all the nerve cells and nervous tissues in an organism, including, in the vertebrates, the brain, spinal cord, ganglia, nerves, and nerve centers: it coordinates and controls responses to stimuli and conditions behavior and consciousness.
Cervical polyps are small, elongated tumors that grow on the cervix. The cervix is the narrow canal at the bottom of the uterus that extends into the vagina. The cervix connects the uterine cavity and the upper portion of the vagina. It acts as the passageway for sperm to fertilize an egg, which could result in pregnancy. During labor, the cervix becomes thinner and wider.
All rights reserved. The cervix is a cylinder-shaped neck of tissue that connects the vagina and uterus. The cervix is made of cartilage covered by smooth, moist tissue, and is about 1 inch across. There are two main portions of the cervix: 1  The part of the cervix that can be seen from inside the vagina during a gynecologic examination is known as the ectocervix. 2  The endocervix, or endocervical canal, is a tunnel through the cervix, from the external os into the uterus.