These structures are part of a reflex arc:
A. 4, 3, 2, 1, 5
B. 4, 1, 3, 2, 5
C.1, 4, 3, 5, 2
D. 1, 4, 2, 5, 3
Which set of numbers is the proper sequence of the pathway of impulses?
A)4,3,2,1,5
B)4,1,3,2,5
C)1,4,3,5,2
D)1,4,2,5,3

Question

Quizplus · Accepted Answer

The proper sequence of the pathway of impulses in a reflex arc is 1) sensory receptor (4), 2) sensory neuron (1), 3) integration center (3), 4) motor neuron (2), and 5) effector (5). Option B is the only set of numbers that follows this sequence.

These Structures Are Part of a Reflex Arc