Development of Primary and Secondary sexual characteristics Flashcards
1
Q
What is Primary Sexual Characteristics?
A
Characteristics that are present at birth and develop during puberty that affects sexual reproduction.
2
Q
What is Secondary Sexual Characteristics?
A
Characteristics that only develop during puberty that affect sexual reproduction.
3
Q
Primary Sexual Characteristics of females:
A
- Uterus enlarges and the vagina lengthens
- Ovaries begin to release eggs
- The menstrual cycle
4
Q
Primary Sexual Characteristics of males:
A
- Enlargement of penis and testes
- Spontaneous erections caused by blood flowing into chambers in the penis may happen
-Testicles begin to produce sperm, beginning of ejaculation.
5
Q
Secondary Sexual Characteristics of females:
A
- Breasts develop and the area around the nipple swells and darkens.
- Hair grows in armpits and pubic area.
- Redistribution of body fat causing hips to widen.
6
Q
Secondary Sexual Characteristics of males:
A
- Changes in the larynx (Adam’s apple) causing voice to deepen.
- Hair grows in armpits and pubic area, facial hair.
- Redistribution of muscle tissue and fat.
7
Q
Where does the sex hormones release from?
A
Pituitary Gland
8
Q
What are the main sex hormones for females?
A
- Oestrogen
- Progesterone
9
Q
What are the female sex hormones responsible for?
A
Ovulation and Menstruation
