Lab14

Question 1

The mail gonads or testes are made up of these coiled structures where sperm are produced

Answer 1

Seminiferous tubules

Question 2

This structure runs along the top of the testes it is the location where spermature and are temporarily stored

Answer 2

Epididymis

Question 3

In preparation of ejaculation the sperm move along the vast deferens and arrive first at this location which is just above the prostate gland

Answer 3

Ampulla

Question 4

Secretions from this structure are added at the ambula

Answer 4

Seminal vesicle

Question 5

A Milky solution that contains a buffer enzymes and nutrients is added to the semen by this gland

Answer 5

Prostate gland

Question 6

Semen is ejaculated from the penis from the end of this tubular structure

Answer 6

Urethra

Question 7

Eggs or OVA are produced stored and mature in this female reproductive system (hint the female gonads)

Answer 7

Ovaries

Question 8

Over mature inside of this bundle of cells inside the female gonad

Answer 8

Follicle

Question 9

Maturing follicles secrete this hormone which stimulates the growth of the uterine lining ( in case of pregnancy)

Answer 9

Estrogen

Question 10

When estrogen levels Spike around day 12 there is a surge of secretion of_____ from the anterior pituitary

Answer 10

Luteinizing hormone

Question 11

The ejection of the egg from the ovarian follicle is called

Answer 11

Ovulation

Question 12

Rapid growth of the follicle and the release of the egg occur around day _____ of the cycle

Answer 12

14

Question 13

Cilia on the inside surface of these finger like projections at the end of the fallopian tube help to draw the egg into the tube

Answer 13

Fimbriae

Question 14

The egg lives for_____ ( range it with units) and if not fertilize will be removed along with the uterine lining during menstruation

Answer 14

12-24 hours

Question 15

The technical term for the jelly coat discussed in the fertilization video is

Answer 15

zona pellucida

Question 16

The first step in a sperm’s attempt to fertilize an egg is the release of ____ from the tip of the head onto the jelly coat to digest the outer layer

Answer 16

Acrosomal enzyme

Question 17

Through polymerization of actin _____ is form and extends towards the vitelline envelope

Answer 17

Acrosomal process

Question 18

For fertilization to take place the eggs receptors must bind specificity to this protein on the sperm’s acrosomal process

Answer 18

Bindin

Question 19

After the plasma membranes of the sperm and the egg fuse _____ diffuses into the egg

Answer 19

Sodium

Question 20

Through a series of chemical reactions other sperm are prevented from fertilizing the egg. These steps are blocks to ____

Answer 20

Polyspermy

Question 21

Once all steps are taken to prevent more than one sperm from fertilizing the egg the egg creates a _____ in order to draw the sperms nucleus into the egg

Answer 21

Fertilization cone

Question 22

The fertilized egg ( egg + DNA from sperm) is diploid and is called

Answer 22

Zygote

Question 23

The product of an oocyte in the ovary is called

Answer 23

OoGenesis

Question 24

Prior to birth the ovaries produced this number of oocytes

Answer 24

2 million

Question 25

Fertilization of the egg occurs here in the fallopian tube

Answer 25

Ampulla

Question 26

How many sperm are ejected during a ejaculation

Answer 26

1/2 billion

Question 27

Following ejaculation into the vagina a few thousand sperm can reach the egg within this amount of time

Answer 27

10-15 mins

Question 28

The zygote undergoes mitotic division called

Answer 28

Cleavage

Question 29

The solid ball of cells that enters the uterine cavity is called a

Answer 29

Morula

Question 30

After 2 Days in the uterine cavity the growing organism becomes a hollow ball of cells called a

Answer 30

Blastocyst

Question 31

The technical term for the outer layer of cells that becomes the placenta and embryonic membrane is

Answer 31

Trophoblast

Question 32

The inner Cell mass is called the _____ which reflects what it grows into

Answer 32

Embryoblast

Question 33

The process of the blaster site embedding itself into the uterine wall is called

Answer 33

Implantation

Question 34

Implantation begins about _____ days after fertilization

Answer 34

7

Question 35

Pregnancy is initiated when this process takes place

Answer 35

Implantation

Question 36

The technical term of the differentiation and formation of the three germ layers is called

Answer 36

Gastrulation

Question 37

The three germ layers are named

Answer 37

1) endoderm (inner) 2) ectoderm (outer) 3) mesoderm (middle)

Question 38

This germ layer will become the skin and structures of the nervous system

Answer 38

Ectoderm

Question 39

This germ layer will become the bone muscle and connective tissue

Answer 39

Mesoderm

Question 40

This germ layer will become the linings of the respiratory and digestive tracts and the liver and pancreas

Answer 40

Endoderm

Question 41

The sperm releases a enzyme from the sperm's head that helps the sperm wiggle up to the egg

Answer 41

Acrosomal reaction

Question 42

The beginning stage of embryo approximately 100 cells in a hollow ball

Answer 42

Blastocyst

Question 43

Sperms final maturation step on which provides the sperm with speed this happens when sperm enters female reproductive tract

Answer 43

Capacitation

Question 44

The mitotic cell division of a fertilized egg a zygote becomes an embryo

Answer 44

Cleavage

Question 45

A progesterone secreting endocrine tissue that forms right after ovulation

Answer 45

Corpus luteum

Question 46

Unspecialized cells competitions and structures attain their adult function in a process called

Answer 46

Differentiation

Question 47

Human body cells that are two chromosomes that are called what

Answer 47

Diploid

Question 48

Cell development of 0 to 8 weeks is considered an

Answer 48

Embryo

Question 49

In this process sperm and egg combined and create a new individual

Answer 49

Fertilization

Question 50

Develops from an embryo into a _____ (8 weeks until birth)

Answer 50

Fetus

Question 51

The reproductive cells that unite to form a new individual are called

Answer 51

Gamete

Question 52

The process of becoming or forming an early embryo stage

Answer 52

Gastrulation

Question 53

To be carried in the womb is considered what period

Answer 53

Gestation period

Question 54

Half of the chromosomal set (one parent set of chromosomes)

Answer 54

Haploid

Question 55

The embryo attaching to the uterine wall is called

Answer 55

Implantation

Question 56

The release of a mature egg from an ovary

Answer 56

Ovulation

Question 57

The birth process

Answer 57

Parturition

Question 58

More than one sperm fertilizes an egg

Answer 58

Polyspermy

Question 59

The making of sperm is called

Answer 59

Spermatogenesis

Question 60

Closing of fallopian tube to prevent pregnancy

Answer 60

Tubal ligation

Question 61

To induce sterilism in men to prevent pregnancy

Answer 61

Vasectomy

Question 62

A glycoprotein coat that protects ovum

Answer 62

Zona pellucida

Question 63

Once an egg is fertilized it becomes a

Answer 63

Zygote