Extra R.S. Info

Question 1

How many chromosomes are in each cell of the embryo?

Answer 1

-46
-Each sperm and egg have 23 chromosomes

Question 2

What hormone is characteristic of males, and which females?

Answer 2

-Male-Testosterone
-Female-Estrogen and progesterone

Question 3

Ovulation

Answer 3

-When the body releases an egg once a month
-If sperm meets the egg, pregnancy occurs
-If not, egg is removed during period

Question 4

Process of sperm production

Answer 4

-Happens in testes
-Special cells divide in cell division and change into sperm
-They grow tails to swim
-Stored in epididymis
-Takes approx. 64 days and happens all the time after puberty

Question 5

Menstrual cycle (28 days)

Answer 5

-Day 1-5: Period (shedding of uterus lining if no fertilization)
-Day 5-14: FSH helps egg mature in ovaries
-Day 14: LH triggers egg release (ovulation)
-Day 14-28: Progesterone keeps uterus lining ready for pregnancy
-Repeat

Question 6

Male and female hormones

Answer 6

Female:
-Progesterone - maintains uterus lining for pregnancy
-Estrogen - helps develop female traits and regulate menstrual cycle
-LH - Triggers ovulation (egg release)
-FSH - Helps egg mature in ovaries
Male:
-LH - Triggers testes to produce testosterone
-FSH - Helps in sperm production

Question 7

What hormones do both males and females have?

Answer 7

-Testosterone
-Estrogen
-LH
-FSH
-Progesterone (but a lot higher in females)

Question 8

LH

Answer 8

-Luteinizing Hormone
-Triggers testes to produce testosterone

Question 9

FSH

Answer 9

-Follicle Stimulating Hormone
-Combines with testosterone to stimulate the production of sperm

Question 10

What does testosterone do? Where is it made?

Answer 10

-Helps in sperm production
-Responsible for male characteristics
-Responsible for sexual organ’s growth and development
-Created in testes