front 1 What is the central nervous system composed of? | back 1 Brain and Spinal Cord |
front 2 Electrical impulses are transmitted between components of the central nervous system via? | back 2 interneurons |
front 3 Axons branch into axon terminals, which have _______ located at the terminal ends. | back 3 Bulbs |
front 4 Oligodendrocytes are similar to Schwann cells in that they are a? | back 4 are a type of neuroglial cell. |
front 5 Amyotrophic lateral sclerosis (ALS) is a disease that results from nerve damage in the? | back 5 spinal cord. |
front 6 During what phase of an action potential do the sodium channels close and potassium channels open, releasing potassium from the neuron? | back 6 repolarization |
front 7 What occurs during the absolute refractory period to a neuron? | back 7 The neuron cannot generate an action potential. |
front 8 During repolarization of a neuron what happens? | back 8 sodium channels close and potassium rushes out of the cell to temporarily re-establish the membrane potential Potassium moves out of the axon |
front 9 During this process, influx of ____ cause vesicles in the axon bulb to fuse with the cell membrane, releasing ____________. | back 9 Ca2+, neurotransmitter |
front 10 From an evolutionary standpoint, this structure is considered the oldest, most primitive division of the brain. | back 10 hindbrain |
front 11 Cells that provide direct protection and physical support to neurons are? | back 11 neuroglial cells. |
front 12 The central nervous system is enclosed by membranes or meniges called the? | back 12 dura mater, pia mater , and arachnoid |
front 13 Saltatory conduction is? | back 13 the process of conduction leaping along myelinated neurons |
front 14 During a brain surgery, the surgeon passes an instrument through the dura mater. What part does he pass through next? | back 14 arachnoid |
front 15 Excitatory neurotransmitters encourage the generation of new electrical impulses by stimulating? | back 15 stimulating depolarization of postsynaptic neurons |
front 16 Region of brain the coordinates antagonistic muscle movements? | back 16 cerebellum. |
front 17 The three main anatomical and functional divisions of the brain are the? | back 17 forebrain, midbrain, hindbrain |
front 18 The reticular formation is associated with? | back 18 so-called reptilian brain that is necessary for survival; has both ascending and descending pathways with multiple nuclei |
front 19 The left and right sides of the cerebrum are interconnected by the | back 19 corpus callosum |
front 20 Regulation of the production of breast milk, carbohydrate metabolism, and temperature control are some of the functions of the? | back 20 hypothalamus |
front 21 Preganglionic motor neurons of the _________ division of the nervous system originate in the thoracic and lumbar regions of the spinal cord. | back 21 sympathetic division |
front 22 Insufficient production of acetylcholine in the synapses of the brain, abnormal tangled neurons, and large deposits of beta amyloid are problems associated with what disease? | back 22 Alzheimer's disease. |