EVERYDAY SCIENCE

SCIENCE

NERVOUS SYSTEM

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
The nerve cells can be stimulated by.
A
Mechanical stimuli
B
Chemical stimuli
C
Electrical stimuli
D
All of the above
Explanation: 

Detailed explanation-1: -Neurons are able to respond to stimuli (such as touch, sound, light, and so on), conduct impulses, and communicate with each other (and with other types of cells like muscle cells).

Detailed explanation-2: -Stimulation of the presynaptic neuron to produce an action potential causes the release of neurotransmitters into the synaptic cleft. Most of the released neurotransmitters bind with molecules at special sites, receptors, on the dendrites of the postsynaptic neuron.

Detailed explanation-3: -Summary. A nerve impulse begins when a neuron receives a chemical stimulus. The nerve impulse travels down the axon membrane as an electrical action potential to the axon terminal. The axon terminal releases neurotransmitters that ca rry the nerve impulse to the next cell.

Detailed explanation-4: -The stimulus is modified, or transduced, into an electrical impulse in the receptor neuron. This incoming excitation, or afferent impulse, then passes along an extension, or axon, of the receptor to an adjustor, called an interneuron.

There is 1 question to complete.