| A | B |
|---|
| Regulation | controland cooradinationof all life activites |
| Receptors | structures that are sensitive to changes in the external and internal envieonment |
| Effectors | museles in which neurons are attached to |
| neurons | nerve cells |
| impulse | electronical message |
| Stimulus | a cahnge in internal and external envionment |
| Receptors | structures that are specialized to detect stimuli |
| Dendrites | l Fibers that detect stimuli and generate an impulse toward the cyton |
| Terminal Branches | l The ends of axons that secrete neurotransmitters |
| Neurotransmitters | l Chemicals secreted by the terminal branches that aid in the transmission of an impulse across the synapse |
| Synapse | l The gap between the terminal branches of 1 neuron and the dendrites of another neuron. |
| Motor neuron | carry impulses from brain and spinal cord toward the effectors |
| Sensory neuron | carry impulses from the receptors toward the spinal cord and brain |
| reflex arc | sends messages |
| interneruuron | impusis from one neuron to another. |
