Lab 3 Exam Flashcards

(76 cards)

1
Q

Conception

A

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

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2
Q

Cleavage

A

zygote begins to divide

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3
Q

Blastomere

A

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

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4
Q

Morula

A

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

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5
Q

Blastula

A

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

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6
Q

Trophoblast

A

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

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7
Q

Blastocyst

A

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

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8
Q

Stages of uterine cycle

A

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)

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9
Q

1st month

A

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

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10
Q

2nd month

A

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

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11
Q

3rd month

A

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

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12
Q

4th month

A

-gender is identifiable
-develops reflex for sucking

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13
Q

5th month

A

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

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14
Q

7th month

A

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

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15
Q

Epididymis

A

site of sperm maturation and storage

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16
Q

Corona radiata

A

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

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17
Q

cumulus oophorus

A

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

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18
Q

zona pellucida

A

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

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19
Q

Identify blurred out red

A

Vas deferens

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20
Q

Identify yellow arrow

A

Ejaculatory duct

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21
Q

Identify

A

Urinary bladder

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22
Q

Identify circled area

A

Prostate gland

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23
Q

Identify gland

A

Seminal gland

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24
Q

Identify circle

A

Bulbourethral gland

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25
Identify red line
Urethra
26
Identify top arrow
Epididymis
27
Identify bottom arrow
Testes
28
Identify whole thing
Scrotum
29
Identify tail
Flagellum
30
Identify portion of sperm
Midpiece with mitochondria
31
Identify portion of sperm
Head
32
Identify cap
Acrosome
33
Identify arrows (in testes)
Seminiferous tubules
34
Identify cells (in testes)
Interstitial (leydig) cells (Make testosterone)
35
Identify (in testes)
Spermatocytes
36
Identify cells attached to basement membrane
Spermatogonia
37
Identify
Spermatids (elongated)
38
Identify
Sertoli cells (Lie near basement membrane, lighter in color, triangular vs ovoid in shape)
39
Identify two types of cells
Darker is spermatogonia Lighter is Sertoli cells
40
Identify
Epididymis Site of sperm maturation and storage
41
Type of cells (epididymis)
Pseirostratified epithilium
42
Identify (epididymis)
Sperm cells in lumen
43
Identify both (penis)
Urethra on top Corpus spongiosum on bottom
44
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49
50
Mucosal folds
51
52
Primary follicle
53
Secondary follicle
54
Graafian (mature) follicle
55
56
Secondary follicle
57
Antral follicle
58
Tertiary/Graafian follicle
59
Corona radiata
Granulosa cells directly surrounding the oocyte. The cells are released with the oocyte at ovulation
60
Cumulus oophorus
Cluster of cells that attaches the oocyte to the wall of the follicle
61
Zona pellucida
Glycoprotein membrane surrounding the oocyte -contains sperm receptors and is digested by acrosome
62
63
64
From zygote to fetus
Zygote, two blastomeres, 4 blastomeres, morula (16 cell stage), blastula, blastocyst (200-300 cells)
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67
What stage is this
Proliferative stage (Shrinkage of tissue creates false space)
68
Identify stage
Secretory stage -lumen of gland with glycogen secretions -glands have a saw-tooth appearance
69
Identify stage
Menstrual phase (Looks like hell, feels like hell)
70
Identify stage
1st month -embryonic stage -brain/spinal cord neural tube) -heartbest begins 4th or 5th week -placenta
71
Identify month
2nd month -heart is fully formed at 8 weeks -sex organs begin to develop Arm/leg buds are visible
72
Identify month
3rd month -fetal state begins 11 weeks -period of fast growth -external features well formed
73
Identify month
4th month -gender is identifiable -sucking reflex develops
74
Identify month
5th month -nails and eyelashes appear -fetus begins active movements -lanugo begins to cover skin
75
Identify month
7th month -internal organs mature -sufficient lung development (surfactant not produced yet) -fetus can survive birth
76