Nervous System Practice Exam Correctly Solved
The _ are part of the Central Nervous System, but the _ are part of the peripheral nervous system - ANSWER brain and spinal cord; cranial and spinal nerves The motor division of the Peripheral Nervous System has two pathways. Which effector is correctly paired to the pathway? - ANSWER involuntary-autonomic The sympathetic and parasympathetic are subdivisions of the - ANSWER autonomic nervous system Place the following items in order from simple to most complex. 1. Sodium 2. voltage gated channel 3. axolemma 4. action potential 5. axon - ANSWER 1.2.4.3.5. Choose the grouping that correctly describes spinal cord anatomy with regard too the filum terminale, conus medullaris and cuada equina - ANSWER filum terminale= anchors; conus medullaris=end; cuada equina=separation Damage to the dorsal root of a thoracic spinal nerve would have what result? - ANSWER A complete loss of sensation and sensory input to CNS While watching a documentary on primary care, you see a properly administered patellar relfex. You turn to your spouse and correctly describe the scenario. - ANSWER That stretch reflex is stimulated by a muscle spindle organ, and carried out by skeletal muscles. Since reflexes are to maintain homeostasis, it makes sense that the structures would correctly occur in the order listed below - ANSWER receptor, afferent neuron, intergration center, efferent neuron, effector choose the correct grouping - ANSWER rami communicates=sympathetic division; root=spinal tract; horn=spinal gray matter The cerebrospinal fluid - ANSWER is formed mostly by the choroid plexus and modified by ependymal cells The muscles of the thigh are innervated by which nerve and plexus? - ANSWER sciatic nerve- sacral plexus
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