Question

3. Now you will design a pressure receptor. First, draw a circle on a piece of paper and then draw two or three lines from the center to beyond the perimeter of the circle. Imagine that the circle represents a balloon and the lines are threads, which are attached to the surface of the balloon. How would blowing into the balloon, to increase the pressure of the air inside, affect: a. The size of the balloon? b. The threads attached to the surface of the balloon? c. Imagine that the threads are the terminals and axons of sensory neurons. If the terminals are sensitive to stretch, what will happen to the frequency of the action potentials in the axons as the pressure inside the balloon is changed?

Answer 1

Answer :)

In the given diagram, the lines are threads and the circle is the balloon. Threads have a limited elasticity while balloon has more of it. As the balloon is filled with air and tries to move up, the threads will be tighter. The same things would happen with the baroreceptors, as the vessels start to fill with more blood, the baroreceptors becomes tighter. This would cause the receptors to send the signals to the brain, and the response will initiate.

As the pressure increase, the action potential inside the vessels would also increase because to reduce the pressure by vasodilation.