Bilateral carotid artery occlusion (BCO) caused a reflex increase in mean arterial pressure and heart rate which were significantly attenuated by the extract injection.
Sometimes this condition is not apparent during waking hours, but reflux may occur during sleep, resulting in inhalation of a bit of regurgitated stomach contents or causing a reflex that constricts the airways, Dr. Edelman explained.
However, hydralazine causes a reflex increase in sympathetic tone and can worsen myocardial oxygen consumption, so should be used with caution in patients with known heart disease (e.g., heart failure, coronary artery disease, or valvular dysfunction).
Concomitant to nociception potentially explaining between sex differences in stretch tolerance is consideration for whether pain is causing a reflex response that impairs hamstring extensibility in men.
Meanwhile, motor neurons in related areas also fire spontaneously, and stimuli that would not normally cause withdrawal reflexes now cause a prolonged reflex response.
By stimulating the neurons with an electrode, he was able to map the entire neural circuit required to cause a common reflex.
Each animal was placed on a metal grid that was gently shaken to cause a grabbing reflex and slowly turned upside down.
But that such a complex mental activity as reading a comic story should cause a specific reflex contraction of the facial muscles is a phenomenon that has puzzled philosophers since Plato.
That's because pain messages that reach the spinal cord can cause an automatic reflex response, making muscles near the source of the pain contract to get away from the pain.
