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Fontanelle. A fontanelle (or fontanel) (colloquially, soft spot) is an anatomical feature of the infant human skull comprising soft membranous gaps (sutures) between the cranial bones that make up the calvaria of a fetus or an infant. [1] Fontanelles allow for stretching and deformation of the neurocranium both during birth and later as the ...
The anterior fontanelle (bregmatic fontanelle, frontal fontanelle) is the largest fontanelle, and is placed at the junction of the sagittal suture, coronal suture, and frontal suture; it is lozenge -shaped, and measures about 4 cm in its antero-posterior and 2.5 cm in its transverse diameter. The fontanelle allows the skull to deform during ...
Bregma. Superior view of the calvarium, bregma located at the intersection of the coronal and sagittal sutures. (Lambda also visible at the intersection of the lambdoid suture by the sagittal suture.) The bregma is the anatomical point on the skull at which the coronal suture is intersected perpendicularly by the sagittal suture.
Frontal suture. The frontal suture is a fibrous joint that divides the two halves of the frontal bone of the skull in infants and children. Typically, it completely fuses between three and nine months of age, with the two halves of the frontal bone being fused together. It is also called the metopic suture, [1][2] although this term may also ...
A sunken soft spot on a baby's head. Sunken eyes. Drowsiness or rapid breathing (severe, requiring emergency care) Diagnostic Tests. Diagnostic tests can help pinpoint the cause of palpitations.
Sunken soft spot on the head in infants and toddlers. Fewer or watery bowel movements. Decreased number of wet diapers. Symptoms of severe dehydration include: Extreme fussiness.
Craniosynostosis is a condition in which one or more of the fibrous sutures in a young infant's skull prematurely fuses by turning into bone (ossification), [2] thereby changing the growth pattern of the skull. [3] Because the skull cannot expand perpendicular to the fused suture, it compensates by growing more in the direction parallel to the ...
Sunken eyes or sunken soft spot on the baby's head. Wrinkled skin. Mild to Moderate Symptoms. Symptoms of mild-to-moderate dehydration in adults may include: Constipation or hard stools.