Prenatal Development Flashcards
Female Reproductive System (7)
Uterus
Ovary
Vagina
Cervix
Fallopian Tube
Endometrium
Myometrium
What is the function of the Uterus?
Uterus is where a fertilized egg will implant itself and grow from embryo to fetus
What is the function of the Ovaries
Ovaries produce eggs for fertilization and they make the hormones estrogen and progesterone (pro-pregnancy)
What is Endometrium?
layer of tissue that lines the uterus
what does Progesterone do?
prepares the endometrium for pregnacy after ovulation
When do eggs begin to develop?
At the start of menstration
What is ovulation?
The release of the egg from the ovaries
Corpus Luteum function?
to make the uterus a healthy place for a fetus to grow
What does Corpus Luteum produce?
hormone called Progesterone that prepares your uterus for pregnacy
Fertilization or Oogenesis is egg_______.
activation
Rapid, Multiple rounds of cell division is called
Cleavage
The typical _____ is a ball of cells
blastula
The cells in the _____ rearrange themselves to form three layers of cell
blastula
Name the three formations of germ layers
- Endoderm
- Mesoderm
- Ectoderm
Endoderm layer is the ____ layer
Internal (lining of internal organs)
Mesoderm layer is the ______ layer
middle (bones, muscles)
Ectoderm layer is the ______ layer
external (nervous system and skin)
Neurulation is the process in which the _______ bends up and later fuses to form a hollow tube that will eventually be the ______ and ________
neural plate
brain and spinal cord
What is a Blastula?
fertilized mass of cells that will eventually become an embryo (day 5 of fertilization)
______ formation of tissue that will become the gut
Gastula
How long is pregnacy?
40 weeks
Embryonic period is the first _____ weeks
first 8 weeks
Fetal period is from _____ weeks until ______.
from 9 weeks to birth
