Embryo

Question 1

What are somatic cells?

Answer 1

Diploid Cells that make-up the body

Question 2

What are gamete?

Answer 2

The are haploid cells that donate genetic material to the offspring

Question 3

What’s meiosis?

Answer 3

Cell division producing haploid cells from diploid cells

Question 4

Gametogenesis

Answer 4

Formation of gametes that occurs in the gonads
It’s also the process by which a diploid or haploid cell undergo division and differentiation to form mature haploid gametes

Question 5

Spermatogenesis and oogenesis takes place through _____ process

Answer 5

Meiosis

Question 6

Spermatogenesis and oogenesis, ____ gametes cells produce ____ Sperm or eggs cell

Answer 6

Diploid cell
Haploid cells

Question 7

Spermatogenesis occur @

Answer 7

Seminiferous tubule

Question 8

Sperms mature @ ____ and is nourished by? For about ____ weeks

Answer 8

Epididymis
By sertoli cells for 10 weeks

Question 9

Spermatogenesis occurs through ____ phases? Which are?

Answer 9

3
Spermatogonial phase
Spermatocyte phase
Spermatid phase

Question 10

@ spermatogonial phase _____ division occurs?
To form ____ cells

Answer 10

Proliferate by mitosis to form Primary spermatocyte
Diploid

Question 11

@ spermatocyte phase _____ division occurs?
____ type of cell is formed?

Answer 11

Meiosis
Haploid cells
Forming secondary spermatocyte

Question 12

How many meiosis occurs in spermatogenesis?

Answer 12

2

Question 13

What types of division occurs in meiosis 1 and forms
And meiosis 2 and forms

Answer 13

Reduction division to form secondary spermatocyte
Equatorial division to form spermatids

Question 14

What occurs in spermatid phase?

Answer 14

Spermatid are differentiated into spermatazoa

Question 15

One primary spermatocyte forms ____ sperm?

Answer 15

4

Question 16

One secondary spermatocyte forms ____ sperm?

Answer 16

2

Question 17

One primary oocyte results in the formation of ____ mature oocyte

Answer 17

1

Question 18

The acrosome is derived from _____ of spermatid
Function of acrosome

Answer 18

golgi region
Hydrolytic Enzyme that helps in egg penetration

Question 19

In spremiogenesis is most of the cytoplasm shed?

Answer 19

Yes

Question 20

Sperm dies in _____ time
Bt survive in femal genitalia for____

Answer 20

48hrs
4days

Question 21

What’s azoospermia
Aspermia
Necrospermia

Answer 21

Azoospermia–no sperm in semen
Aspermia– no sperm production
Necrospermia– all sperm are dead

Question 22

What cell produces testosterone?

Answer 22

Leydig cells

Question 23

Oogenesis occurs at____&

Answer 23

Ovarian follicle of the ovaries and in the oviduct

Question 24

Oogonia is present in ____ part of the overy
And when is it produced? B4 or afer birth?

Answer 24

Cortex of the overy
B4 birth & doesn’t multiply after birth

Question 25

Oogenesis starts in early fetal life

Answer 25

T

Question 26

All oocyte go into meiotic arrest when they reach ____ stage of division in fetal life

Answer 26

First meiosis division

Question 27

Primary oocyte remain in ____ phase of the 1st meiotic division?

Answer 27

Prophase untill puberty

Question 28

Secondary oocyte is arrested at ____ phase of meiosis 2 division?

Answer 28

Metaphase until fertilization takes place

Question 29

The completion of each meiosis 1 and 2 results in the formation of _____

Answer 29

Polar bodies i.e 2 polar bodies are formed in oogenesis

Question 30

What's the process is oogenesis

Answer 30

Oogonia divides by mitosis to form primary oocyte Pri oocyte begins to undergo meiosis but stops at prophase until puberty the complete it to form sec oocyte and a polar body Secondary oocyte is released from the overy then undergoes meiosis 2 but stops @ metaphase until fertilization takes place the it completees it then matured oocyte are formed with a polar body if not it degenerates

Question 31

The empty follicle remaining after the secondary oocyte is released forms?

Answer 31

Carpus luteum in 10 days with out fertilization of the oocyte it degenerates

Question 32

When meiosis 2 is completed by the oocyte it forms?

Answer 32

Ootid and ovum

Question 33

What's the function of polar bodies?

Answer 33

It discards the extra haploid set of chromazone thats created by meiosis

Question 34

The mestral cycle is controlled by?

Answer 34

Hypothalamus

Question 35

Average menstrual cycle repeats itself every?but can range from ___ to ____

Answer 35

28 days 21-40 days

Question 36

How does the the hypothalamus control Ovarian cycle?

Answer 36

It releases Gonadotropin Releasing Hormone that stimulates the Anterior pituitary gland which secrets Gonadotropin

Question 37

What are the phases of menstrual cycle?

Answer 37

Menstrual phase(1-5 days) Proliferation phase(6-14 days) Luteal phase (15-27 days) Ischemia phase( 28{1 day})

Question 38

_____ follicular cell is thought to promote angoigenesus

Answer 38

Theca externa

Question 39

What signinifies the formation of secondary follicle?

Answer 39

Formation of the antrum A fluid filled space

Question 40

What signinifies the maturation of secondary follicle?

Answer 40

Follicular stigma

Question 41

What's the function of theca interna?

Answer 41

Production of follicular fluid and production of estrogen

Question 42

Ovulation is triggered by the surge of______ production This surge is caused by______ produced by?

Answer 42

Lieutinizing Hormone Estrogen produced by theca interna

Question 43

Abdominal pain that accompanies ovulation is called?

Answer 43

Mittleschmerz

Question 44

The carpus luteum produces?

Answer 44

Progesterone mainly and some estrogen to prepare the endometrium for implementation

Question 45

The degeneration of the carpus luteum is prevented by_______ which is produced by?

Answer 45

Human Chronic Gonadotropin by syntiotrophoblast

Question 46

Carpus luteum if pregnancy is active until ____ week of pregnancy?

Answer 46

20 weeks

Question 47

If fertilization doesn't take place the carpus luteum degenerates @ _____ after ovulation

Answer 47

10-212 days

Question 48

_____ to _____ ml of blood is lost during menstrual cycle?

Answer 48

20-80 ml

Question 49

Emission of sperm is a _____ response?

Answer 49

Sympathic

Question 50

The sperm is slow @ ____ environment but fast @ ____

Answer 50

Acidic Basic

Question 51

Maturation of sperm is called?

Answer 51

Capacitation Fresh sperm can't fertilize

Question 52

Capacitation occurs @ ____

Answer 52

Uterus

Question 53

Capitation and acrosimal rxn is regulated by?

Answer 53

Tyrokinase and src kinase

Question 54

Sperm counts for less than 10% of semen

Answer 54

T

Question 55

____ and ____ enters the cytoplasm of the secondary oocyte by_____ stays behind?

Answer 55

Head and tail Mitochondria and membrane

Question 56

What's zona reaction?

Answer 56

The reaction that takes place after fertilization to prevent other sperms from coming in