Science Flashcards
What do cells do?
Cells work together to form systems of tissues and organs
What is a tissue?
Groups of cells that work together for specific functions.
What is a organ?
Tissues are grouped together in the body to form organs which include brain, heart, lungs, kidney, liver and more
What is an organ system?
Different organs that working together to perform a common function.
What do the stomach, gallbladder, and pancreas do?
They break down the foods we eat.
Muscular-
Skeletal
Nervous-
Respitory
Digestive
Circulatory
Immune
Excretory
Endocrine
Reproductive
What is the order of levels of organization.
Cells
Tissues
Organ
Organ system
Organism
What are the skeletal system functions
Site for muscle attachment for movement
Support for tissue
Stores minerals such as calcium
Protects organs
Blood cell production
How many bone are in an adult human
206
Over how many bones are in hands and feet
100
A babys bone has how many bones at birth
About 300