Reproduction in Humans Flashcards
Testis
Where sperm is made
Sperm duct
Carries sperm testis->urethra
Urethra
carries sperm through penis during ejaculation
Prostate Glands
produces liquid that is added to sperm -> semen
Scrotum
Contains testis, hang outside body to keep them cooler that body temp.
What are Male Secondary characteristics caused by
Testosterone
What are female Secondary characteristics caused by
Estrogen
Male Secondary Sexual Characteristics
Voice deepens
Pubic hair - facial and body
Muscle development
Female Secondary Sexual characteristics
Breasts develop
Hips widen
Pubic hair
Ovary
Contains egss (ova)
Oviduct
Where fertilisation occurs
carries egg-> uterus
Uterus
Where embryo/fetus develops
Vagina
Where sperm are deposited
Cervix
Neck of uterus
What is the role of the placenta?
To transport nutrients e.g. glucose water oxygen from mother to fetus
Adaptations of Placenta
Villi = large S.A
Thin Wall
DIFFUSION
What is aminiotic fluid for?
Protects fetus from knocks + bumps
Menstrual cycle Stage 1
Uterus lining breaks down
Day 1-4
Menstrual cycle stage 2
Uterus lining develops
Day 4 - 14
Menstrual cycle stage 3
Ovulation = egg released from ovary
Day 14
Menstrual cycle stage 4
Uterus lining is maintained
Day 14 -28
How long does the menstrual cycle last?
28 Days
Where is FSH produced
Pituitary Gland
What does FSH do
Causes egg to mature
Stimulates estrogen production