Lab 3 Exam

Question 1

Conception

Answer 1

Occurse in uterine tubes, genetic matieral from the sperm and egg join t oform a single cell called a zygote

Question 2

Cleavage

Answer 2

zygote begins to divide

Question 3

Blastomere

Answer 3

two identical cells in the zygote (and 4 and 8)

Question 4

Morula

Answer 4

16 cell stage forms 3 days after conception and enters uterus by day 6

Question 5

Blastula

Answer 5

Morula develops into blastula (also called blastocyst in humans)
fluid filled cavity (blastocoele) develops in center
development of inner cell mass (embryoblast)
Outer group of cells called trophoblasts form membranes that nourish embryo

Question 6

Trophoblast

Answer 6

outer group of cells on blastula that form mebrane and nourish embryo

Question 7

Blastocyst

Answer 7

containing 200-300 cells which implants on the endometrium 6-7 days after conception

Question 8

Stages of uterine cycle

Answer 8

Proliferative (glands are small and tubular, shrinkage of tissue creates false space AROUND gland)
Secretory (glands have saw-tooth appearance and with no false space around gland)
Menstrual (hell)

Question 9

1st month

Answer 9

Embryonic stage
-Brain and spinal cord begin development
-heartbeat begins fourth or fifth week

Question 10

2nd month

Answer 10

heart is fully formed by week 8
arm/leg buds are visible

Question 11

3rd month

Answer 11

Fetal stage begins at week 11
-begins period of fast growth
-external features well formed

Question 12

4th month

Answer 12

-gender is identifiable
-develops reflex for sucking

Question 13

5th month

Answer 13

-lanugo begins to cover the skin
-fetus begins making active movements

Question 14

7th month

Answer 14

sufficient lung development (but no surfactant)
fetus can survive birth

Question 15

Epididymis

Answer 15

site of sperm maturation and storage

Question 16

Corona radiata

Answer 16

granulosa cells directly surrounding the oocyte. The cells are released with the oocyte at ovulation

Question 17

cumulus oophorus

Answer 17

cluster of cells that attaches the oocyte to the wall of the follicle

Question 18

zona pellucida

Answer 18

glycoprotein membrane surrounding the oocyte;
contains sperm receptors and is digested by acrosome

Question 19

Identify blurred out red

Answer 19

Vas deferens

Question 20

Identify yellow arrow

Answer 20

Ejaculatory duct

Question 21

Identify

Answer 21

Urinary bladder

Question 22

Identify circled area

Answer 22

Prostate gland

Question 23

Identify gland

Answer 23

Seminal gland

Question 24

Identify circle

Answer 24

Bulbourethral gland

Question 25

Identify red line

Answer 25

Urethra

Question 26

Identify top arrow

Answer 26

Epididymis

Question 27

Identify bottom arrow

Answer 27

Testes

Question 28

Identify whole thing

Answer 28

Scrotum

Question 29

Identify tail

Answer 29

Flagellum

Question 30

Identify portion of sperm

Answer 30

Midpiece with mitochondria

Question 31

Identify portion of sperm

Answer 31

Head

Question 32

Identify cap

Answer 32

Acrosome

Question 33

Identify arrows (in testes)

Answer 33

Seminiferous tubules

Question 34

Identify cells (in testes)

Answer 34

Interstitial (leydig) cells (Make testosterone)

Question 35

Identify (in testes)

Answer 35

Spermatocytes

Question 36

Identify cells attached to basement membrane

Answer 36

Spermatogonia

Question 37

Identify

Answer 37

Spermatids (elongated)

Question 38

Identify

Answer 38

Sertoli cells (Lie near basement membrane, lighter in color, triangular vs ovoid in shape)

Question 39

Identify two types of cells

Answer 39

Darker is spermatogonia Lighter is Sertoli cells

Question 40

Identify

Answer 40

Epididymis Site of sperm maturation and storage

Question 41

Type of cells (epididymis)

Answer 41

Pseirostratified epithilium

Question 42

Identify (epididymis)

Answer 42

Sperm cells in lumen

Question 43

Identify both (penis)

Answer 43

Urethra on top Corpus spongiosum on bottom

Question 44

Answer 44

Question 45

Answer 45

Question 46

Answer 46

Question 47

Answer 47

Question 48

Answer 48

Question 49

Answer 49

Question 50

Answer 50

Mucosal folds

Question 51

Answer 51

Question 52

Answer 52

Primary follicle

Question 53

Answer 53

Secondary follicle

Question 54

Answer 54

Graafian (mature) follicle

Question 55

Answer 55

Question 56

Answer 56

Secondary follicle

Question 57

Answer 57

Antral follicle

Question 58

Answer 58

Tertiary/Graafian follicle

Question 59

Corona radiata

Answer 59

Granulosa cells directly surrounding the oocyte. The cells are released with the oocyte at ovulation

Question 60

Cumulus oophorus

Answer 60

Cluster of cells that attaches the oocyte to the wall of the follicle

Question 61

Zona pellucida

Answer 61

Glycoprotein membrane surrounding the oocyte -contains sperm receptors and is digested by acrosome

Question 62

Answer 62

Question 63

Answer 63

Question 64

From zygote to fetus

Answer 64

Zygote, two blastomeres, 4 blastomeres, morula (16 cell stage), blastula, blastocyst (200-300 cells)

Question 65

Answer 65

Question 66

Answer 66

Question 67

What stage is this

Answer 67

Proliferative stage (Shrinkage of tissue creates false space)

Question 68

Identify stage

Answer 68

Secretory stage -lumen of gland with glycogen secretions -glands have a saw-tooth appearance

Question 69

Identify stage

Answer 69

Menstrual phase (Looks like hell, feels like hell)

Question 70

Identify stage

Answer 70

1st month -embryonic stage -brain/spinal cord neural tube) -heartbest begins 4th or 5th week -placenta

Question 71

Identify month

Answer 71

2nd month -heart is fully formed at 8 weeks -sex organs begin to develop Arm/leg buds are visible

Question 72

Identify month

Answer 72

3rd month -fetal state begins 11 weeks -period of fast growth -external features well formed

Question 73

Identify month

Answer 73

4th month -gender is identifiable -sucking reflex develops

Question 74

Identify month

Answer 74

5th month -nails and eyelashes appear -fetus begins active movements -lanugo begins to cover skin

Question 75

Identify month

Answer 75

7th month -internal organs mature -sufficient lung development (surfactant not produced yet) -fetus can survive birth

Question 76

Answer 76