Reproductive System

Puberty (prep for reproduction)

Hormone regulation in men

Hormone regulation in women

What physical changes occur at puberty in males?

What physical changes occur at puberty in males? Genital organs mature Underarm, facial, pubic and body hair Voice deepens Muscles grow Bone density increases

What physical changes occur at puberty in females?

What physical changes occur at puberty in females?

Menstrual cycle begins Genital organs mature Underarm and pubic hair Breasts develop Pelvis widens Fat tissue on hips and breasts

Hormone Regulation

Hormone: a chemical in the blood that brings a message to 1 or more organs

Spermatogenesis Oogenesis

Description

Hormones

Formation of spermatozoa

Maturation of ovarian follicle

(what surrounds ovum in ovary)

Follicle Stimulating

Hormone (FSH)X X

Luteinizing Hormone (LH)

X X

Testosterone x

Estrogen X

Progesterone X

Erection

Due to sexual arousal, cavities in the penis fill with blood

This increases its volume and hardness

Ejaculation

Expulsion of semen by the penis into the vagina

Spermatozoa make their way through the uterus into the fallopian tube in order for just 1 to fertilize the ovum

Female Cycles

28 days Ovarian – in the ovaries Menstrual – uterine endometrium (wall of

uterus)

Time (days)

Stage Description Hormones involved

1 - 5 Menstruation Endometrium expelled (bleeding)

FSH

↓Progesterone

6 - 14 Proliferation Endometrium thickens

Estrogen

FSH and LH

14 Ovulation Ovum from ovary to fallopian tube

FSH and LH

continued

15 - 28 Secretory Edometrium thickens

Progesterone

POSTER

Reproduce the top and bottom parts of Figure 5.32 on p. 148 of your textbook

Make sure to include a Title Identification of the 2 axis Identification of the 4 female cycle stages Color