VAN 221: Veterinary Splanchnology and Applied Anatomy (1+1)

BRAIN AND SPINAL CORD

Cerebrum (View image)

• It shows peripheral cortex (grey matter) and central medulla (white matter). The cortex shows 6 layers i.e.,
  • Outer molecular layer
  • Outer granular
  • Outer pyramidal
  • Inner granular
  • Inner pyramidal cell layers and
  • Layer of polymorphous cells
• The medulla is made up of nerve fibres

Cerebellum (View image)

• It shows peripheral cortex (grey matter) and central medulla (white matter). The cortex shows,
  • Outer molecular layer
  • Intermediate Purkinje cell layer and
  • Inner granular or nuclear layer of small neurons

Spinal cord (View image)

• It shows H-shaped grey matter surrounded by white matter
• The large multipolar motor neurons are located in large ventral horn
• The dorsal horn is narrow and small multipolar sensory neurons are observed in dorsal horn
• White matter is composed of medullated and non medullated nerve fibers