Key: Total Magnification: 40X V = Vein CC = Cerebral Cortex L1 = Layer 1 of Cerebral Cortex: Plexiform Layer L2 = Layer 2 of Cerebral Cortex: Small Pyramidal cell Layer L3 = Layer 3 of Cerebral Cortex: Granular Layer BV = Blood Vessel PM = Pia Mater Lab: Lab 4 Muscle and nervous tissue