home / medterms medical dictionary a-z list / apls (antiphospholipid antibody syndrome) definition Medical Definition of APLS (antiphospholipid antibody syndrome) Our Antiphospholipid Syndrome Main Article provides a comprehensive look at the who, what, when and how of Antiphospholipid Syndrome
Sperm motility describes the ability of sperm to move properly through the female reproductive tract (internal fertilization) or through water (external fertilization) to reach the egg.
The tail of the sperm-the flagellum-confers motility upon the sperm, and has three principal components: 1  a central skeleton constructed of 11 microtubules collectively termed the axoneme and similar to the equivalent structure found in cilia. 2  a thin cell membrane covering the axoneme.