Dictionary » E » Embryo

Embryo

Definition

noun, plural: embryos

(zoology) A multicellular organism that primarily undergoes extensive and rapid growth and differentiation between the time of fertilization and fetal stage in higher forms while larval stage in lower forms

(human biology) Baby in the early developmental stage, after the zygote phase (at fertilization) to week eight from the time of fertilization (note: week eight from the time of fertilization is equivalent to 10 weeks gestational age)

(botany) A young, developing plant, such as the rudimentary plant inside the seed of higher plant forms or that inside the archegonium of mosses and ferns


Supplement

In humans, the embryo refers to the growing organism after being a zygote and before being a fetus. The zygote becomes an embryo immediately after series of cell division. After the continuous cell division and differentiation in eight weeks, the embryo becomes a fetus in which the organism undergoes extensive organogenesis.


Word origin: Ancient Greek embruon (fetus), from en-, in- + bruō (grow, swell)

Related term(s):


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


An Overview of Embryonic Stem Cells

About 20 years ago,Murine embryonic stem cells(ES) were first discovered and since then ES have been shown to contribute to all cell lineages. In vitro, murine ES cells were found able to propagate indefinitely in the undifferentiated ...

See entire post
by 2444256703
Thu Jan 29, 2015 6:48 am
 
Forum: Cell Biology
Topic: An Overview of Embryonic Stem Cells
Replies: 0
Views: 554

Re: in a human embryo does the cartilage form before muscles?

Fa sho...assuming ur talking bout skeletal muscle. Both are from mesoderm.....somites form vertebral column around notochord.

See entire post
by gottatagit
Sat Nov 15, 2014 5:18 am
 
Forum: Human Biology
Topic: in a human embryo does the cartilage form before muscles?
Replies: 1
Views: 698

in a human embryo does the cartilage form before muscles?

in a human embryo does the cartilage form before muscles?

See entire post
by mall
Tue Oct 21, 2014 2:43 pm
 
Forum: Human Biology
Topic: in a human embryo does the cartilage form before muscles?
Replies: 1
Views: 698

Evolution/creation of marsupium:

Is it possible to plant/incorporate an embryo on leech? http://www.safeproject.net/wp-content/uploads/2012/11/2012-11-28-16.44.091.jpg

See entire post
by enarees
Sat Sep 13, 2014 8:28 am
 
Forum: Zoology Discussion
Topic: Evolution/creation of marsupium:
Replies: 3
Views: 1484

Recessive and dominant genetics - Pitx1 case study

... a question that is pretty basic but still stumping me (maybe from burning my eyes with endless hours of reading) Question: How would a mouse embryo differ from the ones pictured above if the scientists were able to modify the regulatory regions of the mouse Pitx1 gene to be similar to those ...

See entire post
by scienceguy914
Mon Sep 08, 2014 1:44 am
 
Forum: Genetics
Topic: Recessive and dominant genetics - Pitx1 case study
Replies: 0
Views: 3273
View all matching forum results

This page was last modified 09:26, 3 March 2011. This page has been accessed 67,277 times. 
What links here | Related changes | Permanent link