Improve Your Understanding of Anatomy and Physiology by Mastering Embryology

The study of embryology or the study of the unborn provides amazing clues which can be used to master the study of anatomy. Get ready to master gross anatomy.

 

What Is Embryology?

(Greek, en = in + bryein = to be full of) Embryology is the science of studying embryo development, which is usually applied to all development before birth (in humans, included both the embryonic and fetal period).

Embryo

(Greek, en = in + bryein = to be full of)
An egg that has been fertilized by a sperm and undergone one or more divisions. Also the set of early developmental stages in which a plant or animal differs from its mature form.

Embryoblast

(inner cell mass, Greek, en = in + bryein = to be full of and -blast, a primordial cell)
The cellular mass component of the blastocyst that will give rise to the embryo. The remainder of cells that form the wall are the trophoblast cells.

Embryonic Cell Cycle

Term describing the rapid rounds of mitosis occurring in early development following fertilisation. Cells alternate between mitosis and duplication of DNA without intervening growth periods (M, S, M phases) compared to the normal adult cell cycle that includes growth periods between each of these phases (M, G1, S, G2, M phase). Each round of cell division results in cells smaller in cytoplasm size that divide again before growth occurs.
 

 

 

Advertisements

Leave a comment

Filed under Anatomy Notes

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s