Human Reproduction Flashcards
Cell Division and growth
The fertilised egg divides and grows into an embryo
What is the period from conception to birth
Gestation Period
What is puberty
The stage in the human life cycle when sexual organs mature
Copulation
This occurs when a man and a woman have intercourse and sperm are released
Ejaculation
This occurs when the erect penis relases sperm
Ovulation
This occurs when an ovum is released from an ovary every 28 days
Mensuration
The endometrium of the uterus breaks down and passes through the vagina. (Flow of blood)
Fertilisation
The process when the sperm fuses with the egg
Implantation
The fertilised egg divides into many ball of cells and embeds itself into the endometrium
What hormone do males produce
Testosterone
What hormone do females produce
Oestrogen
Name 3 Physical changes in males during puberty
Skin becomes oily
Voice Changes
Hair Grows
Pubic hair grows
Name 3 physical changes in females during puberty
Skin becomes oily Breasts grow Hair grows under the arms Sweating Hips may widen Pubic hair grows
Name the 2 main male organs
Penis
Testes
Why does the testes hang outside the body
Because it helps to keep the testes at a constant temperature
Semen is a mixture of what an what
seminal fluid and sperm
Name the main organs in the female body
2 Fallopian Tubes
2 Ovaries
Uterus
Vagina
One ovum is released from an ovary every ?..
28 Days
The ovum lives for about how many days until it is fetilised
3-5 days
What happens during the 1-5 day of the menstrual cycle
Begins on the first day of bleeding.
Endometrium breaks and passes through the vagina
Ovum starts to mature in one of the ovaries
What happens during the 6-14 day of the menstrual cycle
Ovum continues to mature
New layer starts to form on endometrium
Fertilised egg woll attach itself to the layer
What happens on day 14 of the mensuration cycle
The mature ovum is released from the ovary and into the fallopian tube.
OVULATION
What happens during the 15-28 day of the menstrual cycle
Endometrium continues to get thicker
Ovum travels down the fallopian tube to the uterus
