front 1 Central Nervous System | back 1 One of two major branches of the nervous system. Main organs: Brain and Spinal Cord |
front 2 Peripheral Nervous System | back 2 One of two major branches of the nervous system. Main organs: sensory receptors and ganglia |
front 3 Somatic Nervous System | back 3 Part of the peripheral nervous system. Things you consciously control |
front 4 Autonomic Nervous System | back 4 Part of the peripheral nervous system. Things that are involuntary |
front 5 Sympathetic nervous system | back 5 Part of the autonomic nervous system. Fight or flight mode. Uses adrenaline |
front 6 Parasympathetic nervous system | back 6 Part of the autonomic nervous system. Rest and digest |
front 7 Cerebrospinal Fluid | back 7 A layer of protection of the nervous system. Liquid that acts like a cushion. Made in the ventricles |
front 8 Meninges | back 8 A layer of protection of the nervous system. Membranes that cover the brain and spinal cord. Three types. |
front 9 Bone | back 9 A layer of protection of the nervous system. |
front 10 Dura Mater | back 10 The outermost meninge. Tough mother |
front 11 Arachnoid | back 11 The middle meninge. Looks like a spider web |
front 12 Pia mater | back 12 The innermost meninge. Delicate mother. The layer that is actually on the surface of the brain and spinal cord. |
front 13 Neuron | back 13 Nerve cell. |
front 14 Neuroglial cells | back 14 Support cells that make up 90% of the brain and spinal cord. |
front 15 Axon | back 15 The tail of a neuron. It carries an impulse away from the cell body. |
front 16 Dendrite | back 16 The parts of the neuron that brings information to the cell body. Neurons have multiple dendrites. |
front 17 Cell body | back 17 The major part of the neuron that does the processing. It can't divide. |
front 18 Schwann cells | back 18 Neuroglial cells that wrap around the axon. This allows for saltatory conduction |
front 19 Node of Ranvier | back 19 The gap between schwann cells on a myelinated neuron. |
front 20 Saltatory Conduction | back 20 The process where an impulse jumps from one node of ranvier to the other to send an impulse quickly |
front 21 Myelinated fibers | back 21 Neurons that have schwann cells. White matter of the brain |
front 22 Unmyelinated fibers | back 22 Neurons that lack schwann cells. Gray matter of the brain. |
front 23 The functions of the nervous system | back 23 Sensory, Integrative, and Motor |