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FAS disrupts normal development of the fetus, which may cause certain developmental stages to be delayed, skipped, or immaturely developed. [12] Since alcohol elimination is slow in a fetus than in an adult and the fact that they do not have a developed liver to metabolize the alcohol, alcohol levels tend to remain high and stay in the fetus ...
Environmental toxicants and fetal development is the impact of different toxic substances from the environment on the development of the fetus. This article deals with potential adverse effects of environmental toxicants on the prenatal development of both the embryo or fetus, as well as pregnancy complications. The human embryo or fetus is ...
The scientific study of the causes of developmental disorders involves many theories. Some of the major differences between these theories involves whether environment disrupts normal development, if abnormalities are pre-determined, or if they are products of human evolutionary history which become disorders in modern environments (see evolutionary psychiatry). [5]
Teratology is the study of abnormalities of physiological development in organisms during their life span. It is a sub-discipline in medical genetics which focuses on the classification of congenital abnormalities in dysmorphology caused by teratogens and also in pharmacology and toxicology.
Learning about child development involves studying patterns of growth and development, from which guidelines for 'normal' development are construed. Developmental norms are sometimes called milestones – they define the recognized development pattern that children are expected to follow.
Biological development disorders (cellular, tissue and organic) Feature Absence Deficit Increase Transformation Normal; Primordium [1] (congenital development)
There is early development of secondary sex characters and gametogenesis also starts earlier. Precocious puberty is of two types: true precocious puberty and pseudoprecocious puberty. In a minority of children with precocious puberty, the early development is triggered by a disease such as a tumor or injury of the brain. [1]
[4] [28] Stress can affect children's growth and development, including the onset of puberty. [28] Some of the physical cues that may be indicative of stress in children are rashes on skin and skin diseases such as eczema , acne and hair loss , worsening asthma , insomnia or hypersomnia, frequent headaches, muscle aches, vomiting, constipation ...