Terms : Hide Images
| 9502071020 | Schuann cells | Cells that are tightly wound arounf the axon "insulation" | 0 | |
| 9502071021 | Myelin | Lipid protein that forms the myelin sheath on the outside of an axon. Speed signals through the nervous system. | 1 | |
| 9502071022 | neurilemmal sheath | surrounds the myelin sheath | 2 | |
| 9502071023 | Nodes of Ranvier | Gaps of exposed axon | 3 | |
| 9502071024 | neuroglial cells | Functions to fill space, support neurons, hold nerve tissue together, produce myelin and carry on phagocytosis | 4 | |
| 9502071025 | Astrocytes | Found between nerve tissue and blood vessels where they function in providing structural support and in removing cellular debris responsible for scar tissue following an injury. | 5 | |
| 9502071026 | Oligodendrocytes | Functions in the formation of melon sheaths in the brain and spinal cord. | 6 | |
| 9502071027 | Microglia | scattered throughout the CNS; supports neurons and phagocytize bacterial cells and cellular debris | 7 | |
| 9502071028 | Ependyma | Covers specialized brain parts and forms the linings that enclose spaces within the brain. | 8 | |
| 9502071029 | Nissil bodies | Location for ribosomes to attach for the synthesis of vital protein molecules. | 9 | |
| 9502071030 | Sensory, motor, integrative | Functions of nervous system | 10 | |
| 9502071031 | Sensory | Involves sensory receptors at the ends of peripheral nerves. Specialized to gather information by detecting changes that occur within and around the body. | 11 | |
| 9502071032 | Integrative | The info gathered over the peripheral nerves is taken to the CNS where the signals are integrated. They brought together, creating sensations, adding memory, or helping to produce thoughts. | 12 | |
| 9502071033 | Motor | Impulses travel from the CNS to responsive effectors. These effectors are outside the nervous system and include muscles, which may contract when stimulated by nerve impulses, and glands, which may produce secretions when stimulated. | 13 | |
| 9502071034 | motor functions | Conscious and subconscious events are controlled by: | 14 | |
| 9525921026 | gated ion channels | Neurons can transmit signals because Plasma membranes contain _________ which allow it to open and close | 15 | |
| 9525921027 | Sodium potassium | Some gated ion channels allow ___________ to pass through others allow ___________ to pass through. | 16 | |
| 9525921028 | sodium-potassium pump | Transport sodium ions out of cell and potassium ions into the cell. | 17 | |
| 9525921029 | resting potential | The starting point for the transmission of a nerve impulse. | 18 | |
| 9525921030 | nerve impulse | Disrupts the resting potential | 19 | |
| 9525921031 | action potential | sudden change in the electrical charge inside the axon | 20 | |
| 9525921032 | all or none response | a nerve or muscle fibre responds completly or not at all to a stimulus | 21 | |
| 9525921033 | myelin sheath | Speed signals through the nervous system. | 22 | |
| 9525921034 | multiple sclerosis | destruction of myelin sheath | 23 | |
| 9525921035 | The Synapse | The function of a neuron with another cell | 24 | |
| 9525921036 | presynaptic neuron | The neuron that carries the message to the synapse. | 25 | |
| 9525921037 | post synaptic neuron | neuron that transmits an impulse away from a synapse | 26 | |
| 9525921038 | Neurotransmitters | Chemical messenger that transfers nerve messages from one neuron to another. | 27 | |
| 9525921039 | synaptic knobs | secrete neurotransmitters | 28 | |
| 9525921040 | Excitory | Neurotransmitters that trigger nerve impulses | 29 | |
| 9525921041 | inhibitory | Neurotransmitters that inhibit Impulses | 30 |
