Chapter 17 Flashcards
Stages of birth
Stage 1, muscles squeeze , contractions, stage 2, cervix continues to dialate, contractions become strong, stage 3, the baby comes out, keep contracting, placenta comes out
Building blocks of life
Cell, tissue, organs, body systems
Fertilization
Joining together of sperm and egg
Egg cell
The reproductive cell from female that joins with sperm
Sperm
The male cell that joins with the egg
Uterus
Pear shaped organ in female body where embryo is kept
Embryo
Developing organism that’s about 8 weeks old
Fetus
Developing embryo at end of eight weeks
Placenta
Nourishes the fetus with tissue on inside of uterus
Umbilical cord
Tube that connects the placenta to the fetus
Cervix
Entry to uterus
Heredity,
Passing of traits from parent to child
Chromosomes
are threadlike structures found within the nuclear of a cell to carry codes
Genes
Basic unit of heredity
Genetic disorder
Partly or completely caused by defect in genes