Anatomy of Uterus, Cervix, and Vagina Flashcards
The lower segment of the cervix extends slightly into the vaginal canal which forms the _____
Vaginal fornicies
The vaginal wall should mot exceed ___ in thickness
1cm
The average vaginal cuff should measure _____
1.4cm
What is the inner mucous layer of the uterus
Endometrium
What us the muscluar layer of the uterus
Myometrium
What is the outer serous layer of the uterus
Perimetrium or serosa
____ : the opening from the uterus into the cervix
Internal os
___: opening from cervix to vagina
External os
The corpus is another name for what part of the uterus
Body
___: lower portion of the corpus connected to the cervix
Isthmus
___: the short segment between the body and cervix in a pregnant patient
Lower uterine segment
What structure connects the uterine cavity with the vagina
Cervix
What are the two layers of the endometrium
- supeficial/ functional layer
- deep or basal layer
Which layer of the endometrium is shed during menstruation
Functional layer
What ar the ligaments that suspend the uterus in the pelvic cavity
- round
- cardinal
- uterosacral
What is the relationship of the uterus to the bladder ans rectosigmoid colon
- posterior to blader
- anterior to rectosigmoid colon
Size of nulliparous uterus
- length: 6-8.5cm
- AP: 2-4cm
- width: 3-5cm
Normal uterus mmts for multiparous women
- length: 8-10.5cm
- AP: 3-5cm
- width: 4-6cm
In a neonatal uterus the Cervix is larger or smaller than the body/ fundus
2x larger
In a multiparous adult what is the body to cervix ratio
Body is 2x linger than cervix
What is the uterine position where the uterus forms less than a 90 degree angle with the cervix
Anteverted
What uterine position is sen when the uterine body has a sharp angle with the cervix
Anteflexed
What uterine position is shown when the uterine body tips posteriorly with a small angle between the corpus ans the cervix
Retroverted
What uterine position is shown when the uterine body folds posteriorly at a very sharp angle toward the cerix
Retroflexed
___: uterine body flexed to the right
Dextroflexed
___: uterine body flexed to the left
Levoflexed
___: entire uterus is displaced to the left
Levoposition
What is the msot common uterine position
Anteverted
What is the normal flow of uterine artery
Moderate velocity with high resistance
What is the relation of the internal iliac artery to the vein
Anterior
The uterine artery is an anterior segment branch of what vessel
Internal iliac artery
The vaginal artery branches from what
Uterine artery
How is blood supplied to the ovaries
Uterine artery and ovarian artery
The uterine atery gives rise to what
Arcuate arteries
Where can arcuate arteries been seen
Around th periphery of the uterus
The arcuate arteries give rise to what
Radial arteries
Radial arteries branch into what arteries
Spiral and straight arteries
Straight arteries supply what part of the uterus
Endometrium
Spiral arteries supply what part of the uterus
Functional layer of the endometrium
The uterine veins empty into what
Internal iliac veins
The internal and external iliac veins merge together to form what
Common iliac vein
