cervical mucus


mucus

 [mu´kus] the free slime of the mucous membrane, composed of the secretion of its glands, various salts, desquamated cells, and leukocytes.cervical mucus that constituting the mucous membrane of the cervix" >uterine cervix; it undergoes chemical and physical changes owing to hormone stimulation during the menstrual cycle and plays an important role in helping spermatozoa travel inwards after coitus. See also discussion of the cervical mucus method of contraception, under contraception.fertile mucus see ovulation method of contraception.

cervical mucus

Highly hydrated (90% water) mucus secreted by endocervical glands, which contains electrolytes (calcium, sodium, potassium), organic compounds (e.g., glucose, glycerol), amino acids, enzymes and other proteins. Cervical mucus acts as a barrier (“infertile mucus”) during the early menstrual cycle and as a transport medium for sperm after ovulation (“fertile mucus”), at which time the aqueous component of the mucus is higher. Dried “fertile mucus” displays a ferning pattern.

cervical mucus

Gynecology A viscous fluid that plugs the cervical os, and prevents sperm and bacteria from entering the uterus; at midcycle, under estrogenic influence, CM becomes thin, watery, and stringy, and allows free passage of sperm into the uterus. See Cervical mucus method, Cervix.