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Last Lecture Exam!!!! > Ch 26 > Flashcards

Ch 26 Flashcards

1
Q

The phase during which an individual transitions from non-reproductive to reproductive is called

A

Puberty

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1
Q

The phase during which an individual transitions from non-reproductive to reproductive is called

A

Puberty

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2
Q

An organ that produces sex cells is called

A

Gonad

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3
Q

A sex cell is called

A

Gamete

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4
Q

A fertilized egg is called

A

Zygote

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5
Q

The term used to refer to the growing organism from fertilization through the first 8 weeks in a human development

A

Embryo

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6
Q

From the 8th week of development to birth the growing organism is called

A

Fetus

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7
Q

This organ produces sperm

A

Testis

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8
Q

This organ produces eggs (ova)

A

Ovary

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9
Q

The penis clitoris scrotum and labia are referred to as _____ genitalia

A

External genitalia

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10
Q

The uterus Fallopian tubes vas deferens and epididymis are referred to as _____ genitalia

A

Internal genitalia

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11
Q

Normally the cell’s nucleus has _____ pairs of chromosomes

A

23

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12
Q

The chromosomes that code for the body’s characteristics other than sex cells are called

A

Autosomes

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13
Q

Sex cells only have half the number of chromosomes so that The offspring will gain half from the egg and half from the sperm. Cells that have only one set of chromosomes not pairs are called

A

Haploid

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14
Q

During fertilization a complete set of chromosomes is formed ( half or one set from the sperm, the other set from the egg) cells that contain the complete number of chromosomes (46) are called

A

Diploid

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15
Q

The x and y chromosomes are referred to as the _____ chromosomes

A

Sex

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16
Q

Offspring that only have x chromosomes will develop into this sex

A

Female

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17
Q

Offspring that have the combination of x and y chromosomes will develop into this sex

A

Male

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18
Q

If The offspring inherit two x chromosomes one will become inactive and be called

A

Barr body

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19
Q

This sex chromosome contains essential genes for survival if The offspring does not have at least one of these sex chromosomes it will die

A

X

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20
Q

If an offspring inherits three sex chromosomes and the combination is x x y The offspring will be considered this sex genetically

A

Male

21
Q

All embryos have reproductive structures that could become either sex which ones develop depend on which signal molecules are present these tissues that could become either male or female structures are called

A

Bipotential

22
Q

This part of the embryonic gonadal structure can develop into ovaries

A

Cortex

23
Q

If this Gene is present and expressed The offspring will develop testes

A

Sex determining region of Y

Sry

24
Q

This signal molecule which is produced and secreted by the sertoli cell of the testes will cause the malarian duct to degenerate

A

Anti-malarian hormone

25
Q

This signal molecule which is produced and secreted by laidig cells of the testes will stimulate the development of the wolfian duct

A

Testosterone

26
Q

This duct will develop into the fallopian tube uterus and upper part of the vagina

A

Mullerian

27
Q

This duct will develop into the seminal vesicle vas deferens and epididymis

A

Wolffian

28
Q

The genital tubercle will develop into the glands penis in males or will develop into the ____ in females

A

Clitoris

29
Q

This signal molecule and its receptor are required for the male external genitalia to develop

A

Dihydrotestosterone.

30
Q

This enzyme catalyzes the conversion of testosterone into the most common form of estrogen, estradiol

A

Aromatase

31
Q

This enzyme catalyzes the conversion of testosterone into dihydrotestosterone

A

5 alpha reductase

32
Q

The making of sex cells is called

A

Gomatogenesis.

33
Q

The type of cell division involved in the formation of sex cells is called

A

Meiosis

34
Q

During spermatogenesis one primary spermocyte will lead to the development of ___ sperm

A

4

35
Q

During oogenesis one primary oocyte will lead to the development of ____ eggs

A

1

36
Q

Before the development of gametes duplicate copies of each chromosome must take place. The process is called DNA replication and the two copies are called

A

Sister chromatids

37
Q

Primary oocytes are developed in a female during this stage of development

A

Embryo

38
Q

Primary spermicides are developed in male during this stage of development

A

Reproductive adult

39
Q

In the signaling pathway of the reproductive system this signal molecule is produced and secreted from the hypothalamus

A

Gonadotropin releasing hormone

40
Q

Follicle stimulating hormone and luteinizing hormone are collectively called the

A

Gonadotropin

41
Q

In males this hormone will stimulate the laydigg cells to produce testosterone

A

Luteinizing hormone

42
Q

In males this gonadotropin will target cells of the sertoli cells and stimulate sperm production

A

Follicle stimulating hormone

43
Q

This structure houses the egg and grows during the ovarian cycle

A

Follicle

44
Q

In females this gonadotropin will Target the granulosis cells of the follicles inside the ovary which increases estrogen release

A

Follicle stimulating hormone

45
Q

In females a spike in this gonadotropin stimulates the release of the egg from the ovary

A

Luteinizing hormone

46
Q

The process of releasing the egg from the ovary is called

A

Ovulation

47
Q

The follicle that is Left behind in the ovary after the egg is released becomes the

A

Corpus luteum

48
Q

The phase of the ovarian cycle during which the follicle grows is logically called the ______ phase

A

Follicular

49
Q

The phase of the ovarian cycle during which the corpus luteum is formed is called the _____ phase

A

Luteal phase

50
Q

This steroid hormone only increases significantly during the luteal phase of the ovarian cycle

A

Progesterone

Last Lecture Exam!!!! (3 decks)

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