ESSENTIAL ANATOMY – THE NERVOUS SYSTEM This handout contains structures from all 4 nervous system chapters (12-15). Coloring/shading the structures is highly recommended. These are the figures to be used on test and exams. The names of the required structures appear in the right hand text box. ANATOMY OF THE BRAIN (sagittal) frontal lobe parietal lobe temporal lobe occipital lobe cerebellum midbrain pons medulla oblongata thalamus hypothalamus pituitary gland corpus callosum cerebral cortex arbor vitae ANATOMY OF A NEURON soma dendrites axon nucleus axon hillock nodes of ranvier axon bulb myelin sheath ANATOMY OF A SYNAPSE axon terminal synaptic vesicle (fusing w/ CM) synaptic cleft neurotransmitter receptor (on the target structure) ANATOMY OF THE SPINAL CORD (C.S.) anterior median fissure posterior median sulcus lateral horn dorsal horn ventral horn ventral root of a spinal nerve spinal nerve dorsal root ganglion central canal ANATOMY OF THE SPINAL CORD dura mater arachnoid mater pia mater dorsal root ganglion spinal nerve subarachnoid space ventral root spinal nerve dorsal root ganglion dorsal root ANATOMY OF A NERVE endoneurium epineurium perineurium nerve fascicle nerve nerve fibers THE MENINGES OF THE BRAIN epidural space scalp dura mater pia mater cranial bone gray matter of the brain white matter of the brain THE VENTRICLES OF THE BRAIN 1ST ventricle 2nd ventricle 3rd ventricle 4th ventricle NERVE PLEXUS AND SPINAL NERVES THAT INNERVATE THE ARM AND LEG\ cervical plexus brachial plexus lumbar plexus sacral plexus phrenic nerve axial nerve median nerve radial nerve ulnar nerve femoral nerve obturator nerve common fibular nerve tibial nerve sciatic nerve SUMMARY SHEETS Fill in the tables with the most important information. Fill free to expand the tables as needed Ch 12- Nervous Tissue Structures in … Central nervous system Peripheral nervous system Somatic sensory division Visceral sensory division Autonomic nervous system Functions of … Sympathetic division Parasympathetic division Types of Neurons Neuron Unipolar Drawing Location Function Bipolar Multipolar Anaxonic Interneuron Sensory (Afferent) Neuron Moto (efferent) Neuron First Order Second Order Third Order Glial Cells Cell Astrocytes Drawing Function Microglia Schwann cells Oligodendrocytes Ependymal cells Satellite cells Electrophysiology of Neurons Resting Membrane Potential Depolarization Ions responsible for the membrane potential Repolarization Action Potential Saltatory conduction Role of myelin Role of Nodes of Ranvier Parts of the Action Potential Events at the Synapse Ion that causes vesicles to fuse with the cell membrane Role of the effector cell receptor Role of the neurotransmitter Classes of Neurotransmitter Neurotransmitter Class Monoamine Amino acid derived Neuropeptides Description Example Function
