prenatal factors affecting growth and development of fetus pdf Thursday, May 13, 2021 12:57:02 PM

Prenatal Factors Affecting Growth And Development Of Fetus Pdf

File Name: prenatal factors affecting growth and development of fetus .zip
Size: 1401Kb
Published: 13.05.2021

Health care providers who see newcomer families have a pivotal role to play in identifying and initiating early treatment for developmental disabilities. Developmental disabilities may last a lifetime but early recognition of their existence, a timely diagnosis and an appropriate treatment plan can make a difference for the children and families involved. When seeing newcomer families, recognize that risk factors are cumulative.

Prenatal development

Prenatal development is highly influenced by the inheritance, expression, and regulation of genes. Developmental psychologists consider the process of human development as it relates to physical, cognitive, and psychosocial development. Prenatal development is the process that occurs during the 40 weeks prior to the birth of a child, and is heavily influenced by genetics. There are three stages of prenatal development— germinal, embryonic, and fetal. Prenatal development is also organized into trimesters: the first trimester ends with the end of the embryonic stage, the second trimester ends at week 20, and the third trimester ends at birth. Every person is made up of cells, each of which contains chromosomes. Chromosomes are genetic material that determines many things about a person, such as eye and hair color, biological sex, and personality traits.

However, a number of things, usually caused by genetics or environmental problems, can go wrong during this time. Genetics plays a major role in development. In some cases, genetic problems can emerge that may impact both the current and future growth of the developing child in the womb. Environmental variables can also play a major role in prenatal development. Harmful environmental elements that can affect the fetus are known as teratogens. The prenatal period is a time of tremendous growth and also great vulnerability.

Slideshare uses cookies to improve functionality and performance, and to provide you with relevant advertising. If you continue browsing the site, you agree to the use of cookies on this website. See our User Agreement and Privacy Policy. See our Privacy Policy and User Agreement for details. Published on Apr 13,

Problems With Prenatal Development

A fetus also foetus is a developing mammal after the embryonic stage and before birth. In humans, a fetus develops from the end of the 8th week of pregnancy when the major structures have formed , until birth. Maternal factors include maternal size, weight, weight for height, nutritional state, anemia, high environmental noise exposure, cigarette smoking, substance abuse, or uterine blood flow. Placental factors include size, microstructure densities and architecture , umbilical blood flow, transporters and binding proteins, nutrient utilization and nutrient production. Reference Terms. The plural is fetuses or foetuses. Factors affecting fetal growth can be maternal, placental, or fetal.

Factors influencing fetal growth

The environment can have an important influence on development, and this also includes the prenatal period. The growth that happens during the nine months of prenatal development is nothing short of astonishing, but this period is also a time of potential vulnerability. Fortunately, the effects of many of these hazards can be greatly lessened or even avoided entirely.

Environmental Influences on Prenatal Development

Prenatal Risk Factors for Developmental Delay in Newcomer Children

Prenatal development starts with fertilization , in the germinal stage of embryonic development, and continues in fetal development until birth. In human pregnancy , prenatal development is also called antenatal development. The development of the human embryo follows fertilization , and continues as fetal development. By the end of the tenth week of gestational age the embryo has acquired its basic form and is referred to as a fetus. The next period is that of fetal development where many organs become fully developed. This fetal period is described both topically by organ and chronologically by time with major occurrences being listed by gestational age. The very early stages of embryonic development are the same in all mammals.

To browse Academia. Skip to main content. By using our site, you agree to our collection of information through the use of cookies. To learn more, view our Privacy Policy. Log In Sign Up. Download Free PDF.

Prenatal risk factors and postnatal central nervous system function

Tools and Resources

Jan E. Growth means increase in size due to an increase of existing structural and functional units. Differentiation is a process whereby a relatively simple system is changed into a more complicated one. Differentiation is accomplished by formation of new structures morphologic differentiation and by formation of new chemical compounds chemical differentiation. Development is related to biological systems a process resulting from a selective, time-related switching on and off of genes.

The central nervous system CNS as the most complex human organ is frequently affected. Sometimes exposures cause gross damage to the brain, but subtle effects due to exposures to single and frequently multiple risk factors are much more common. Multiple risk factors with small effects are difficult to unravel and trace back to their individual effect. In the preconception phase, the parental haploid genomes can harbor genetic polymorphisms and molecular genetic or chromosomal aberrations that are associated with variations in CNS functioning of the offspring. The extent to which functionally relevant epigenetic alterations are transmitted via the germ lines is currently a subject of scientific debate.

И одновременно пустит АНБ ко дну. Сьюзан внезапно подумала, что Хейл, возможно, говорит правду, но потом прогнала эту мысль.

Желаю веселого уик-энда. Чатрукьян заколебался. - Коммандер, мне действительно кажется, что нужно проверить… - Фил, - сказал Стратмор чуть более строго, - ТРАНСТЕКСТ в полном порядке. Если твоя проверка выявила нечто необычное, то лишь потому, что это сделали мы .

Большой Брат был частью мира, в котором царила Мидж. Он получал информацию со 148 камер кабельного телевидения, 399 электронных дверей, 377 устройств прослушивания телефонов и еще 212 жучков, установленных по всему комплексу АНБ. Директора АН Б дорого заплатили за осознание того факта, что двадцать шесть тысяч сотрудников не только огромная ценность, но и источник больших неприятностей. Все крупные провалы в сфере безопасности в истории агентства происходили внутри этого здания.

Через несколько мгновений компьютер подал звуковой сигнал. Сердце ее заколотилось.

0 Comments

LEAVE A COMMENT