psycholgy

Topics: Nervous system, Neuron, Axon Pages: 6 (1482 words) Published: October 15, 2014
1.What is a neuron?
oThe individual nerve cell, comprised of the axon, dendrites, and cell body. 2.How many neurons in the nervous system?
o86 billion
3.Function of cell body, dendrites, and axons.
oCell body: Contains the nucleus and other major components. oDendrites: Branch out from the cell body and receive messages from other neurons. oAxons: Carries messages away from the cell body to the dendrites. 4.Define polarization/depolarization.

oPolarization: Resting state of neuron, semipermeable.
oDepolarization: Stimulated state, neuron is no longer mostly negative on the inside. 5.How do neurons fire?
oSodium ions pump in, depolarizing the axon, before the polarization returns. 1.What is a neuron?
oThe individual nerve cell, comprised of the axon, dendrites, and cell body. 2.How many neurons in the nervous system?
o86 billion
3.Function of cell body, dendrites, and axons.
oCell body: Contains the nucleus and other major components. oDendrites: Branch out from the cell body and receive messages from other neurons. oAxons: Carries messages away from the cell body to the dendrites. 4.Define polarization/depolarization.

oPolarization: Resting state of neuron, semipermeable.
oDepolarization: Stimulated state, neuron is no longer mostly negative on the inside. 5.How do neurons fire?
oSodium ions pump in, depolarizing the axon, before the polarization returns. 1.What is a neuron?
oThe individual nerve cell, comprised of the axon, dendrites, and cell body. 2.How many neurons in the nervous system?
o86 billion
3.Function of cell body, dendrites, and axons.
oCell body: Contains the nucleus and other major components. oDendrites: Branch out from the cell body and receive messages from other neurons. oAxons: Carries messages away from the cell body to the dendrites. 4.Define polarization/depolarization.

oPolarization: Resting state of neuron, semipermeable.
oDepolarization: Stimulated state, neuron is no longer mostly negative on the inside. 5.How do neurons fire?
oSodium ions pump in, depolarizing the axon, before the polarization returns. 1.What is a neuron?
oThe individual nerve cell, comprised of the axon, dendrites, and cell body. 2.How many neurons in the nervous system?
o86 billion
3.Function of cell body, dendrites, and axons.
oCell body: Contains the nucleus and other major components. oDendrites: Branch out from the cell body and receive messages from other neurons. oAxons: Carries messages away from the cell body to the dendrites. 4.Define polarization/depolarization.

oPolarization: Resting state of neuron, semipermeable.
oDepolarization: Stimulated state, neuron is no longer mostly negative on the inside. 5.How do neurons fire?
oSodium ions pump in, depolarizing the axon, before the polarization returns. 1.What is a neuron?
oThe individual nerve cell, comprised of the axon, dendrites, and cell body. 2.How many neurons in the nervous system?
o86 billion
3.Function of cell body, dendrites, and axons.
oCell body: Contains the nucleus and other major components. oDendrites: Branch out from the cell body and receive messages from other neurons. oAxons: Carries messages away from the cell body to the dendrites. 4.Define polarization/depolarization.

oPolarization: Resting state of neuron, semipermeable.
oDepolarization: Stimulated state, neuron is no longer mostly negative on the inside. 5.How do neurons fire?
oSodium ions pump in, depolarizing the axon, before the polarization returns. 1.What is a neuron?
oThe individual nerve cell, comprised of the axon, dendrites, and cell body. 2.How many neurons in the nervous system?
o86 billion
3.Function of cell body, dendrites, and axons.
oCell body: Contains the nucleus and other major components. oDendrites: Branch out from the cell body and receive messages from other neurons. oAxons: Carries messages away from the cell body to the dendrites. 4.Define...
Continue Reading

Please join StudyMode to read the full document

You May Also Find These Documents Helpful

  • Psycholgy Essay
  • investigation a cultural group in psycholgy Research Paper
  • Psychology paper depicting the psycholgy exhibited in the film John Q
  • personality traits vs emotional recognition Essay
  • math in future Essay
  • Essay on Suicide Prevention: How to Help a Friend or Someone Who is Suicidal
  • cognition Essay
  • Essay about Outline and evaulate privation

Become a StudyMode Member

Sign Up - It's Free