The phrase genetic engineering, unfortunately, often conjures up images of macabre experiments resulting in Frankenstein-like monsters and the cold-hearted use of genetic information to create new social classes depending on our genes, as in the 1997 film Gattaca.2} However, genetic engineering can simply be defined as the manipulation or alteration of the genetic structure of a single cell or organism.
Medullary cavity. From Wikipedia, the free encyclopedia. The medullary cavity (medulla, innermost part) is the central cavity of bone shafts where red bone marrow and/or yellow bone marrow (adipose tissue) is stored; hence, the medullary cavity is also known as the marrow cavity.owever, the medullary cavity is the area inside any bone (long, flat, etc.) that holds the bone marrow.
The body cavity situated near the back of the human body, and includes the cranial cavity and vertebral cavity. Supplement. The dorsal body cavity consists of the cranial cavity that contains the brain, and the vertebral cavity (or canal) that contains the spinal cord.Compare: ventral body cavity. See also: body cavity. Please contribute to this project, if you have more information about this term feel free to edit this page.he body cavity situated near the back of the human body, and includes the cranial cavity and vertebral cavity. Supplement. The dorsal body cavity consists of the cranial cavity that contains the brain, and the vertebral cavity (or canal) that contains the spinal cord.