rate of growth
Quick Summary
Growth is a planned process that determines an organism's size and shape, occurring through cell division and enlargement according to a predetermined pattern. The rate of growth can vary across different parts of an organism and is influenced by genetics, hormones, and environmental factors like nutrition and temperature.123
In animals, growth is typically restricted in time, with rapid development during embryonic stages, followed by a reduced rate in juveniles, and then cessation of overall body size increase. However, cell division and replacement continue throughout life in certain tissues, such as the liver and blood cell production sites. Height is a primary indicator of growth in humans, influenced by genetics and regulated by hormones like growth hormone and sex hormones. Nutrition is crucial, providing essential materials for bone and muscle development.124
The growth rate can be mathematically described, often resulting in an S-shaped (sigmoid) curve when plotted against time, reflecting an initial rapid increase followed by a slowdown. Environmental conditions, particularly temperature, significantly impact metabolic rates and can lead to dormancy or increased food consumption, affecting growth. Disorders in growth and development can arise from hormonal imbalances or abnormalities in sex chromosomes.5367
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human developmentTypes and rates of human growthā¦to the next, expressed as rate of growth per year. If growth is thought of as a form of motion, the height attained at successive ages can be considered the distance travelled, and the rate of growth, the velocity. The velocity or rate of growth reflects the childās state atā¦
Read Moreā¦to the next, expressed as rate of growth per year. If growth is thought of as a form of motion, the height attained at successive ages can be considered the distance travelled, and the rate of growth, the velocity. The velocity or rate of growth reflects the childās state atā¦
Read More- human developmentTypes of growth data
ā¦never reveal individual differences in rate of growth or in the timing of particular phases such as the adolescent growth spurt. It is these individual rate differences that throw light on the genetic control of growth and on the correlation of growth with psychological development, educational achievement, and social behavior.
Read Moreā¦never reveal individual differences in rate of growth or in the timing of particular phases such as the adolescent growth spurt. It is these individual rate differences that throw light on the genetic control of growth and on the correlation of growth with psychological development, educational achievement, and social behavior.
Read More - human developmentAlterations in growth rate
At puberty, a considerable alteration in growth rate occurs. There is a swift increase in body size, a change in shape and composition of the body, and a rapid development of the gonads, or sex glandsāthe reproductive organs and the characters signalling sexualā¦
Read MoreAt puberty, a considerable alteration in growth rate occurs. There is a swift increase in body size, a change in shape and composition of the body, and a rapid development of the gonads, or sex glandsāthe reproductive organs and the characters signalling sexualā¦
Read More