Human Body Systems: Part 2 Flashcards
What is the hormone that causes the development of facial hair and a deep voice?
Testosterone
What is a hormone that causes the development of the female reproductive system?
Estrogen
What is the monthly discharge of blood and tissue from the uterus?
Menstruation
What is the cell created after the cell division of the zygote?
Embryo
What is the organ where the human embryo grows?
Uterus
What provides the embryo with oxygen and nutrients, and carries away wastes through the umbilical cord?
Placenta
What is the developmental stage between age 2 and puberty?
Childhood
What is the development stage from puberty to adulthood?
Adolescence
What is the fertilized combination of an egg cell with a sperm cell?
Zygote
What are the three 3-month periods that divide the nine months of pregnancy?
Trimesters
What does STI stand for?
Sexually Transmitted Infections
What body system is a part of the external defense of the Immune System?
Integumentary System
What are foreign materials that can trigger and activate an immune response in your body?
Antigen(s)
What are white blood cells that coordinate the immune response and attack infected body cells?
T Cells
What is a substance prepared from killed or weakened pathogens?
Vaccine