Питання 40 з 50 · Тема: Blood, cardiovascular system · Physiology

What regulatory mechanisms cause an increase in the heart rate, when the body's position changes from horizontal to vertical?

1. A Sympathetic reflexes and catecholamines
2. B Unconditioned sympathetic reflexes
3. C Conditioned and unconditioned sympathetic reflexes
4. D Catecholamines
5. E Conditioned sympathetic reflexes

Правильна відповідь: B. Unconditioned sympathetic reflexes