Gestation - Wikipedia
Gestation is the period of development during the carrying of an embryo, and later fetus, inside viviparous animals (the embryo develops within the parent). [1] It is typical for mammals , but also occurs for some non-mammals.
Gestation: What It Means in Pregnancy - Healthline
2023年7月11日 · The gestation period is how long a woman is pregnant. Most babies are born between 38 and 42 weeks of gestation. Babies born before 37 weeks are considered premature.
Gestation Definition & Meaning - Merriam-Webster
The meaning of GESTATION is the carrying of young in the uterus : pregnancy. How to use gestation in a sentence.
Gestation | Pregnancy, Development & Duration | Britannica
Gestation, in mammals, the time between conception and birth, during which the embryo or fetus is developing in the uterus. This definition raises occasional difficulties because in some species (e.g., monkeys and man) the exact time of conception may not be known.
Fetal Development: Week-by-Week Stages of Pregnancy - Cleveland Clinic
In a cycle that ends with pregnancy, there are several steps. First, a group of eggs (called oocytes) gets ready to leave your ovary for ovulation (release of the egg). The eggs develop in small, fluid-filled cysts called follicles.
GESTATION | English meaning - Cambridge Dictionary
GESTATION definition: 1. (the period of) the development of a child or young animal while it is still inside its mother's…. Learn more.
Pregnancy: Gestation, Trimesters & What To Expect - Cleveland Clinic
2024年4月11日 · Gestational age is a combination of weeks and days. For example, 22 weeks and 3 days pregnant. You may see this same figure written as 22 3/7 or referred to as 22 weeks gestation. Gestational age describes the pregnancy, not the fetus. The fetal age is typically not a measurement your provider will use.
43.7A: Human Gestation - Biology LibreTexts
2023年10月31日 · Human gestation. Twenty-four hours before fertilization, the egg has finished meiosis and become a mature oocyte. When fertilized (at conception), the egg, now known as a zygote, travels through the oviduct to the uterus. The developing embryo must implant into the wall of the uterus within seven days or it will deteriorate and die.
Gestation | definition of gestation by Medical dictionary
gestation the development of the embryo in the uterus of mammals. The gestation period is the time elapsing from fertilization and the implantation of the embryo to birth. This takes 60 days in the domestic cat, 9 months in humans and 18 months in the Indian elephant.
Fetal development by week: Your baby in the womb - BabyCenter
2023年2月21日 · At the start of this week, you ovulate.Your egg is fertilized 12 to 24 hours later if a sperm penetrates it. Over the next several days, the fertilized egg (called a zygote) will start dividing into multiple cells as it travels down the fallopian tube, enters your uterus, and starts to burrow into the uterine lining.. Read about fertilization.