Most neurons have a. one axon hillock (initial segment). b. multiple axon hillocks (initial segments). c. one dendrite. d. one axon hillock (initial segment) and one dendrite. e. multiple axon...

This is a Neuroscience EXAM.One attempt.3.5 Hours durationMultiple-choice, short answer and long answer questions and calculations



Most neurons have a. one axon hillock (initial segment).  b. multiple axon hillocks (initial segments).  c. one dendrite.  d. one axon hillock (initial segment) and one dendrite.  e. multiple axon hillocks (initial segments) and one dendrite.  2. Which statement best describes most neurons?  a. They receive information via axons.  b. They transmit information to other cells via dendrites.  c. They are polarized.  d. They conduct signals bidirectionally.  e. They transmit electrical signals via cytoplasmic continuity   Using the ion concentrations below, what would be the membrane potential of an artificial membrane kept at physiological temperature if PK = 1, PNa = 10, and PCl = 0.04? Ion [inside] mM [outside] mM K+ 375 15 Na+ 35 350 Cl- 37 400  a. + 41.6 mV  b. - 41.6 mV  c. + 39.3 mV  d. – 39.3 mV  e. The membrane potential is not listed here    Explain the difference between action potentials and synaptic potentials. Please restrict your answer to a maximum of 4-5 sentences