Sexual Behavior Flashcards

1
Q

Sexual determination happens in?

A

Utero

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2
Q

The process during development through which an individual becomes either male or female.

A

Sexual determination

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3
Q

determines gonadal sex, which in turn, results in secretion of specific hormones that determine phenotypic sex.

A

genotypic sex

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4
Q

the genetic information contained in the DNA, which is fixed at fertilization and remains constant throughout life.

A

genotype

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5
Q

How many pairs of chromosomes at fertilization?

A

23 pairs

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6
Q

__ pairs determine physical development

A

22

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7
Q

___ pair(s) determine the sex

A

1

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8
Q

_____ determines sex of the offspring

A

Males

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9
Q

the physical characteristics males or females possess, which can change over time (what we show to the world).

A

Phenotype

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10
Q

________ ____ determines gonadal sex. Then gonadal hormone secretions determine phenotypic sex!

A

Genotypic sex

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11
Q

If Sry gene present, what happens?

A

Testes form

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12
Q

If Sry gene absent?

A

Ovaries develop

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13
Q

The Y gene is what?

A

The sex determining gene

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14
Q

Describe Masculine development?

A

Release ANTI mullerian hormone, regress mullerian ducts, promotes wolfian ducts

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15
Q

Describe feminine development?

A

ABSENCE of testes, means absence of anti-mullerian ducts and mullerian ducts develop. Absence of testosterone = wolfian ducts regress.

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16
Q

Genotypic sex determines:

A

Gonadal sex

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17
Q

Wolffian duct:

A

Masculine

18
Q

Mullerian ducts:

A

Feminine

19
Q

Sry gene only in:

A

Masculine development

20
Q

Gonadal secretions determine:

A

Phenotypic sex

21
Q

Secondary sex characteristics in female:

A

Enlarged breasts and widened hips

22
Q

Secondary sex characteristics in male:

A

beard, deep voice

23
Q

Birth to sexual maturity is when what happens?

A

Organizational hormone effects

24
Q

Sexual maturity, sexual behavior, and parental behavior is when what happens?

A

Activational hormone effects

25
Q

PERMANENT effects of hormone exposure that occur EARLY in development

A

organizational hormone effects

26
Q

presence of masculine brain and behavior

A

Masculinization

27
Q

presence of feminine brain and behavior

A

feminization

28
Q

T is converted to estrogen by armatase and does what to the brain?

A

Masculinizes it

29
Q

What protein binds to estrogen in women to not allow it across the BBB?

A

alpha fetaprotein

30
Q

Testes release what?

A

Testosterone

31
Q

Ovaries release what?

A

Estrogen

32
Q

Have male genotypes, but absence of T and AHM making no male genitals makes the person have female genotype is known as:

A

Androgen Insensitivity syndrome

33
Q

Male genotype, don’t produce AMH, but T exposure creates male genitals and they have a uterus that never regresses is known as:

A

Persistent mullerian duct syndrom

34
Q

Only have a 1 X chromosome, no Y, and no second x chromosome & no genitals develop… is what abnormality?

A

Turners syndrome

35
Q

In turners syndrome the individual has what type of phenotype?

A

Female

36
Q

When the adrenals secrete abnormally high levels of androgens?

A

Congenital adrenal hyperplasia

37
Q

Organizational effects are?

A

permanent and early in life

38
Q

XY genotype is normal; XX genotype, too much androgens, ambiguous genitalia

A

Congenital adrenal hyperplasia

39
Q

Neural control of hormones:

A

Hypothalamus and pituitary

40
Q

Hypothalamuus releases ________ –> stimulates _______ to release ________ (E & T) –> stimulates _________

A

GnRH, gonadotropins, gonads

41
Q

_______ effects of hormone exposure that occur LATER in development.

A

transient

42
Q

Difference between organizational and activational hormone effects?

A

Organizational: permanent, early
Activational: transiet, later