What are the primary sex organs? | The primary sex organs are the Testes and Ovaries |
What are the accessory sex organs? | the accessory sex organs are the glands and the external genitalia |
Define Spermatogenesis | begin with one spermatogonia and through the process of meiosis the end result is 4 sperm cells. |
Define Oogenesis | Oogenesis forms 4 gametes but they regress |
What requires more energy, spermatogenesis or Oogenesis? | The amount of energy it takes to create an ovum is much greater than what it takes to create a sperm
oogenesis > spermatogenesis |
Why does Oogenesis require more energy? | During the process of embryogenesis (first few weeks) the fetus relies on the energy stored within the ovum |
What do we begin with and end with during the process of Spermatogenesis? | We begin with a Spermatogonium and end with 4 mature sperm cells |
Explain what occurs here | In the process of Oogenesis, the oogonium splits into 4 cells but there is regression so the final product is one cell |
Up to which week is the embryo undifferentiated (doesn't have a gender) | up to week 5 |
What is the puberty period? | around the ages of 10-15 |
What occurs during puberty? | The reproductive organs grow to their adult size |
Describe puberty in males | - the scrotum and testes enlarge
- appearance of pubic, axillary, and facial hair
- lengthening of vocal folds (voice deepens)
- Musculoskeletal system increases in mass
- sexual maturation (mature sperm cells) |
Describe puberty in females | - budding breasts
- menarche (first mensuration)
- increase in subcutaneous fat
- widening and lengthening of the pelvic girdle
- appearance of axillary and pubic hair
- estrogen induced growth spurt |
What age is a women at her reproductive peak? | late 20's |
What is Menopause? | menstrual cycle ceases or stops (occurs in women around 40-60)
ovaries stop secreting estrogen
reproductive organs and breasts begin to atrophy |
What occurs in women around the age of 35 | the rate of follicle degeneration increases |