71210 Bioelectromagnetism - Exercises Autumn 2004

Synapses, Receptor Cells, and Brain

1. Sensory cells respond to stimuli by
   1. action pulses
   2. multiplying and amplifying stimuli
   3. determining the source of stimuli
2. Sensory receptors exist for sensing
   1. light
   2. temperature
   3. muscle tension
   4. partial oxygen pressure
   5. all of the above
3. Nerve impulses always travel in one direction
   1. True
   2. False
4. The primary function of neurotransmitters is to
   1. modify ion channel properties
   2. make one feel good
   3. affect the conduction along the axon
5. Number of neuronal connections in the brain is in the order of
   1. 10^7
   2. 10^9
   3. 10^11
   4. 10^15

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