Positive Feedback Mechanism
Positive feedback mechanisms typically control ________ events that do not require continuous adjustments.
infrequent
Enhancement of labor contractions during child birth and blood clotting are both examples of what?
positive feedback mechanism
Break or tear in occurs in a blood vessel wall
What is 1?
Platelets adhere to site and release chemicals
What is 2?
Released chemicals attract more platelets
What is 3?
Platelet plug forms
What is 4?
Feedback cycles ends when plug is formed
What is 5?
positive feedback cycle is initiated
What is 6?
Cascades ________ the original stimulus.
amplify
Once initiated, the results of a positive feedback mechanism reaction feed into the next like a series of waterfalls on a river. Which causes them to be referred to as _________
cascades
In a positive feedback mechanism, the initial response ______ the original stimulus so that further responses are even ______.
enhances, greater
_______ a hypothalamic hormone, intensifies labor contractions causing them to be both more frequent and more powerful.
oxytocin