|
- Embryo - Wikipedia
A newly developing human is typically referred to as an embryo until the ninth week after conception, when it is then referred to as a fetus In other multicellular organisms, the word embryo can be used more broadly to any early developmental or life cycle stage prior to birth or hatching
- Embryo | Description, Characteristics, Development | Britannica
An embryo is the early developmental stage of an animal while it is in the egg or within the uterus of the mother In humans the term is applied to the unborn child until the end of the seventh week following conception
- EMBRYO Definition Meaning - Merriam-Webster
: an animal in the early stages of development that are marked by cleavage, the laying down of the basic tissues, and the formation of primitive organs and organ systems compare fetus : a tiny young plant within a seed : a beginning or undeveloped stageused especially in the phrase in embryo
- Embryo - Definition and Examples - Biology Online Dictionary
An embryo is a newly fertilized egg (zygote) up till the eighth week of development as it transforms through the morula, blastula, gastrula, and organogenesis stages
- What Is an Embryo? A Look at Early Biological Development
In humans, the developing organism is referred to as an embryo from the first cell division until about the eighth week after fertilization The journey of an embryo starts with fertilization, the fusion of two specialized sex cells, known as gametes—a sperm from the male and an egg from the female
- Human Embryonic and Fetal Development: Stages and Milestones Explained . . .
Human embryonic and fetal development is a fascinating journey that transforms a single cell into a fully formed fetus This diagram illustrates the key stages from fertilization to 20 weeks of fetal development, providing a clear visual guide for understanding this process
- Embryonic Development - Embryology
Clicking the Carnegie stage numbers opens a page dedicated to describing that single stage and the associated developmental events This page shows some key events of human development during the embryonic period of the first eight weeks (weeks 1 - 8) following fertilization
- 28. 2 Embryonic Development – Anatomy Physiology 2e
The embryo, which takes the shape of an oval-shaped disc, forms an indentation called the primitive streak along the dorsal surface of the epiblast A node at the caudal or “tail” end of the primitive streak emits growth factors that direct cells to multiply and migrate
|
|
|