Chapter 24 Flashcards

1
Q

Seminal Vesicles secrete?*****

A

60% of seminal fluid.

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2
Q

What does seminal vesicles contain?*****

A

fructose that nourishes sperm

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3
Q

Prostate gland secretes?**

A

30% seminal fluid

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4
Q

What does the prostate gland contain?****

A

enzymes that activate the sperm

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5
Q

What does the bulbourethra gland secrete? *****

A

5% seminal fluid

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6
Q

What does the bulbourethra gland wash away?*****

A

residual urine in the urethra.

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7
Q

Seminal fluid + sperm =

A

semen

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8
Q

spermogensis is produced in the?

A

seminiferous tubules.

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9
Q

Where to sperm mature?

A

epididymis

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10
Q

What does the acrosome contain?

A

enzymes which enable sperm to penetrate egg.

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11
Q

The middle piece of a sperm has increased?

A

mitchondria

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12
Q

How many chromosomes must you have to be close normal?

A

46

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13
Q

Meiosis is?

A

nuclear division of gametes (sex cells)

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14
Q

46 is the

A

diploid number

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15
Q

23 is the

A

haploid number

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16
Q

the 23rd chromosome is the

A

sex chromosome

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17
Q

What is crossing over?

A

When an exchange of genetic material is done.

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18
Q

Surrounding the seminiferous tubules are?***

A

interstitial cells that produce testosterone.

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19
Q

Sustentacular cells >

A

nourish the sperm

20
Q

it takes 12 to 16 days for sperm to?

A

mature

21
Q

What propels sperm from the epididymis to the urethra?

A

Ductus deferens & ejaculatory duct

22
Q

LH and FSH are *****

A

sex hormones that comes from the anterior pituitary

23
Q

LH stimulates? ****

A

interstitial cells to produce testosterone

24
Q

FSH stimulates? ****

A

sperm cell formation

25
Q

1st follicle-
2nd follicle-
3rd follicle-

A

1st oocyte
2nd oocyte
releases 2nd oocyte (graafion follicle)

26
Q

What does the corpus luteum secrete?

A

progestrone

27
Q

What does progesterone do?

A

maintains endometrium

28
Q

Corpus albicans >

A

scar tissue

29
Q

Name the lining’s on the uterus

A

endometrium(inner)
myometrium (middle)-muscle
perimetrium (outer)

30
Q

**Fertilization is the joining of?

A

a sperm cell & a secondary oocyte to form a zygote

31
Q

*** A embryo is the developing human between the time of?

A

fertilization & 8 weeks

32
Q

A fetus is the development of a human between the time of? ***

A

8 weeks to birth

33
Q

What is the vagina lined with?

A

moist stratified squamous epithelium

34
Q

Breast’s >

A

produce milk
are exocrine glands
have ducts

35
Q

FSH & LH stimulate’s the ovaries to produce?

A

gamete

36
Q

Estrogen stimulates the?

A

uterine cycle

37
Q

Progesterone goes down with the?

A

shedding of the lining of the uterus.

38
Q

What are the menstrual cycle phases?

A

Menstrual phase- endometrium shedding 1-5 weeks
Proliferation phase- endometrium rebuilds 6-14 weeks
Secretory phase- endometrium prepares for embryo 14 to 28 weeks

39
Q

LH surge is responsible for?

A

stimulating ovulation

40
Q

Prolactin stimulates the production of?

A

milk

41
Q

Oxytocin is responsible for?

A

contraction and milk let down

42
Q

When a sperm penetrates an egg is completes?

A

mitosis II

43
Q

Where does fertilization take place?

A

the fallopian tube.

44
Q

Morula >

A

solid ball of cells 16-32 cells

45
Q

Blastocyte=

A

has cavity -enters uterine cavity

46
Q

The gastrula has 3 germ layers what are they?

A

ectoderm
endoderm
mesoderm