Foetus

Foetus is a term used to describe a developing human from the ninth week of gestation until birth. This stage follows the embryonic stage and is characterized by rapid growth and development of the organism's structures and systems.

Development

The foetal stage is marked by significant development and growth. During this time, the foetus grows from approximately 3 centimeters in length to an average of 50-60 centimeters at birth. The weight of the foetus also increases dramatically, from about 8 grams to an average of 3.5 kilograms.

Anatomy

The anatomy of the foetus is similar to that of a newborn, but some structures and systems are not fully developed. For example, the lungs are not fully functional until the final weeks of gestation. The brain and nervous system continue to develop throughout the foetal stage and after birth.

Health and Well-being

The health and well-being of the foetus are influenced by many factors, including the mother's health, nutrition, and exposure to harmful substances. Prenatal care, including regular check-ups and screenings, can help ensure the health of the foetus.

Legal and Ethical Issues

There are many legal and ethical issues related to the foetus, including rights of the foetus, abortion, and research involving foetuses. These issues are often complex and controversial, and they vary widely among different cultures and legal systems.

See Also

• Embryo
• Pregnancy
• Prenatal care
• Abortion
• Foetal development

Foetus Resources
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