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t. e. An infant or baby is the very young offspring of human beings. Infant (from the Latin word infans, meaning 'baby' or 'child' [1]) is a formal or specialised synonym for the common term baby. The terms may also be used to refer to juveniles of other organisms. A newborn is, in colloquial use, an infant who is only hours, days, or up to one ...
Childbirth, also known as labour, parturition and delivery, is the completion of pregnancy where one or more babies exits the internal environment of the mother via vaginal delivery or caesarean section. [7] In 2019, there were about 140.11 million human births globally. [9] In developed countries, most deliveries occur in hospitals, [10][11 ...
Human growthand development. A fetus or foetus (/ ˈfiːtəs /; pl.: fetuses, foetuses, rarely feti or foeti) is the unborn mammalian offspring that develops from an embryo. [1] Following the embryonic stage, the fetal stage of development takes place.
The usual signs and symptoms of pregnancy do not significantly interfere with activities of daily living or pose a health-threat to the mother or baby. However, pregnancy complications can cause other more severe symptoms, such as those associated with anemia. Common signs and symptoms of pregnancy include: Tiredness; Morning sickness; Constipation
Birth. Lambing: the mother licks the first lamb while giving birth to the second. Birth is the act or process of bearing or bringing forth offspring, [1] also referred to in technical contexts as parturition. In mammals, the process is initiated by hormones which cause the muscular walls of the uterus to contract, expelling the fetus at a ...
Human embryonic development or human embryogenesis is the development and formation of the human embryo. It is characterised by the processes of cell division and cellular differentiation of the embryo that occurs during the early stages of development. In biological terms, the development of the human body entails growth from a one-celled ...
Embryo. An embryo is the initial stage of development for a multicellular organism. In organisms that reproduce sexually, embryonic development is the part of the life cycle that begins just after fertilization of the female egg cell by the male sperm cell. The resulting fusion of these two cells produces a single-celled zygote that undergoes ...
Human growthand development. A toddler is a child approximately 1 to 3 years old, though definitions vary. [1][2][3] The toddler years are a time of great cognitive, emotional and social development. The word is derived from "to toddle", which means to walk unsteadily, like a child of this age. [4]