Cervix

*Cervix*
Cervix
	The human female reproductive system. The cervix is the lower narrower portion of the uterus.
	Cervix of 39-year-old multi-parous woman on 5th day of menstrual cycle 1.png
Details
Precursor	Müllerian duct
Artery	Vaginal artery and uterine artery
Identifiers
Latin	Cervix uteri
MeSH	D002584
TA	A09.1.03.010
FMA	17740
	Anatomical terminology [edit on Wikidata]

The cervix is the bottom part of the womb (uterus) of the female reproductive system. The cervix is about 1 inch long. It is in the shape of a cylinder. The shape changes during pregnancy. There is a thin, central cervical canal that runs through its length. This canal connects the womb and the vagina.^[1] The opening into the uterus is called the internal os. The opening into the vagina is called the external os. The lower part of the cervix bulges into the top of the vagina. The cervix has been written about since at least the time of Hippocrates, over 2,000 years ago.

References

↑ Myers KM, Feltovich H, Mazza E, Vink J, Bajka M, Wapner RJ, et al. (June 2015). "The mechanical role of the cervix in pregnancy". Journal of Biomechanics. Reproductive Biomechanics. 48 (9): 1511–1523. doi:10.1016/j.jbiomech.2015.02.065. PMC 4459908. PMID 25841293.

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[1] Myers KM, Feltovich H, Mazza E, Vink J, Bajka M, Wapner RJ, et al. (June 2015). "The mechanical role of the cervix in pregnancy". Journal of Biomechanics. Reproductive Biomechanics. 48 (9): 1511–1523. doi:10.1016/j.jbiomech.2015.02.065. PMC 4459908. PMID 25841293.

[1]

Human reproductive system
Female anatomy	Female reproductive system – Breasts – Cervix – Clitoris – Clitoral hood – Fallopian tubes – Bartholin's glands – Gräfenberg spot (G-spot) – Hymen – Labia – Ovaries – Skene's glands – Urethra – Uterus – Vagina – Vulva
Female physiology	Menstruation – Pregnancy – Childbirth – Lactation – Estrogen – Orgasm – Ovum
Male anatomy	Male reproductive system – Bulbourethral glands – Corpus cavernosum – Ejaculatory ducts – Epididymis – Foreskin – Frenulum – Glans penis – Penis – Prostate – Rete testis – Scrotum – Seminal vesicles – Seminiferous tubules – Sertoli cell – Spermatic cord – Testicles (testes) – Urethra – Vasa deferentia
Male physiology	Ejaculation – Erection – Orgasm – Semen – Sperm – Testosterone
Anatomy is the study of the parts of the body • Physiology is the study of how the body works