1st of week of development

Question 1

Germ cell or oocyte covered by granulosa ( Follicular cells) is called?

Answer 1

Follicle

Question 2

what do Granulosa cells secrete in primary follicles?

Answer 2

the membrane zona pellucida

Question 3

when the theca interna and theca externa will appear?

Answer 3

secondary follicle

Question 4

is a cluster of cell that surrounds the oocyte both in the ovarian follicle and after ovulation

Answer 4

cumulus oophorus

Question 5

The follicular cells lining the antrum form a layer called

Answer 5

the stratum granulosum

Question 6

which hormone the theca interna secrete?

Answer 6

Estrogen

Question 7

the function of theca externa

Answer 7

it is fibrous tissue that protects oocyte

Question 8

Fertilization

Answer 8

is a process by which
Male (Sperm) and Female (Ovum)
gametes unites with each other.

Question 9

in which region the fertilization occurs in the uterine tube?

Answer 9

This occurs in the ampullary region

of the uterine tube.

Question 10

HOW MANY PHASES OF OOCYTE PENETRATION BY THE SPERM?

Answer 10

3 PHASES

Question 11

DESCRIBE PHASE 1 of OOCYTE PENETRATION BY THE SPERM?

Answer 11

SPERMATOZOA PASS THROUGH THE CORONA

RADIATA

Question 12

DESCRIBE PHASE 2 of OOCYTE PENETRATION BY THE SPERM?

Answer 12

ONE OR TWO SPERMATOZOA PENETRATE

THE ZONA PELLUCIDA.

Question 13

DESCRIBE PHASE 3 of OOCYTE PENETRATION BY THE SPERM?

Answer 13

ONE SPERMATOZOON PENETRATES THE
OOCYTE MEMBRANE WHILE LOSING ITS OWN
PLASMA MEMBRANE.

Question 14

Capacitation

Answer 14

is a period of conditioning
(refining) in the female reproductive tract
7 hours.

Question 15

what happened during Capacitation?

Answer 15

• During this time, a glycoprotein coat and
  seminal plasma proteins are removed from the
  sperm
• Only capacitated sperm can pass through the
  corona cells and undergo the acrosome
  reaction.

Question 16

ACROSOMAL REACTION

Answer 16

Release of acrosomal enzymes (acrosin) allows
sperm to penetrate the zona, thereby coming in
contact with the plasma membrane of the oocyte

Question 17

CLEAVAGE

Answer 17

Zygote undergoes a series of mitotic divisions,

increasing the numbers of cells.

Question 18

cells, which become smaller with each

cleavage (division), are known as

Answer 18

blastomeres

Question 19

Approximately 3 days after fertilization

Zygote due to continues Mitotic division forms 16-cells Compact Embryo Known as

Answer 19

MORULA.

Question 20

no cavity between the cells in the ________

Answer 20

MORULA.

Question 21

How blastocyst form?

Answer 21

• Morula the compact ball of sixteen cell
• Looses gradually its compaction by developing
  the cavity between the cell
• Gradually, single cavity is formed, the
  Blastocele,
• At this time, the embryo is a Blastocyst.

Question 22

BLASOTOCYST consist of

Answer 22

1) BLASTOCELE (Cavity),
2) INNER CELL MASS (EMBRYOBLAST)
3) OUTER CELL MASS(TROPHOBLAST)

Question 23

IMPLANTATION.

Answer 23

Penetration Of The BLACTOCYST in the Endometrium

Of UTERUS

Question 24

describe 1st week of fertilization?

Answer 24

FROM ZYGOTE TO BLASTOCYST

Question 25

in lateral third of uterine tube

Answer 25

FERTILIZATION.(Conception)

Question 26

moves toward the uterus

Answer 26

ZYGOTE (fertilized oocyte)

Question 27

daughter cells formed from zygote

Answer 27

BLASTOMERES

Question 28

solid cluster of 12-16 blastomeres.

Answer 28

MORULA "Mulberry"

Question 29

Cyst fluid-filled structure

Answer 29

BLASTOCYST