Human Body System Flashcards
What is a negative feedback loop?
Reverses changes back towards a normal, stable condition
What is positive feedback loop?
The uncommon feedback loop that is also involved in normal function. They are to “stimulate” the change until it stops. Such as contractions during labor and in blood clotting.
What is the purpose of positive feedback loops?
To amplify the starting signal
Examples of negative feedback
Body temperature, blood pressure, glucose regulation
Examples of positive feedback
enhancement of labor contractions by oxytocin, platelet plug formation and blood clotting
What are the organ systems of the body?
Integumentary, nervous, cardiovascular, respiratory, digestive, & excretory
What is the main function of the nervous system?
Monitor, integrate, and respond
What is the main function of the cardiovascular system?
circulate blood
What is the main function of the respiratory system?
supply the body with oxygen and dispose of carbon dioxide
What is the main function of the digestive system?
To breakdown food to be used as fuel for energy by the body
What is the main function of the excretory system?
to collect and remove wastes from the body
What are the levels of organization of living things from simple to most complex?
Atom, macromolecule, organelles, cell, tissue, organ, organ system, organism
How do the Integumentary and Excretory systems work together?
Pores on the skin open up and allow water, salts, and minerals to seep out of the body.
How do the Integumentary and Respiratory systems work together?
Both of these systems work together to get rid of carbon dioxide in the body
How do the integumentary and digestive system work together?
The integumentary system works with the digestive to encourage the uptake of calcium for your diet