Biology : Concepts and Investigations (Loose)
3rd Edition
ISBN: 9780077681005
Author: Hoefnagels
Publisher: MCG
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Question
Chapter 26.2, Problem 3MC
Summary Introduction
To determine:
In what direction does a message move in the neuron.
Concept introduction:
A neuron is a basic and fundamental unit of the brain. It produces nerve impulse for movement of muscles in response to external stimuli. It transmits information in the form of chemical and electrical signals.
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Chapter 26 Solutions
Biology : Concepts and Investigations (Loose)
Ch. 26.1 - Prob. 1MCCh. 26.1 - Prob. 2MCCh. 26.1 - Prob. 3MCCh. 26.2 - Prob. 1MCCh. 26.2 - Where is the myelin sheath located?Ch. 26.2 - Prob. 3MCCh. 26.2 - What are the functions of each of the three...Ch. 26.3 - Describe the forces that maintain the distribution...Ch. 26.3 - Prob. 2MCCh. 26.3 - Prob. 3MC
Ch. 26.3 - Prob. 4MCCh. 26.3 - What prevents action potentials from spreading in...Ch. 26.3 - Prob. 6MCCh. 26.3 - How do myelin and the nodes of Ranvier speed...Ch. 26.4 - Describe the structure of a synapse.Ch. 26.4 - Prob. 2MCCh. 26.4 - Prob. 3MCCh. 26.4 - Prob. 4MCCh. 26.5 - Prob. 1MCCh. 26.5 - Prob. 2MCCh. 26.5 - Prob. 3MCCh. 26.5 - Prob. 4MCCh. 26.6 - Prob. 1MCCh. 26.6 - Prob. 2MCCh. 26.6 - Prob. 3MCCh. 26.6 - Prob. 4MCCh. 26.6 - Prob. 5MCCh. 26.6 - Prob. 6MCCh. 26.6 - List some structures that protect the central...Ch. 26.6 - Prob. 8MCCh. 26.6 - Prob. 9MCCh. 26.7 - 1. Use figure 26.22 to explain how saxitoxin...Ch. 26.7 - Prob. 2MCCh. 26 - Some cells of the central nervous system are...Ch. 26 - Prob. 2MCQCh. 26 - What event triggers an action potential? a....Ch. 26 - Prob. 4MCQCh. 26 - Prob. 5MCQCh. 26 - Damage to the surface tissue of the spinal cord...Ch. 26 - Prob. 7MCQCh. 26 - Describe some invertebrate nervous systems. Why do...Ch. 26 - Prob. 2WIOCh. 26 - Prob. 3WIOCh. 26 - Prob. 4WIOCh. 26 - Write a nonbiological analogy for resting...Ch. 26 - Prob. 6WIOCh. 26 - Prob. 7WIOCh. 26 - Sketch a synapse: label the axon and synaptic...Ch. 26 - Prob. 9WIOCh. 26 - Prob. 10WIOCh. 26 - Prob. 11WIOCh. 26 - Prob. 12WIOCh. 26 - Prob. 13WIOCh. 26 - Cerebral palsy is a nervous system disorder that...Ch. 26 - Traumatic brain injury can occur when a person...Ch. 26 - Prob. 16WIOCh. 26 - Prob. 17WIOCh. 26 - Prob. 18WIOCh. 26 - Prob. 19WIOCh. 26 - Prob. 1PITCh. 26 - Prob. 2PITCh. 26 - Prob. 3PITCh. 26 - PULL IT TOGETHER 4. Acid the somatic, autonomic,...
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- Name the major parts of an axon.arrow_forwardDraw an arrow showing the direction that an impulse travels along a neuronarrow_forwardHow do proteins and other chemicals synthesized in the soma get to the axon terminals? By what process can a virus that invades a peripheral nerve fiber get to the soma of that neuron?arrow_forward
- Axons have diameters of _________ and do not _______. 0.4µm to 1mm, contain microtubules 100-100 µm, contain sodium channels 100-100 µm, contain calcium channels 0.4µm to 1mm, taperarrow_forwardWhy are impulses transmitted more quickly down a myelinated axon than down an unmyelinated axon?arrow_forwardWhich is not true about axons? They arise from the cell body they send information to other cells they contain dendritic spines they recive information from other cellsarrow_forward
- An action potential is generated at the... trigger zone of the axon postsynaptic membrane cell body axon terminalarrow_forwardAreas of myelinated axons create the appearance of _______ matter, while neuron cell bodies and unmyelinated axons create the appearance of ______ matter.arrow_forwardWhy do we call the nervous system a "signal system?" Can you compare it to anything else?arrow_forward
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