How do you pronounce Bainbridge?
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What is a Bainbridge?
Medical Definition of Bainbridge reflex
: a homeostatic reflex mechanism that causes acceleration of heartbeat following the stimulation of local muscle spindles when blood pressure in the venae cavae and right atrium is increased.
What does Bainbridge reflex do?
The Bainbridge reflex controls heart rate in response to blood volume. Blood volume can be influenced by multiple physiologic, idiopathic and pathologic changes.
What causes the Bainbridge reflex?
The Bainbridge reflex (aka, atrial reflex) occurs when the heart rate increases in response to a rise in atrial pressure. This is a compensatory mechanism since increased right atrial pressures frequently result from elevated left heart pressures from decreased cardiac output.
Where is the Bainbridge reflex detected?
venoatrial junctions
The Bainbridge reflex or Bainbridge effect, also called the atrial reflex, is an increase in heart rate due to an increase in central venous pressure. Increased blood volume is detected by stretch receptors (Cardiac Receptors) located in both sides of atria at the venoatrial junctions.
Does Bainbridge reflex increase blood pressure?
The Bainbridge reflex and the baroreceptor reflex act antagonistically to control heart rate. The baroreceptor reflex acts to decrease heart rate when blood pressure rises. When blood volume is increased, the Bainbridge reflex is dominant; when blood volume is decreased, the baroreceptor reflex is dominant.
What activates the Bainbridge reflex?
The Bainbridge reflex is elicited as a result of an increased volume of blood in the heart, which causes sympathetic nervous system stimulation. Stretch receptors are located in the right atrium, junction of the vena cava, and pulmonary veins.
Why is the Bainbridge reflex important?
Clinical Significance
The Bainbridge reflex controls heart rate in response to blood volume. Blood volume can be influenced by multiple physiologic, idiopathic and pathologic changes.
What happens in Bainbridge reflex?