meninges. 1. Three protective membranes surrounding the brain and spinal cord. From the inner to the outer membrane they are: the pia mater, arachnoid, and dura mater. 2.Three layers of membraneâthe pia mater, arachnoid mater, and dura materâthat surround the brain and spinal cord.eninges. 1. Three protective membranes surrounding the brain and spinal cord. From the inner to the outer membrane they are: the pia mater, arachnoid, and dura mater. 2.
Chlamydia is a common sexually transmitted disease (STD) caused by infection with Chlamydia trachomatis. It can cause cervicitis in women and urethritis and proctitis in both men and women.
Chlamydia can be transmitted during vaginal, anal, or oral sex. Chlamydia can also be passed from an infected mother to her baby during vaginal childbirth. Any sexually active person can be infected with chlamydia. The greater the number of sex partners, the greater the risk of infection.