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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 ...
Dipteran morphology differs in some significant ways from the broader morphology of insects. The Diptera is a very large and diverse order of mostly small to medium-sized insects. They have prominent compound eyes on a mobile head, and (at most) one pair of functional, membraneous wings, [1] which are attached to a complex mesothorax.
t. e. Adult development encompasses the changes that occur in biological and psychological domains of human life from the end of adolescence until the end of one's life. Changes occur at the cellular level and are partially explained by biological theories of adult development and aging. [1] Biological changes influence psychological and ...
Eggs of the buff-tip (Phalera bucephala), a notodontid moth. The external morphology of Lepidoptera is the physiological structure of the bodies of insects belonging to the order Lepidoptera, also known as butterflies and moths. Lepidoptera are distinguished from other orders by the presence of scales on the external parts of the body and ...
Glossary of developmental biology. This glossary of developmental biology is a list of definitions of terms and concepts commonly used in the study of developmental biology and related disciplines in biology, including embryology and reproductive biology, primarily as they pertain to vertebrate animals and particularly to humans and other mammals.
Noonan syndrome (NS) is a genetic disorder that may present with mildly unusual facial features, short height, congenital heart disease, bleeding problems, and skeletal malformations. [1] Facial features include widely spaced eyes, light-colored eyes, low-set ears, a short neck, and a small lower jaw. [1]
Neoteny (/ niˈɒtəni /), [1][2][3][4] also called juvenilization, [5] is the delaying or slowing of the physiological, or somatic, development of an organism, typically an animal. Neoteny is found more in modern humans compared to other primates. [6] In progenesis or paedogenesis, sexual development is accelerated.
Morphogenesis. Morphogenesis (from the Greek morphê shape and genesis creation, literally "the generation of form") is the biological process that causes a cell, tissue or organism to develop its shape. It is one of three fundamental aspects of developmental biology along with the control of tissue growth and patterning of cellular ...