Lecture 2 - Nervous Tissue pt 1

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Last updated 2:47 PM on 10/9/26
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6 Terms

1
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nervous tissue

initiates and transmits nerve impulses to coordinate physiological function

this is not just neurone, but also includes different cells coinciding with one another


2
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afferent vs efferent division

afferent:

  • signals coming into the CNS

  • caused by sensory and visceral stimuli

efferent:

  • signals coming out of the CNA

  • 3 branches: somatic, autonomic, enteric


3
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3 branches of the efferent division

  • somatic. - consists of motor neurone associated with the skeletal system

  • autonomic - regulates w/ homeostasis

  • enteric - modulates the digestive system


4
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PNS vs CNS

CNA - brain & spinal chord

PNS - nerve fibres carry info b/n CNS and body

5
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central nervous system - brain & spinal chord

brain:

  • cerebrum - cortex + subcortical structures

  • cerebellum

  • brainstem - thalamus, midbrain, pons, medulla oblongata

spinal chord:

  • cervical (8 nerve pairs)

  • thoracic (12 nerve pairs)

  • lumbar (5 nerve pairs)

  • sacrum (5 nerve pairs)

  • coccygeal (1 nerve pair)



6
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brief anatomy of the brain

  • brain is comprise