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Stack #4546333
| Question | Answer |
|---|---|
| Dendrites conduct impulses _____ cell bodies. | towards |
| Which of the following is not a function of the central nervous system (CNS)? Integrating sensory information Evaluating the information initiating an outgoing response all of the above are functions of CNS | All of the above are functions of CNS |
| The part of the nervous system that transmits impulses from the CNS to the skeletal muscle is the: | Somatic Nervous system |
| Multipolar neurons have: | Multiple dendrites and one axon |
| The efferent pathways of the autonomic nervous system consist of the ________ nervous systems. | Sympathetic and parasympathetic |
| Fascicles are held together by a connective tissue layer called the | Perineurium |
| The white matter of the nervous system is made up of: | Myelinated fibers |
| Gray matter in the brain and spinal cord consists primarily of: | Cell bodies |
| One of the components of the blood-brain barrier is: | Astrocytes |
| Which is true of a reflex arc? | It always consists of an afferent neuron and an efferent neuron |
| Nerves that contain mostly afferent fibers are called _____ nerves. | Sensory |
| Regeneration of nerve fibers will take place only if the cell body is intact and the fibers have: | A neurilemma |
| Interneurons reside in the: | CNS only |
| Which of the following compounds cannot cross the blood-brain barrier? | Dopamine |
| The nervous system is organized to do which of the following? Detect changes in the external environment Detect changes in the internal environment. Evaluate changes in the environment All of the above are true. | All of the above are true. |
| Astrocytes attach to: neurons. oligodendrocytes. blood vessels. both A and C. | both A and C |
| The nervous system can be divided: according to its structure. according to direction of information flow. by control of effectors. in all of the above ways. | in all of the above ways. |
| The autonomic nervous system does not stimulate: | Skeletal muscles |
| Which is not true of the myelin sheath? It is associated with white fibers in the brain. It is important for nerve impulse conduction. It covers cell bodies in the brain and spinal cord. | It covers cell bodies in the brain and spinal cord |
| Which of the following is the deepest connective tissue layer of a nerve? | Endoneurium |
| Along a neuron, the correct pathway for impulse conduction is: | dendrite, cell body, and axon. |
| Neurons in the CNS have less chance of regenerating for all of the following reasons except: | microglia lay down scar tissue. |
| A neuron that has only one axon but several dendrites is classified as a _____ neuron. multipolar bipolar unipolar multidendritic | Multipolar |
| A neuron that transmits a nerve impulse toward the central nervous system is called a(n): motor neuron. sensory neuron. interneuron. bipolar neuron. | Sensory neuron |
| The afferent pathways of the autonomic nervous system: | carry feedback information to integrating centers in the brain. |
| The largest and most numerous types of neuroglia are the: | Astrocytes |
| Most unipolar neurons are usually: | Sensory neurons |
| n the human nervous system: | there are almost equal numbers of glia cells and neurons |
| The lymphatic system, like the circulatory system, is a closed circuit. | False |
| Small distinct regions of gray matter in the CNS are called: | Nuclei |
| 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 |
| This tends to be the longest cytoplasmic projection from a neuron. | Skeletal muscles |
| This is the site of communication between neurons. | Synapse |
| 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 |
| Nerves that originate from the brain are called _____ nerves | cranial |
| Neurons have | very limited capacity to repair themselves. |
| What term describes the bundles of nerve fibers within the central nervous system? | tracts |
| 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 _____ 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 _____ of a neuron is a single process that usually extends from a tapered portion of the cell body. | axon |
| Which of the following is not a structural classification of neurons? bipolar unipolar multipolar polar | polar |
| What structure of the Schwann cell is essential to normal nerve growth and the regeneration of injured nerve fibers? | neurilemma |
| Bundles of myelinated fibers make up the | white matter of the nervous system |
| The glia cells that help form the blood-brain barrier are the | astrocytes |
| Which of these glia cells are located in the peripheral nervous system? astrocytes ependymal cells oligodendrocytes Schwann cells microglia | Schwann cells |
| The ________ of a presynaptic neuron associates with the dendrite of a postsynaptic neuron. | axon terminal |
| Excitable cells that conduct the impulses are called | neurons |
Created by:
harkaran