A diabetic patient felt dizzy after moving suddenly from lying down in bed. His blood pressure decreased markedly followed by fainting. Then he regained his consciousness after cor... A diabetic patient felt dizzy after moving suddenly from lying down in bed. His blood pressure decreased markedly followed by fainting. Then he regained his consciousness after correcting his blood pressure by raising his legs up. This patients' condition is an example of which of the following feedback systems? a) Baroreceptor stimulation via positive feedback b) Neural control via negative feedback c) Feedforward control system d) Hormonal and chemical control mechanisms
Understand the Problem
The question is asking to identify the type of feedback system that explains the patient's dizziness and fainting episode related to blood pressure changes. This involves understanding physiological concepts related to feedback mechanisms in the human body.
Answer
Neural control via negative feedback
This patient's condition is an example of neural control via negative feedback.
Answer for screen readers
This patient's condition is an example of neural control via negative feedback.
More Information
When the patient stands up, the decrease in blood pressure triggers a neural control response. The autonomic nervous system, specifically the baroreceptor reflex, detects the low blood pressure and initiates actions to restore it, which is a negative feedback mechanism.
Tips
A common mistake is to confuse negative feedback with positive feedback. Remember that negative feedback works to counteract changes, maintaining stability, while positive feedback amplifies them.
Sources
- Diabetics and Increased Risk of Dizziness - Verywell Health - verywellhealth.com
- Orthostatic hypotension (postural hypotension) - Symptoms & causes - mayoclinic.org
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