Same Precursors

Question 1

Male and Female External Genitalia Develop from

Answer 1

the Same Precursors

Question 2

when does

Most prenatal sex development occur

Answer 2

during weeks 8–24 of gestation, when testosterone levels are high in male fetuses.

Question 3

when do females release estrogens?

Answer 3

Females do not release estrogens until puberty.

Question 4

When does External Genital Structures differentiations begin and end ?

Answer 4

Differentiation begins around 8 weeks and ends around 24 weeks

Question 5

Descent of the testicles . When does it happen?

Answer 5

Develop inside the abdomen, descend a few weeks before birth. If not at birth, most drop within the first year or require surgery.

Question 6

What causes differences in brain structure, function and chemistry between two sexes?

Answer 6

These differences are brought about by higher levels of androgens in males than in females during development.

Question 7

typical female

Answer 7

46,XX

Question 8

typical male

Answer 8

46,XY

Question 9

what affects growth and fertility ?

Answer 9

Chromosomal abnormalities

Question 10

Androgen Insensitivity Syndrome (AIS) XY Chromosomes

Answer 10

Androgen receptor is absent, does not develop male or female reproductive tract. Look like women, just does not have a uterus, ovaries.

Question 11

Congenital adrenal hyperplasia (CAH) XX Chromosomes

Answer 11

Adrenal gland emits a large amount of testosterone during development that can cause an enlarged clitoris and even fused labia.
Partial masculinization of genitalia in a girl with congenital adrenal hyperplasia

Question 12

Hypospadia

Answer 12

Urethra on the underside of the penis 
Incidence Rate : 1 in 300 births Most common male birth defect
Requires surgery – So places there is no access

Question 13

what is gender

Answer 13

Gender is the collection of psychological traits that differ between males and females.
Gender identity a person’s subjective sense of female or maleness.