Intermediate Sutures of the Skull Quiz

Q1. Which landmark lies where the frontal, parietal, temporal, and sphenoid bones meet?

• Bregma
• Lambda
• Pterion
• Nasion

Q2. Which landmark lies near the junction of the parietal, occipital, and mastoid part of the temporal bone?

• Bregma
• Asterion
• Glabella
• Pterion

Q3. Which suture lies between the parietal bone and mastoid part of the temporal bone?

• Sagittal suture
• Sphenofrontal suture
• Parietomastoid suture
• Frontonasal suture

Q4. Which suture lies between the occipital bone and mastoid part of the temporal bone?

• Squamous suture
• Occipitomastoid suture
• Coronal suture
• Frontonasal suture

Q5. Which skull landmark lies at the junction of the frontal bone and the two nasal bones?

• Lambda
• Nasion
• Asterion
• Inion

Q6. What connective tissue occupies a patent cranial suture?

• Hyaline articular cartilage
• Elastic cartilage
• Fibrous connective tissue
• Synovial fluid

Q7. How does skull growth normally occur at a cranial suture?

• The bones slide freely in a synovial cavity
• The bones shorten at their margins
• Bone is added at the sutural margins as the skull expands
• The suture is replaced by muscle

Q8. What term describes bony fusion across a suture that was previously fibrous?

• Symphysis
• Syndesmosis
• Synostosis
• Gomphosis

Q9. Which fontanelle lies in the anterolateral skull near the future pterion?

• Posterior fontanelle
• Mastoid fontanelle
• Anterior fontanelle
• Sphenoidal fontanelle

Q10. Which fontanelle lies posterolaterally near the future asterion?

• Mastoid fontanelle
• Posterior fontanelle
• Anterior fontanelle
• Sphenoidal fontanelle