What is the difference between fontanels and sutures

Certainty Style Key. Certainty styling is being phased out topic by topic. Hover over keys for definitions:. What is MOCA? Human Uniqueness Compared to "Great Apes":. Human Universality:. Individual Universal All Individuals Everywhere. MOCA Domain:. Anatomy and Biomechanics. Melanie Beasley. Possible Appearance:.

Probable Appearance:. References Metopic suture of Taung Australopithecus africanus and its implications for hominin brain evolution , Falk, D. The evolution of hominin ontogenies. Brain size at birth throughout human evolution: a new method for estimating neonatal brain size in hominins. The morphogenesis of wormian bones: a study of craniosynostosis and purposeful cranial deformation.

A juvenile early hominin skeleton from Dikika, Ethiopia. Brain ontogeny and life history in Homo erectus. Early brain growth in Homo erectus and implications for cognitive ability. The Juvenile Skeleton , Scheuer, L. Types of sutures: Coronal suture: it lies between Frontal and Parietal bone Lambdoidal suture: It lies between Occipital and parietal bone Sagital suture: It lies between left and right parietal bone Squamousal suture: It lies between Temporal and parietal bone Types of Fontanelles: 1.

Frontal or anterior fontanelle: It is located between angles of two Parietal bone and two sections of frontal bones. It is diamond shaped. It closes about month after birth. Goyal NK. The newborn infant. In: Kliegman RM, St. Nelson Textbook of Pediatrics. Philadelphia, PA: Elsevier; chap Varma R, Williams SD. Updated by: Neil K. Editorial team. Cranial sutures. Cranial sutures are fibrous bands of tissue that connect the bones of the skull.

An infant's skull is made up of 6 separate cranial skull bones: Frontal bone Occipital bone Two parietal bones Two temporal bones These bones are held together by strong, fibrous, elastic tissues called sutures. Two fontanelles usually are present on a newborn's skull: On the top of the middle head, just forward of center anterior fontanelle In the back of the middle of the head posterior fontanelle The posterior fontanelle usually closes by age 1 or 2 months.