conception
(noun)
The fertilization of an ovum by a sperm to form a zygote.
Examples of conception in the following topics:
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Fourth Week of Development
- The embryonic heart attains functionality and starts beating at 22 days after conception (about five weeks after the last menstrual period).
- It can sometimes be seen as a flickering in the embryonic chest by an ultrasound performed during the fourth week after conception.
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Infertility
- Infertility, in both males and females, refers to the inability to contribute to conception.
- Infertility primarily refers to the biological inability of a person to contribute to conception.
- Definitions of infertility differ, with demographers tending to define infertility as childlessness in a population of women of reproductive age, while the epidemiological definition is based on "trying for" or "time to" a pregnancy, generally in a population of women exposed to a probability of conception.
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Understanding Medical Terms
- This systematic approach to word building and term comprehension is based on the concept of: (1) word roots, (2) prefixes, and (3) suffixes.
- However, if the basic concepts of word building are understood, many words are understandable to the student of medical terminology.
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Congenital Defects
- Of these diseases, those characterized by structural deformities are termed "congenital anomalies," a different concept which involves defects in or damage to a developing fetus.
- Animal studies indicate that the mother's (and possibly the father's) diet, vitamin intake, and glucose levels prior to ovulation and conception have long-term effects on fetal growth, and adolescent and adult disease.
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Functions of the Nervous System
- In humans, the sophistication of the nervous system makes it possible to have language, abstract representation of concepts, transmission of culture, and many other features of human society that would not exist without the human brain.
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Fertilization
- In medicine, this process is referred to as fertilization; in lay terms, it is more commonly known as "conception."
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Chorionic Villi and Placental Development
- Chorionic villi are vital in pregnancy from a histomorphologic perspective and are by definition, products of conception.
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Oogenesis
- The primary follicles have formed from primordial follicles, which developed in the ovary as a fetus at around 10–30 weeks after conception and are arrested in the prophase state of the cellular cycle.
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Production of Dilute and Concentrated Urine
- Fluid balance is the concept of human homeostasis, in that the amount of fluid lost from the body is equal to the amount of fluid taken in.
- Describe how the concept of fluid balance, or ensuring that the fluid lost from the body is equal to the amount of fluid, is applied to urine output and concentration
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Anatomical Changes
- These signs typically appear, if at all, within the first few weeks after conception.
- Shortly after conception, the nipples and areolas begin to darken due to a temporary increase in hormones.