Central Nervous System

Brain

p361 and Embryology

Fundamentals:

Anatomy:

Divisions:

• 1)Forebrain/Proscencephalon
  • Cerebrum/Telencephalon
  • Thalmus & Hypothalmus&Pituitary Gland/Diencephalon
• Brain Stem
• 2)Midbrain/Mesencephalon
  • Superior Colliculi
  • Inferior Colliculi
  • Cerebral Pendules
• 3)Hindbrain/Rhombencephalon
  • Pons&Cerebellum/Metencephalon
  • Medula Oblongata/Myelencephalon

Organ Tissues:

• 1)White matter
  • Association Fibers
  • Commissural Fibers
  • Projection Fibers
• 2)Gray matter
  • Basal nuclei
    • Corpus Striatum
    • Caudate Nucleus
    • Lentiform Nucleus
      • Putamen
      • Globus Pallidus
    • Claustrum

Terminology:

• Association Fibers: located only on that hemisphere and conducts impulses between neurons and set hemisphere
• Commissural Fibers: connect the neurons and gyri of one hemisphere to other
• Projection Fibers: ascending and descending tracts that transmit impulses from cerebrum to other parts of the brain and spinal cord to other parts of the brain and cerebrum
• Basal Nuclei: specialized paired masses of gray matter located deep within the white matter
• Gray matter - Central Nervous System
• White matter - Central Nervous System
• Brain Stem

Concepts:

• Embryology - Notocord & etc

Application:

• Caffeine - stimulant that increases the rate of transmission across the synapse.