Question Number 4289Question:
The neuron is the functional unit of the nervous system. Humans have about 100 billion neurons in their brain alone! Messages are transported along a neuron via an action potential. This is brought about by a) An opening of the sodium and potassium channels |
Medical MCQs (PLAB, MRCP, USMLE step 1,USMLE step 2 ,USMLE step 3 , FRCR, MRCS, GRE , all with answers )