m1_03Sample

m1_03Sample - Multiple choice: Consider a typical spiking...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Multiple choice: Consider a typical spiking neuron that is being grown in a culture dish. Unless otherwise noted, assume that the neuron is being bathed in a solution that is identical in composition from normal human extracellular fluid. A. Sodium B. Calcium C. Potassium D. Iodine E. Chloride 1. _________ Adding high concentrations of this ion to the extracellular fluid would strongly depolarize the neuron. 2. _________ Removing this from the extracellular fluid would make it impossible to generate an action potential 3. _________ If you depolarized the neuron with an electrode, this ion would flow out of the cell 4. _________ Removing this ion from the extracellular fluid would make it impossible for the neurotransmitter GABA to generate an IPSP. 5. _________ The absence of this ion from the extracellular fluid would not alter the normal electrical properties of the neuron. 6, _________ Removing this ion from the extracellular fluid would make it prevent the neurotransmitter ACh from efficiently generating an EPSP. 7. _________ Removing this ion from the extracellular fluid would not block action potentials but would block neurotransmitter release. 8. _________ Removing this ion from the extracellular fluid would make repolarization after an action potential much slower. Identify the region of the CNS involved in evoking each of the motor activities below. (If more than one area is involved, choose the area in which the motor command originates or whose role in that process is most specific). A. Spinal cord B. Primary motor cortex
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
C. Pons/medulla D. Hypothalamus E. Midbrain 9. _________ The doctor taps your knee, and you kick your foot forward 10. _________ You reach out and grab a pencil 11. _________ You nurse a baby, and your mammary duct muscles contract. 12.
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 6

m1_03Sample - Multiple choice: Consider a typical spiking...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online