Even though mr. t's baroreceptor reflex responded to his decreased blood pressure, it did not succeed in raising his blood pressure high enough to prevent him from passing out. why not? (hint: remember, this client has a spinal injury that has blocked communication between the brain and the lower half of his body.)

Question

Biology

Kristina Berger

30 March, 17:29

Even though mr. t's baroreceptor reflex responded to his decreased blood pressure, it did not succeed in raising his blood pressure high enough to prevent him from passing out. why not? (hint: remember, this client has a spinal injury that has blocked communication between the brain and the lower half of his body.)

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Mathias Davila · Answer 1

Reduce blood pressure will induce the brain to send a signal that constricts the blood vessels.

Baroreceptor will catch the impulse that saying there is decreased blood pressure and send it into the neuron that will end up in the spine. It is located in the upper body so the signal should reach the brain.

The brain will send a signal to constrict the blood vessel of the body, but the signal couldn't pass the lower body. This will cause the lower body failed to receive the signal, thus not constrict the vessel. Therefore, the blood will be pooled in the lower body and the blood pressure keep decreases