During childbirth, oxytocin increases uterine contractions, which stimulate further oxytocin release.
Before eating, the body produces insulin in anticipation of an increase in blood glucose.
Negative feedback slows a process; positive feedback amplifies it.
1. What is the nephron's primary role in the kidney?
2. An enzyme's final product slows the enzyme's activity, reducing further production of that product. What type of feedback is occurring?
3. Which sequence best describes the processes involved in urine formation?
What does negative feedback do to the enzyme that started a reaction?
The final product slows or stops its activity.
What happens to a process under positive feedback?
Its final product further increases the same process.
Which substances’ blood concentrations do the kidneys regulate?
Sodium, phosphorus, carbon, and calcium.
Which hormone do the kidneys secrete to stimulate red blood cell production?
Erythropoietin.
What balance does water-sodium homeostasis maintain in the body?
The balance between water and sodium.
How does ADH change kidney water reabsorption and urinary water loss?
It increases water reabsorption and reduces water loss in urine.
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