fertilization puberty and menstruation pregnacy and human development Flashcards
What is a gamete?
Sex cell specialized for reproduction.
What is puberty?
Body reaches maturity
Emotional changes occur
From child to adult
They develop and become fertile
What does fertile mean?
Boys make sperm cells and girl start to make egg cells
What makes a baby?
A sperm and egg
How many sperm cells do men make approximately everyday?
200 000 - 400 00
Where is sperm made?
In testicles
When do ppl start puberty?
boys: 10-15
girls: 8-14
Name changes that happen to boys?
What makes puberty start?
The pituitary gland send a signal to the body to produce the hormone and start puberty
Do boys and girls produce the same hormones?
No, girls produce estrogen and boys produce testosterone
Name changes that happen to girls
What is ovulation?
The monthly release of an ovule in the fallopian tube
What is a period and how do they happen?
The ovum is an egg half formed that is released in the fallopian tube the towards the uterus once a month. If its fertilized with a sperm cell u get a baby if not it become a period and falls out of your vagina.
What is a reproductive system?
A specialized organ that allows reproduction
What is a zygote?
the genetic material of the egg and sperm combined to from a cell
What is implantation?
The attachment of the egg to the uterus
What is the endometrium?
The lining of the uterus
What is an embryo?
The term of developing pregnancy from fertilization to the end of week eight
What is a placenta?
An organ that develops in the uterus during pregnancy. It nourishes and gives oxygen to the growing baby and removes waste. Substances are passed from the mother to the baby through the placenta.
What is an amniotic fluid?
The fluid that surrounds the fetus in the womb, this fluid help cushion the baby from outside force.
What is a fetus?
A developing human from the start of the ninth week until delivery.
Explain labour.
Its a natural birth where the baby is delivered through the vagina
first stage: contraction
second stage: delivery
third stage: placenta
What is breech birth?
when the baby is in the wrong position
what are the three prior to birth developments of a baby?
Zygote
embryo
fetus
What are the three developments post birth?
Childhood
Adolescence
Adulthood
