Q. Reflex arc in the nervous system means
A) A functional unit consisting of a receptor neural pathway and an effector neuron
B) Peripheral nerves, spinal cords and brain
C) A homeostatic system of sensory nerves, synapses and motor nerves
D) An inherited behaviour pattern that functions through a certain neural pathway
Explanation
A functional unit consisting of a receptor neural pathway and effector neuron. Pneumotaxic centre is present in the pons varolli, which can moderate the functions of respiratory rhythm centre. Neural signals from this centre can reduce the duration of inspiration and thereby, after the respiratory rate
Reviewed by Dr. Abubacker
Physics Educator & NEET/JEE Specialist
Ph.D. in Physics with 19+ years of teaching experience.