Uterus + Vagina Flashcards
1
Q
uterus anatomy
A
- thick walled, muscular, organ in shape of inverted pear
- forward tilted position between vagina + rectum
- connects uterine tubes + vagina
2
Q
3 layers of uterus
A
- serous perimetrium (outer)
- myometrium (middle)
- endometrium (inner)
3
Q
myometrium
A
- muscular middle layer of uterus
- expands during pregnancy
- contracts during labor
4
Q
endometrium
A
- nourishes embryo
- where embryo completes development
- if not pregnant, sheds every ~28 days via menstruation
5
Q
3 regions of uterus
A
- fundus
- body
- cervix
6
Q
fundus
A
- upper region of uterus
- during pregnancy, height can be measured from top of pubic bone
- measurement provides growth rates & crude indication of abnormality (breech, twins, etc)
7
Q
body of uterus
A
- middle region
- receives fertilized ovum –> implants in endometrium to receive nourishment
- where ovum –> embryo –> fetus –> full gestation
8
Q
cervix
A
- lower region of uterus
- connects uterus to vagina via small opening
- changes in size and texture
9
Q
cervix changes prior to ovulation
A
swells, softens, + secretes mucus to provide better access/viability for sperm
10
Q
cervix changes post fertilization
A
- mucus plug develops inside cervix
- cervix stays firm + closed
11
Q
mucus plug
A
develops in cervix after fertilization to prevent bacteria/ pathogens from entering the uterus and harming fetus
12
Q
vaginal canal aka
A
vagina
13
Q
vaginal canal anatomy
A
- elastic muscular tube from cervix to outside of body
- wall has 3 layers
14
Q
vaginal canal functions (3)
A
- receives penis during intercourse
- provides outlet for blood during menstruation
- serves as birth canal for baby
15
Q
inner tissue of vaginal wall
A
- lined with mucus from cervix
- has folds that can extend for birth and intercourse
