fertilization and early embryonic development

Question 1

atresia definition

Answer 1

death of follicle

Question 2

what restarts oogenesis during prophase 1 rest

Answer 2

puberty attainment

Question 3

what restarts oogenesis after metaphase 2 rest

Answer 3

ovulation

Question 4

what restarts oogenesis to finish meiosis 2

Answer 4

sperm binds to zona pellucida

Question 5

acrosomal reaction

Answer 5

sperm binds to zona pellucida

Question 6

where does capacitation initiate, where is it completed

Answer 6

uterus, completed in oviduct

Question 7

retrograde loss

Answer 7

sperm spilling out of vagina after deposition

Question 8

what is capacitation

Answer 8

removal of the cytoplasmic droplet, sperm competent to bind to oocyte

Question 9

what helps initiate capacitation

Answer 9

hyperactivation

Question 10

how long does capacitation and hyperactivation take

Answer 10

1-6 hours

Question 11

polyspermy block

Answer 11

cortical reaction, prevents more than one sperm from entering oocyte

Question 12

events that sperm must undergo before fertilization

Answer 12

-capacitation
-hyperactivation
-binding to ZP
-acrosomal reaction

Question 13

event that happens after fertilization

Answer 13

pronuclei formation

Question 14

morula phase

Answer 14

32-64 cells

Question 15

blastocyst phase

Answer 15

cells uncountable and condensed, fluid pocket formed

Question 16

name of fluid in blastocyst phase

Answer 16

blastoceole

Question 17

name off cells in 2 cell embryo

Answer 17

blastomeres

Question 18

embryo phase immediately after hatching from ZP

Answer 18

tubular embryo

Question 19

why does embryo need to elongate to implant

Answer 19

to fill uterine space