1 / 13

TEST Prep

TEST Prep. Chapter 11 – Nervous System histology and overview. Part of the neuron that conducts impulses away from the cell body…. Schwann cell Axon Dendrite neurolemma. An impulse from one nerve cell is communicated to another nerve cell via…. Cell body Effector Synapse Receptor.

fairly
Download Presentation

TEST Prep

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. TEST Prep Chapter 11 – Nervous System histology and overview

  2. Part of the neuron that conducts impulses away from the cell body… • Schwann cell • Axon • Dendrite • neurolemma

  3. An impulse from one nerve cell is communicated to another nerve cell via… • Cell body • Effector • Synapse • Receptor

  4. The term Central Nervous System refers to ….. • Autonomic nervous system • Spinal cord and spinal nerves • Brain, spinal cord and peripheral nerves • Brain and spinal cord

  5. The interior surface of a resting neuron cell membrane…… • Negatively charged with less sodium • Positively charged with less sodium • Negatively charged with more sodium • Positively charged with more sodium

  6. A second nerve impulse cannot be generated until…. • All sodium gates are closed • The membrane potential has been reestablished • Proteins have been resynthesized • The Na ions have been pumped back into the cell

  7. The substance released at axon terminals to propagate a nerve impulse is called…. • Ion • Cholinesterase • Neurotransmitter • Biogenic amine

  8. Which of the following is not a function of the autonomic nervous system? • Innervation of skeletal muscle • Innervation of glands • Innervation of cardiac muscle • Innervation of smooth muscle of the digestive tract

  9. Which is not a special characteristic of neurons? • Exceptionally high metabolic rate • Are mitotic • Have extreme longevity • Conduct impulses

  10. What part of the autonomic nervous system is considered the “resting and digesting” division? • Peripheral nervous system • Sympathetic division • Somatic division • Parasympathetic division

  11. The patellar “knee jerk” reflex is an example of a….. • Crossed-extensor reflex • Extensor thrust reflex • Stress reflex • Stretch reflex

  12. Match the following: • Absolute refractory period • Depolarization • Action potential • Repolarization • Relative refractory period • neuron cannot respond to stimuli no matter how strong. • Also called a nerve impulse transmitted by axons • Interior of the cell becomes less negative due to influx of sodium ions. • Exceptionally strong stimuli can trigger a response • Specific period during which potassium ions diffuse out of the neuron due to a change in membrane permeability.

  13. Identify Structures • Ion channel • Calcium ions • Post-synaptic membrane • Synaptic cleft • Synaptic vesicles

More Related