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)
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)
Need Help?
We hope your visit has been a productive one. If you're having any problems, or would like to give some feedback, we'd love to hear from you.
For general help, questions, and suggestions, try our dedicated support forums.
If you need to contact the Course-Notes.Org web experience team, please use our contact form.
Need Notes?
While we strive to provide the most comprehensive notes for as many high school textbooks as possible, there are certainly going to be some that we miss. Drop us a note and let us know which textbooks you need. Be sure to include which edition of the textbook you are using! If we see enough demand, we'll do whatever we can to get those notes up on the site for you!