Major Sutures

Question 1

what are the 4 major sutures of the skull?

Answer 1

Coronal suture - between the frontal bone and the two parietal bone (runs left to right across skull)

Sagittal Suture - Between the two parietal bone (runs anterior too posterior)

Lambdoidal Suture - Between occiput and two parietal bones (back of head)

Temporal - Where the temporal meets the occiput and the parietal bone (behind the ear lateral posterior aspect of the head)

Question 2

What are the 4 major boney landmarks?

Answer 2

Lambda - Junction of sagittal and lambdoidal sutures
- The pariatel bones & occipital bone
(back of head)

Bregma - Junction of the coronal and sagittal suture
- Frontal bone & parietal bone
(Top of head)

Pterion - Between the sphenoid, temporal, frontal and
parietal bone
(near top of ear)

Asterion - Junction of the parietal, temporal and
occipital bone. (looks like a star)
(side back of head)