Reproductive Sytem Flashcards
What’s spermatogenesis?
Process of making sperm cells in males in seminiferous tubules
What are sperm cells like?
Newly made four haploid sperm cells are all same. They have head with genetic information, limited cytoplasm and a flagellum
What’s oogenesis?
Process of making cells in females
What happens during different weeks of reproduction of baby?
Week
7: head develops
11: genitals develop
16: eyes develop
18: being able hear
26: lungs develop
32: starts to practice breathing
40: time for birth
What’s female reproductive system like?
It has both internal (vagina, uterus, fallopian tubes, and ovaries) and external parts (labia majora, labia minora, bartholin’s glands and clitoris)
What are the internal parts designed for?
Designed to transport the egg, prepare body for pregnancy, support a developing fetus, and produce hormones that regulate the system and help pregnancy
What are the external parts responsible for?
They allow the sperm to enter the system while protecting internal organs from infectious agents
How’s the reproductive system in male?
It’s mostly external outside abdominal cavity which includes penis, scrotum, testicles, and epididymus. The internal organs are vas deferens, urethra, seminal vesicle, ejaculatory duct, prostate gland, and bulbourethral gland.
What’s the main hormone that controls development in male after puberty?
Testosterone - causes penis or erectile tissue to lengthen, muscle mass increases, pubic hair, underarm hair and facial hair grows, voice deepens, larynx get bigger, height increases, shoulders broaden, and skin produces more oil and sweat
What hormone leads to development in female?
Estrogen (in puberty) - causes tissues in upper body to develop, hips widen, body stores more fat around pelvis and thighs, pubic and underarm hair develops, and outer reproductive structures may enlarge or become more prominent
What’s the menstrual cycle like?
First phase is called follicular phase (where follicles i.e. immature egg), luteal phase (where egg is released for ovulation)
*follicle that releases egg closes and becomes a structure called corpus leteum (produces hormone progesterone which helps maintain the thickened lining of uterus)
If fertilized egg doesn’t implant the corpus luteum it will begin to disintegrate around day 22 of cycle. This causes estrogen and progesterone to decrease and endometrium lining gets disrupted and hence menstruation takes place.
What’s follicle?
Immature egg surrounded by a cyst
