Morula Encyclopedia Article

Morula

The following sections of this BookRags Literature Study Guide is offprint from Gale's For Students Series: Presenting Analysis, Context, and Criticism on Commonly Studied Works: Introduction, Author Biography, Plot Summary, Characters, Themes, Style, Historical Context, Critical Overview, Criticism and Critical Essays, Media Adaptations, Topics for Further Study, Compare & Contrast, What Do I Read Next?, For Further Study, and Sources.

(c)1998-2002; (c)2002 by Gale. Gale is an imprint of The Gale Group, Inc., a division of Thomson Learning, Inc. Gale and Design and Thomson Learning are trademarks used herein under license.

The following sections, if they exist, are offprint from Beacham's Encyclopedia of Popular Fiction: "Social Concerns", "Thematic Overview", "Techniques", "Literary Precedents", "Key Questions", "Related Titles", "Adaptations", "Related Web Sites". (c)1994-2005, by Walton Beacham.

The following sections, if they exist, are offprint from Beacham's Guide to Literature for Young Adults: "About the Author", "Overview", "Setting", "Literary Qualities", "Social Sensitivity", "Topics for Discussion", "Ideas for Reports and Papers". (c)1994-2005, by Walton Beacham.

All other sections in this Literature Study Guide are owned and copyrighted by BookRags, Inc.

Morula

The morula is an early stage in the development of an embryo. After the sperm and egg unite to form the zygote within the fallopian tube, the cells of the zygote continue to replicate through the process known asmitosis. Thecilia lining the fallopian tube continue to beat, moving the developing mass of cells along towards the uterus. When development reaches the 16-cell stage, it is referred to as a morula. This morula is the form which reaches the uterus. The morula is a solid ball of cells, with no fluid or hollow interior. The change in the interior of the ball of cells occurs during the next stage of development, called the blastocyst stage.