Fertilization

Question 1

Conception

Answer 1

Secondary oocyte can be fertilizaed for abt 24 hrs after ovulation

Question 2

Sperm Life time

Answer 2

can remain viable after 48-72 hrs within female reproductive tract
3 day window

Question 3

Fertilization

Answer 3

Occurs in outer one thrid of fallopian tube, during this produce the membrane around the acrosome (sperm head) becomes fragile

Question 4

Dizygote

Answer 4

Fraternal twins occur when two separate eggs are fertilizated

Question 5

Monozygote

Answer 5

identical twins occur when a single egg is fertilized but dividing cells breaks into two groups

Question 6

Zygote

Answer 6

undergoes rapid mitotic cell division

Question 7

Blastocyst

Answer 7

Cell develop into hollow ball of cells

Question 8

implantation

Answer 8

Blastocyst nourish by glycogen from glands of endometrium
At abt 6 days after ovulation blastocyst impants in endometrium

Question 9

Primary Germ Layer

Answer 9

Endoderm
MesoDerm
Ectoderm

Question 10

Gestation period

Answer 10

First trimester zygote, morula, blastocyst after implantation becomes a embyro

Question 11

Embryonic phase

Answer 11

last from fertilization til w8 of gestation when it becomes a fetus

day 35 heart is beating, eye and limb are formed
end of 3rd month placenta is functioning
4th month all organ systems are formed and functioning