Term
| A neuron that possesses several dendrites and one axon is a? |
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Definition
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| How many neurons are needed to form the simplest multi-synaptic reflex circuit |
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Definition
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| The portion of a neuron the contains more of its stainable Nissl bodies is the? |
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| Neurons whose cell bodies, axon and dendrites are all found within the central nervous system are called? |
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| The delicate connective tissue layer that surrounds each of the individual nerve fibers found within a peripheral nerve fascicle is called the? |
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Definition
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| What would you expect to find in significant numbers in a neurons presynaptic axon terminal |
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Definition
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| A nerve impulse is usually received by a neurons______, and is carried to the effector (muscle or gland cell) that it innervates by its _________ |
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Definition
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Term
| Nerve fiber transmits impulses very rapidly. From what you know about nerve fibers you would expect this fiber to be______and_____ |
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Definition
| Thick- heavily myelinated |
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Term
| Which of the following would you not find within the central nervous system? |
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Definition
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Term
| The major function of ependymal glial cell is? |
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Definition
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Term
| You would expect to find the cell bodies of sensory unipolar neurons in the: |
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Definition
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Term
| What is mostly responsible for guiding individual regenerating peripheral nerve fibers to their targets? |
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Definition
| Schwann cell sheaths and endoneurium |
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Term
| Arachnoid villi allow cerebrospinal fluid to leave the_________ and enter the ____________ |
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Definition
| Subarachnoid space--dural sinuses |
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Term
| The correct flow of cerebrospinal fluid is? |
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Definition
| Third ventricle, cerebral aqueduct, fourth ventricle |
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Term
| Three layers of meninges cover the brain and spinal cord. The delicate, vascular layer of the meninges that lies on the surface of the brain and spinal cord is called the? |
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Definition
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Term
| What structures contain only motor fibers? |
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Definition
| Dorsal rami of spinal nereves |
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Term
| The conus medullaris that forms the caudal tip of the spinal cord is located at approximately______level of the adult vertebral column |
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Definition
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| During lumbar punctures (spinal tap), a sample of cerebrospinal fluid is taken from the? |
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Definition
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Term
| Which horn of the spinal cord does not contain the cell bodies of motor neurons? |
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Definition
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| The skin of all of the following body regions is innervates by cervical spinal nerves except for the ? |
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Definition
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Term
| Death of the lower motor neurons whose cell bodies lie within the gray matter of the spinal cord will eventually result in? |
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Definition
| Skeletal muscle paralysis and atrophy |
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Term
| You step on a pin and automatically withdrawal your foot. For this response to occur you need a functionally intact? |
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Definition
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Term
| If the upper cervical spinal cord was damaged in a diving accident which term would more accurately describe the individuals expected motor deficit? |
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Definition
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Term
| The brain stem consists of the |
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Definition
| Midbrain, Pons, and medulla |
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Term
| You see a patient who has double vision. This person most likely has a problem involving the? |
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Definition
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Term
| Visceral afferent fibers in the______and_____ nerves provide sensory signals necessary for reflex regulation of respiration and blood pressure |
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Definition
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| All sympathetic preganglionic fibers originate within the gray matter of the |
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Definition
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| The______nerve provides parasympathetic innervation to thoracic and abdominal organs |
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Definition
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| The love of the brain that regulates activity within the hypothalamus and thus has a major effect on emotion and behavior in the _______ lobe |
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Definition
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Term
| Damage to the projection fibers found within the internal capsule usually results in |
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Definition
| Both sensory and motor symptoms |
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Term
| Cutting the corpus callosum in a person with left side dominance for speech and language would most likely result in? |
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Definition
| An inability to carry out verbal commands with the right side of the body |
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Term
| The thin layer of cells lining the back of the eyelid and covering the anterior surface of the eyeball is called |
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