, FERTILISATION (the fink) a Blastocyst differiation
: fusion of sparm 2
secondary occyle to form
a) Cyto-trophoblasts : retain their normal alls boundaries
zygote b) 2 crode the endometrium , endomenial blood.
Syncytiotrophoblast invade conceptus sirs within
Pregnancy : all evens from fertilisation > birth (540 weeks gestation) [ Secretes human chorionic gonadotrophin↓ T >
highest in first 3 months nausea
maintains the Interm
-
remitting
corpus
from Syncytium (single
to sustain
mass) progesterme production
Gestation age : the last menstrual period to birth (-280
days/48 weeks) ,
not from ovulation > multi-nucleated pregnancy
(t week 2 ⑪ Endometrium seals over the
blastocyst , completing implactation (day (2)
-
3)
nei mac ti
and
Conaptustrm Zygae (Sweeks) Foetus (9 weeks)
: >
Embryo <
-
LphChai) Placentation (Day 12 -
16) (nhau thai
&
expands
ovulation) ① Erophoblast-inner all chiric/feral placence). chorionic villi maternal blood
Timming (days before supply
> >
part of
+
① (1
day
mass
within 3
day 16
must meet after
:
Sperm cocyte days ↓
hCG instead ↑ nurrient 2
↓
churia Secretes
syncytiotrophoblast exchange
~
after (xt gas
-
Sperm viable 24-40h ejaculation tinh) oocytes
,
viable 12-29 his after ovulation provide O2 2 nutrient
surface
② Chorionic villi -> maternal endimential tissue > placenta remove wastes
① Pathof sperm
Produce hormones (hCG
, progesterone , estrogen
⑦ Sperms ejaculate inso vagina , some lost
immediately ③ Week 4 5 .
I
chorionic villi are
fully interfaced with endometrial blood
> Coagulation of semen
keeps some
sperm in fornixes forms umbilical vessels
② passing through unicat canal sures , urine sabe by
ontractions
2 reverse peristalsis Endometrial tissues> decidua basalis + decidna capsularis
↳ Immune barriers of female kill
many sperm ② week 13 Ferns float
freely wishin amniotic say
supported by placenta + umbilical veins
~
⑤ hundreds
oocyte (= kom] takes
only small of userine wall
only reach the
up a amount
① Capacitation (hoar how trungsinh => fully functional after 3 machs
gestation
biomechanical in the female tract (2-102)
⑧ Sperms undergo changes ① More Maternat 2 feral blood separed
by thin barrier in the chorionic villi prevents
:
a
mixing
⑥ Removes cholesterol ↑ 2 release of acrosomal
coat +activation
mobility
>
enzymes
⑧ Enables sperm to penetrate zona
pellucida of Embryonic Development
oocytes
ter fertilization
Day 7 a inner cell mast
splits Camniotic +
bilayered embryonic disc .
:
cavity
Stages of Certilisation
Day 12 :
embrymic dis
begins to differiace ecoterm skin,
① Sperm approach>
nervous
:
system
more
through granulosa alls of corona radiate
Day I : Gastulation I embryonic dises form three
primary germ layers mesoterm : muscles connective tissues
, ,
organs
② Acrosomal reaction : hundreds release enzymes to
digest zona
pellucida) allows me to
pass endoderm :
digestive 2
respiratory linings
has all
③ 1 sperm. -
coyle membrane via
oocyte receptor > allows fusion (fertilisation)
= By week 8
, embryo (30mm
long) recognizable organ systems
④ Polyspermy hardens
pellucidays block
Carrical
block , granules exocytozed
Changes during
the other
are , zona
sprson
>
-
rayle receptors are shed pregnancy
Anatomical Treproductive organ vessels
Implantation (I am tel) ↑ breast size ,
arcolae darken /di ribicten) (due se T
granular gland)
⑪ Cleavage Zygore
travels to wine rabe while
undergoing mirusis > form a movula
(blastocys (day 4 -
5) ↑ uterus size (fis sized >
-
xiphoid level)
(breathing difficulty
↑
Blaskyst travelling diaphragm pressure
, is fuelled
by wrine contraction & its
af plasm
to
E
② When endothelial
lining is ready
, blastocyt implant Lordosis
lay ling) I back pain
(secretory phase) Weight gain =13
Seg
> If ready blastocyst float ThRL
down endothelial
rady/or until is dies Metabolic spare maternal gestational diabetes
not
to weres
lining glucose
, until is ,
> Blastocyst contains Erophoblast alls (outer Layer) : Nourish -
protect the
embryo
↑ relaxin , loosens pelvic
lig + Respiration : tidal velume T50E ,
difficulty breathing , no
Respiratory rose
Cardiovasculation ↑ blood volume 40 %>
Inner all mass : form
embryo inself
:
provide blood for mother 2 focus
Urinary : Turine output - I bladder pressure /GI. nausea, (thCG) heartburn from pressure
vaniting ,
: fusion of sparm 2
secondary occyle to form
a) Cyto-trophoblasts : retain their normal alls boundaries
zygote b) 2 crode the endometrium , endomenial blood.
