Question

1/30 - homeostasis feedback (dg)
determine whether the following example is positive (+) or negative feedback (-) and name the body system(s) that are involved.
an example of a feedback mechanism in humans would be the increase in heart rate and respiratory rate which occurs in response to increased exercise or other increased muscle cell activity. to counteract the increase in heart and respiratory rate, an individual would need to stop exercising to lower their set heart rate back to normal again.
which type of feedback does this loop show?
which body systems are involved?

Explanation:

1. Negative feedback mechanisms counteract deviations from a normal set point to restore homeostasis. In this case, stopping exercise reverses the increased heart/respiratory rate, returning values to normal, which fits negative feedback.
2. The cardiovascular system regulates heart rate, the respiratory system regulates respiratory rate, and the nervous system (specifically the autonomic nervous system) controls the adjustment of both rates during and after exercise.

Answer:

1. Which type of feedback does this loop show? Negative feedback (-)
2. Which body systems are involved?

• Cardiovascular system
• Respiratory system
• Nervous system