hormone interactions Flashcards
What does the responsiveness of a target cell to a hormone depend on (3 things)?
- Hormones concentration in the blood
- the abundance of the target cells’ hormone receptors
- influences by other hormones
How does a target cell respond when the level of a hormone rises or has more receptors?
Vigorously (up-regulation)
When a hormone weakly stimulates with a target cell independently, but when small amounts of a second hormone are present it reacts more powerfully, what effect does this second hormone have?
permissive effect
When the effect of 2 hormones acting together is greater than the sum of their individual effects, the 2 hormones are said to have what kind of effect?
synergistic effect
When a hormone opposes the action of another hormone the 2 hormones have what kind of effects?
antagonistic effects