5 Written Questions
5 Matching Questions
- An action potential begins and travels due to the movement of what ions?
- What are the four types of ion channels?
- Give some examples of neuropeptides
- The small molecule neurotransmitters include?
- Most neurons in the brain and spinal cord are of what type?
- a acetylcholine, amino acids, biogenic amines, ATP and other purines, and nitric oxide
- b enkephalins, endorphins and dynorphins, substance P
- c leakage, ligand-gated, mechanically-gated, and voltage-gated
- d multipolar neurons
- e Na+(sodium) and K+(potassium)
5 Multiple Choice Questions
- processes sensory input by integrating and using perception
- schwann cells in PNS
oligodendrocytes in CNS
- "brain of the gut"
- somatic nervous system(SNS)
autonomic nervous system(ANS)
enteric nervous system(ENS)
- refractory period
5 True/False Questions
Causes relaxation of smooth muscle → vasodilation
Propagates nerve impulses toward another neuron, muscle or gland → axon
Opens and closes in response to a specific chemical stimulus → ligand-gated channels
During this phase the negative membrane potential becomes less negative → depolarization
The production of graded potentials and action potentials depend on what two basic features? → Na+ gates close
K+ flows out of the cell