Syncytiotrophoblast invade conceptus sirs within
Pregnancy : all evens from fertilisation > birth (540 weeks gestation) [ Secretes human chorionic gonadotrophin↓ T >
highest in first 3 months nausea
maintains the Interm
-
remitting
corpus
from Syncytium (single
to sustain
mass) progesterme production
Gestation age : the last menstrual period to birth (-280
days/48 weeks) ,
not from ovulation > multi-nucleated pregnancy
(t week 2 ⑪ Endometrium seals over the
blastocyst , completing implactation (day (2)
-
3)
nei mac ti
and
Conaptustrm Zygae (Sweeks) Foetus (9 weeks)
: >
Embryo <
-
LphChai) Placentation (Day 12 -
16) (nhau thai
&
expands
ovulation) ① Erophoblast-inner all chiric/feral placence). chorionic villi maternal blood
Timming (days before supply
> >
part of
+
① (1
day
mass
within 3
day 16
must meet after
:
Sperm cocyte days ↓
hCG instead ↑ nurrient 2
↓
churia Secretes
syncytiotrophoblast exchange
~
after (xt gas
-
Sperm viable 24-40h ejaculation tinh) oocytes
,
viable 12-29 his after ovulation provide O2 2 nutrient
surface
② Chorionic villi -> maternal endimential tissue > placenta remove wastes
① Pathof sperm
Produce hormones (hCG
, progesterone , estrogen
⑦ Sperms ejaculate inso vagina , some lost
immediately ③ Week 4 5 .
I
chorionic villi are
fully interfaced with endometrial blood
> Coagulation of semen
keeps some
sperm in fornixes forms umbilical vessels
② passing through unicat canal sures , urine sabe by
ontractions
2 reverse peristalsis Endometrial tissues> decidua basalis + decidna capsularis
↳ Immune barriers of female kill
many sperm ② week 13 Ferns float
freely wishin amniotic say
supported by placenta + umbilical veins
~
⑤ hundreds
oocyte (= kom] takes
only small of userine wall
only reach the
up a amount
① Capacitation (hoar how trungsinh => fully functional after 3 machs
gestation
biomechanical in the female tract (2-102)
⑧ Sperms undergo changes ① More Maternat 2 feral blood separed
by thin barrier in the chorionic villi prevents
:
a
mixing
⑥ Removes cholesterol ↑ 2 release of acrosomal
coat +activation
mobility
>
enzymes
⑧ Enables sperm to penetrate zona
pellucida of Embryonic Development
oocytes
ter fertilization
Day 7 a inner cell mast
splits Camniotic +
bilayered embryonic disc .
:
cavity
Stages of Certilisation
Day 12 :
embrymic dis
begins to differiace ecoterm skin,
① Sperm approach>
nervous
:
system
more
through granulosa alls of corona radiate
Day I : Gastulation I embryonic dises form three
primary germ layers mesoterm : muscles connective tissues
, ,
organs
② Acrosomal reaction : hundreds release enzymes to
digest zona
pellucida) allows me to
pass endoderm :
digestive 2
respiratory linings
has all
③ 1 sperm. -
coyle membrane via
oocyte receptor > allows fusion (fertilisation)
= By week 8
, embryo (30mm
long) recognizable organ systems
④ Polyspermy hardens
pellucidays block
Carrical
block , granules exocytozed
Changes during
the other
are , zona
sprson
>
-
rayle receptors are shed pregnancy
Anatomical Treproductive organ vessels
Implantation (I am tel) ↑ breast size ,
arcolae darken /di ribicten) (due se T
granular gland)
⑪ Cleavage Zygore
travels to wine rabe while
undergoing mirusis > form a movula
(blastocys (day 4 -
5) ↑ uterus size (fis sized >
-
xiphoid level)
(breathing difficulty
↑
Blaskyst travelling diaphragm pressure
, is fuelled
by wrine contraction & its
af plasm
to
E
② When endothelial
lining is ready
, blastocyt implant Lordosis
lay ling) I back pain
(secretory phase) Weight gain =13
Seg
> If ready blastocyst float ThRL
down endothelial
rady/or until is dies Metabolic spare maternal gestational diabetes
not
to weres
lining glucose
, until is ,
> Blastocyst contains Erophoblast alls (outer Layer) : Nourish -
protect the
embryo
↑ relaxin , loosens pelvic
lig + Respiration : tidal velume T50E ,
difficulty breathing , no
Respiratory rose
Cardiovasculation ↑ blood volume 40 %>
Inner all mass : form
embryo inself
:
provide blood for mother 2 focus
Urinary : Turine output - I bladder pressure /GI. nausea, (thCG) heartburn from pressure
vaniting ,
