chapter 48-50 biology slides
Chapter 48 Nervous System LE 48-2a Nerve net Hydra (cnidarian) Radial nerve Nerve ring Sea star (echinoderm) LE 48-2b Eyespot Brain Nerve cord Transverse nerve Planarian (flatworm) Brain Ventral nerve cord Segmental ganglion Leech (annelid) LE 48-2c Insect (arthropod) Chiton (mollusc) Brain Ventral nerve cord Segmental ganglia Anterior nerve ring Longitudinal nerve cords Ganglia LE 48-2d Brain Ganglia Squid (mollusc) Brain Salamander (chordate) Spinal cord (dorsal nerve cord) Sensory ganglion The Mammalian Brain Human LE 48-3 Sensor Sensory input Motor output Integration Effector Peripheral nervous system (PNS) Central nervous system (CNS) LE 48-4 Quadriceps muscle Cell body of sensory neuron in dorsal root ganglion Sensory neuron Spinal cord (cross section)