Laras notes Flashcards
Where does fertilisation occur
Ideally in wider part of fallopian tube
Normal haemoglobin rate?
11-15g/dl
Normal fetal heart rate?
110-160 bpm
Naegles rule?
1st day of last period plus 9months nd 7days
When is placenta fully formed?
10 weeks after fertilisation
What r the two membranes of the placenta
Amnion=inner
Chorion=outer
Derived from trophoblast
How many arteries/veins in umbilical cord nd what r functions of each?
AVA
2Arteries= bring deoxygenated blood & waste products from the fetus to the placenta
1Vein= brings oxygen and nutrients from the placenta to the fetus
What does amniotic fluid consist of
99% water
1% dissolved solid matter (food +waste)
Abnormal constituents=meconium+ blood
How much amniotic fluid at 20 weeks
350-450mls
How much amniotic fluid by 36-39wks
700-1l
Whats the weight of the placenta
1/6th of the babys weight
Where is placenta and when does it separate
Its in upper uterine segment
It separates in third stage of labour
Measurements of placenta
20cm in diameter
2.5cm at centre
Layers of the vagina
Mucosa=sueprficial layer
Muscle
Fascia=surrounds vagina and adjacent pelvic organs
What r the three superficial muscles of the perineum
Bulbocavernosus muscles
ð Ischiocavernous muscles
ð Transverse perineal muscles
What r the two superficial muscles of pelvic floor
Urogenital triangle
ð External anal sphincter
What r the two deep pelvic floor muscles
Levator ani
ð Coccygeus
Whats the top of the uterus called in pregnancy
Fundus
What does a 1st degree tear involve
the skin of the fourchette
What does a 2nd degree tear involve
skin of the fourchette
the superficial perineal muscle
What does 3rd degree tear involve
skin of the fourchette,
the superficial perineal muscle,
& damage to the anal sphincter
Odema (common disorder in pregnancy)
Swelling of gums
Pica (common disorder in pregnancy)
Craving unusual and unedible things
Ptyalism (common disorder in pregnancy)
Increased saliva
Heartburn/Pyrosis (common disorder in pregnancy)
Burning sensation due to relaxation of lower oesophagal sphincter
Hemmorhoids (common disorder in pregnancy)
Swollen veins at or near anus
Leucorrhea (common disorder in pregnancy)
Increase in amount of vaginal dischage
Vaginal thrush (common disorder in pregnancy)
Yeast infection of mucous membrane of vag
Epistaxis (common disorder in pregnancy)
nosebleeds
Syncope (common disorder in pregnancy)
Fainting
Whats the increase of vaginal discharge during pregnancy called?
Leucorrhea
Whats involved in stage 1 of labour
Contractions until dilation of 10cm
Whats involved in stage 2 of lavour
full dilation until birth
Whats involved in stage 3 of lavour
Separation + expulsion of placenta and the membranes
Why should a preggerrs woman sit in an upright position
To prevent aortocaval occlusion (compressionof inferior vena cava and aorta)
Dimensions of non pregnant uterus
7.5cm long X 5cm wide X 2.5cm thick
60g
Dimensions of preggnant uterus
30cm long X 23cm wide X 20xm thick
1kg
3 layers of tissue in cervix:
Endometrium = inner layer
ð Muscle layer
ð Peritoneum layer
Function of oestrogen
Stimulates gwoth of cells in lining of uterus vagina and cervix
Function of progesterone:
Builds up lining of uterus for fertilization
Initiates secretory phase of the endometrium
Signals the pituitary to stop producing LH
What r the antenatal blood tests
ABO blood group
RH antigen
Full blood count
Sutures of fetal skull
ð Lambdoid suture
ð Sagittal suture
ð Coronal suture
ð Frontal suture
Vault of fetal skull consists of:
ð 2 frontal bones
ð 2 parietal bones
ð 2 temporal bones
ð 1 occipital bones
What three sections is fetal skull made up of
- The fetal skull is made up of:
ð Vault
ð Face
ð Base
whatte the 4 types of female pelvises
Gynaecoid
ð Platypelloid
ð Anthropoid
ð Android
What r the three regions if the pelvis
The pelvic brim
ð The pelvic cavity
ð The pelvic outlet
What are the 4 pelvic bones
ð The sacrum (= 5 fused vertebrae)
ð The coccyx (=4 fused vertebrae)
ð 2 innominate bones, each composed of 3 parts :
o The ilium
o The ischium o The pubis
Need layers of eymbro development and 2 genital trianglws