Cervix In Health And Disease Flashcards
Metaplasia?
One type of mature cells convert to another type, hence HPV can easily invade and cause cancer
In menopause what happens to SCJ?
Move inwards
What percentage of smooth muscle fibres in stroma of cervix?
15
Pain fibres in cervix be due to?
Parasympathetic to S2 S3 S4
In pregnancy cervix?
Hypertrophies and becomes softer, increased vascularity so look blue
Thick white discharge?
Gonorrhoea
Strawberry surface?
C
Chlamydia can cause?
Adhesions
What percent of women will be infected with HPV at some point?
95
Trachelectomy?
Suture vagina to body of uterus but remove cervix
Difference of cervix in nulliparous woman and porous woman?
No kids- barrel chapped with a small circular external os at the centre of the cervix
Porous woman- bulky and external os is slit like
Layers of squamous epithelium?
Basal parabasal intermediate and superficial layer
What happens in menopause?
TZ recedes
Blood supply to cervix?
Uterine artery, descending branch
Lymphatic drainage in cervix?
Parametric obturator int iliacus and ext iliac common iliac
Nerve supply to cervix?
Pain fibres with the parasympathetic S2, 3 and 4
Stroma of cervix?
Collagenous connective fibres and approx 15 smooth muscle fibres
Function of cervix?
Produces mucus
Act as a barrier to infection
Holds pregnancy in place
Effaced and dilates in vaginal birth
Cervix changes in birth?
Hypertrophied, softer, more blood vessels, glands distended with mucus, ectropion (cells that line inside grow on outside), remains elongated
Cervical ectopic (erosion) happens how?
Due to oestrogen
Lack of oestrogen causes?
Atrophic cervicitis- non infectious inflammation
Strawberry cervix due to
Trichomaniasis
White cervix due to?
HPV
What is the 2nd most common cancer in women?
Cervix