CN VII and CN VIII pass.
Question 4: The bregma is the point where which two sutures intersect?
- Coronal and sagittal sutures (Correct answer)
- Sagittal and lambdoid sutures
- Lambdoid and squamous sutures
- Coronal and squamous sutures
Correct answer: Coronal and sagittal sutures
Bregma is the junction of the coronal and sagittal sutures, corresponding to the anterior fontanelle in infants.
Question 5: Which cranial vault bone articulates with all other cranial bones?
- Occipital bone
- Frontal bone
- Sphenoid bone (Correct answer)
- Parietal bone
Correct answer: Sphenoid bone
The sphenoid bone articulates with all other cranial bones, earning it the designation as the 'keystone' of the cranium.
Question 6: The lambda is the junction of the sagittal suture with which other suture?
- Coronal suture
- Squamous suture
- Lambdoid suture (Correct answer)
- Metopic suture
Correct answer: Lambdoid suture
Lambda is where the sagittal suture meets the lambdoid suture, overlying the posterior fontanelle in infants.
Question 7: Which layer of the calvaria is the primary site of diploic veins?
- Outer table
- Inner table
- Diploë (Correct answer)
- Periosteum
Correct answer: Diploë
Diploic veins run within the diploë, the spongy cancellous bone sandwiched between the outer and inner tables of the calvaria.
Anatomy Exam Bones of the Cranial Vault 2
Which suture connects the frontal bone to the two parietal bones?