Science 7 - Systems Flashcards
Positive Feedback
Results get the system further away from normal
Birth
Positive Feedback system
Banana
positive feedback
Negative feedback
the effect brings the system back to normal
Breathing
negative feedback
Sweating
negative feedback
Blood glucose (blood sugar)
negative feedback
Homeostasis
Our body (cells, tissues, organs) work together to give us energy that helps us maintain a steady state
Excretory System
How the body regulates water and salt in the body (pee)
Digestive System
Breaks down food and makes energy
- liver
- esophagus, mouth
- large intestine
- small intestine
- stomach
- gallbladder
Female reproductive
uterus, ovaries
Cardiovascular system
circulating blood and oxygen around your body
- lungs
- heart
- veins, arteries
Immune system
fights off pathogens
Pathogen
Anything that doesn’t belong in your body
Muskuloskeletal
supports the body, protects organs, allows you to move
- muscles
- bones
