Chapter 13-13.6

Question 0

Describe the different sex chromosomes in males and females

Answer 0

Males- one sex chromosome is an X, and the other is a Y chromosome

Females- two large sex chromosomes, X chromosomes

Question 1

What are gonads?

Answer 1

The male testes and female ovaries

Question 2

___________ are hormones that are synthesized from cholesterol and influence sexual development. They have multiple effects on cells because they ____________

Answer 2

Steroid hormones, are small, fat soluble, and can readily penetrate cell membranes.

Question 3

___________ is the most common androgen

Answer 3

Testosterone

Question 4

______________ is the most common estrogen

Answer 4

Estradiol

Question 5

What are androgens and estrogens?

Answer 5

The two main classes of gonadal hormones

Question 6

What does the adrenal cortex release?

Answer 6

Small amounts of all the sex steroids released by gonads

Question 7

Hormones in the hypothalamus that stimulate the release of anterior hypothalamus hormones are called?

Answer 7

Releasing hormones

Question 8

Have the brains of men and women been found to differ? If so, in what ways?

Answer 8

Yes

• the brains of men tend to be about 15% larger that those of women
• sex differences
• behavior differences

Question 9

The nucleus in the medial periodic area of rat hypothalamus that is larger in males compared with females is called the?

Answer 9

Sexually dimorphic nucleus