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Anatomy Activity 7
Week 7
| Question | Answer |
|---|---|
| Which of the following is not a structural classification of neurons? | polar |
| A signal conduction route to and from the central nervous system is a(n) | reflex arc |
| This tends to be the longest cytoplasmic projection from a neuron. | axon |
| The _____ nervous system is a complex network of nerve pathways embedded in the intestinal wall with a network of integrators and feedback loops that can act somewhat independently. | enteric |
| The somatic nervous system carries information to the | skeletal muscles |
| Neurons have: | very limited capacity to repair themselves. |
| What term describes the bundles of nerve fibers within the central nervous system? | tracts |
| Bundles of myelinated fibers make up the | white matter of the nervous system |
| Chemical signals diffuse between neurons at this location. | synapse |
| The efferent pathways of the autonomic nervous system can be divided into the __________ divisions. | parasympathetic and sympathetic |
| The _____ of a neuron is a single process that usually extends from a tapered portion of the cell body. | axon |
| Which of these glia cells are located in the peripheral nervous system? | schwann cells |
| Nerves that originate from the brain are called _____ nerves. | cranial |
| What structure of the Schwann cell is essential to normal nerve growth and the regeneration of injured nerve fibers? | neurilemma |
| The structural and functional center of the entire nervous system is the _____ nervous system. | central |
| These regions of the neuron direct electrical currents toward the cell body. | dendrite |
| The glia cells that help form the blood-brain barrier are the | astrocytes |
| This is the site of communication between neurons. | synapse |
| Excitable cells that conduct the impulses are called | neurons |
| The ________ of a presynaptic neuron associates with the dendrite of a postsynaptic neuron. | axon terminal |