Exercise 16 TABLE Schwann cells PNS Fig. Oligodendrocyte – 16.1 Ependymal cells CNS 16.1 Microglial – Microglia CNS Astrocytes – Astrocytes CNS Ependymal cell – Satellite cells PNS Satellite cell – Oligodendrocytes CNS Schwann cell – Fig. 16.2 Processes Fig. Axon terminals Cell body 16.3 Schwann cell Dendrite Node of Ranvier Axon Axon collateral Axon hillock Axon or soma Cell body Dendrites Nucleus Cell body Axon hillock Trigger zone (initial segment) Myelin sheath Fig. 16.4 Process Fig. Unipolar Satellite cells 16.5 Multipolar Nucleus Bipolar Neuron cell body Sensory neuron Axon Interneuron Dendrites Motor neuron Neuron cell body Fig. 16.6 Myelinated Fig. Neurolemma Axon 16.7 Myelin sheath Myelin sheath Node of Ranvier Schwann cell cytoplasm Axon Node of Ranvier Unmyelinated Axons Schwann cell cytoplasm Fig. 16.8 White matter in brain and spinal cord Gray matter in brain and spinal cord BEFORE Axoaxonic GOING Axodendritic TO LAB Axosomatic Dendrites on postsynaptic neurons receive neurotransmitters at synapse Graded potential sent toward trigger zone Action potential started on postsynaptic neuron Action potential travels down axon Action potential reaches axon terminal
Exercise 16 TABLE 16.1 Schwann cells – PNS Ependymal cells – CNS Microglia – CNS Astrocytes – CNS Satellite cells – PNS Oligodendrocytes – CNS Fig. 16.1 Oligodendrocyte Microglial Astrocytes Ependymal cell Satellite cell Schwann cell Fig. 16.2 Processes Cell body Dendrite Axon Axon hillock Cell body Nucleus Fig. 16.3 Axon terminals Schwann cell Node of Ranvier Axon collateral Axon or soma Dendrites Cell body Axon hillock Trigger zone (initial segment) Myelin sheath Fig. 16.4 Process Satellite cells Nucleus Neuron cell body Axon Dendrites Neuron cell body Fig. 16.5 Unipolar Multipolar Bipolar Sensory neuron Interneuron Motor neuron Fig. 16.6 Myelinated Axon Myelin sheath Schwann cell cytoplasm Node of Ranvier Unmyelinated Axons Schwann cell cytoplasm Fig. 16.7 Neurolemma Myelin sheath Node of Ranvier Axon Fig. 16.8 White matter in brain and spinal cord Gray matter in brain and spinal cord BEFORE GOING TO LAB Axoaxonic Axodendritic Axosomatic Dendrites on postsynaptic neurons receive neurotransmitters at synapse Graded potential sent toward trigger zone Action potential started on postsynaptic neuron Action potential travels down axon Action potential reaches axon terminal
nervous_tissue_lab_exercise_16_answers.docx