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Neurology1
| Question | Answer |
|---|---|
| Which is not innvervated by the Autonomic motor system? A)skeletal muscle B)cardiac muscle C)smooth muscle D)glands | skeletal muscle |
| The longer neurons in the body could be how long? A)3 microns B)3 centemeters C)3 inches D)3 feet | 3 feet |
| The somatic nervous system is A)voluntary B)involuntary C)sympathetic D)parasympathetic | voluntary |
| Which neuroglial cells surround the blood vessels of the brain? A)ependymal B)parenchme C)astrocytes D)microglia | astrocytes |
| A sensory neuron sends an impulse from A)CNS to effector organ B)sense receptor to CNS C)effector organ to CNS D)CNS to sense receptor | sense receptor to CNS |
| Which of the following is not a function of myelination? A)insulates nerve fiber sB)protects the nerve fiber C)speeds up impules D)nourishes the neuron | nourishes the neuron |
| Nerve impulse transmission begins with A)Na+ gates opening B)Na+ gates closing C)K+ gates opening D)K+ gates closing | Na+ gates opening |
| Sensory neurons typically have 1 axon and A)1 dendrite B)2 dendrites C)3 dendrites D)4 dendrites | 1 dendrite |
| The resting potential of an average neuron is A)-90mV B)-70mV C)+30mV D)-50mV | -70mV |
| The potential of a hyperpolarized neuron would be A)-90mV B)-70mV C)+30mV D)-50mV | -90mV |
| Which of the following cells are phagocytic A)microglia B)ependymal C)astrocytes D)oligodendrocytes | microglia |
| EXTENSOR DIGITORUM A)musculocutaneous B)long thoracic nerve C)pectoralis major D)radial nerve E)ulnar nerve F)median G)axillary | radial nerve |
| BICEPS BRACHII A)musculocutaneous B)long thoracic nerve C)pectoralis major D)radial nerve E)ulnar nerve F)median G)axillary | musculocutaneous |
| DELTOID A)musculocutaneous B)long thoracic nerve C)pectoralis major D)radial nerve E)ulnar nerve F)median G)axillary | axillary |
| FLEXOR CARPI RADIALIS A)musculocutaneous B)long thoracic nerve C)pectoralis major D)radial nerve E)ulnar nerve F)median G)axillary | median |
| LUMBRICALS A)musculocutaneous B)long thoracic nerve C)pectoralis major D)radial nerve E)ulnar nerve F)median G)axillary | ulnar nerve |
| MEDIAL PECTORAL NERVE A)musculocutaneous B)long thoracic nerve C)pectoralis major D)radial nerve E)ulnar nerve F)median G)axillary | pectoralis major |
| THENAR EMINENCE A)musculocutaneous B)long thoracic nerve C)pectoralis major D)radial nerve E)ulnar nerve F)median G)axillary | median |
| All the nerves above belong to a plexus emerging from which spinal nerve A)C1- C4 B)T2 - T12 C)C5 - T1 D)L1 - L4 | C5 - T1 |
| Which of the following neurons is usually unipolar? A)afferent B)efferent C)association D)autonomic | afferent |
| The structure of a multipolar neuron that conducts impulses away from the cell body is A)dentrite B)axon C)soma D)astrocyte | axon |
| The gaps in the myelin between the Schwann cells are A)nodes of Ranvier B)myelin sheath C)end bulb D)terminal knob | nodes of Ranvier |
| In Saltatory conduction, impulses jump A)among little pieces of salt B)from node of Ranvier to node of Ranvier C)end bulb to end bulb D)from end bulb to dendrite | from node of Ranvier to node of Ranvier |
| When the electrical potential of the neuron achieves +30mV which gates close? A)Na+ B)K+ C)both D)neither | Na+ |
| The electrical potential of a neuron at rest is maintained by A)homeland security B)synaptic vesicles C)the Na+K+ pump D)none of the above | the Na+K+ pump |
| Neurotransmitters are found in A)Na+ channels B)K+ channels C)TV channels D)synaptic vesicles | synaptic vesicles |
| Which affects the speed of a nerve impulse A)fiber diameter B)myelination C)temperature D)all of the above | all of the above |
| Which of the following cells makes the white matter white in the CNS A)microglia B)ependymal C)astrocytes D)oligodendrocytes | oligodendrocytes |
| In an integration center, which kinds of neurons communicate? A)autonomic and somatic B)sensory and motor C)PNS and CNS D)none of the above | sensory and motor |
| When a single subthreshold stimulus is applied to a neuron there is? A)inhibition B)summation C)facilitation D)puppy love | facilitation |
| A threshold level stimulus would change the resting potential to A)-55 B)-65 C)-70 D)+55 | -55 |
| A bundle of neuron processes in the PNS is called a A)nerve B)tract C)ganglion D)nucleus | nerve |
| Pick the extrapyramidal tract A)lateral corticospinal B)rubrospinal C)spinaothalamic D)spinocerebellar | rubrospinal |
| What is the conus medullaris? A)connectivec tissue anchoring the cord to the sacrum B)the cauda equina C)the lowest part of the CNS D)fibers extending down from spinal cord | the lowest part of the CNS |
| The outermost meninge is the A)pia mater B)dura mater C)arachnoid mater D)alma mater | dura mater |
| An area of skin innervated by a sensory fibers of a given spinal nerve is A)sclerotome B)myotome C)dermotome D)all of the above | dermotome |
| The subarachnoid space contains A)fatty tissue B)serous fluid C)cerebrospinal fluid D)gin | CSF |
| Areas of gray matter in the cord are called A)nerve B)ganglia C)horns D)columns | horns |
| Which conveys impulses for pain and temperature sensation? A)spinocerebellar tracts B)corticospinal tracts C)spinathalamic tracts D)none of the above | spinathalamic tracts |
| The lateral gray horns of the spinal cord are composed of A)fossilized neurology professors B)B type cell bodies C)C type cell bodies D)autonomic postganglionic cell bodies | B type cell bodies |
| Where do upper motor neurons synapse with lower motor neurons? A)anterior gray horns B)Columbus circle C)posterior gray horns D)lateral gray horns | anterior gray horns |
| Difficulty holding a pen to write could be from: A)compression of the ulnar nerve B)compression of the musculocutaneous nerve C)compression of the axillary nerve D)too many video games | compression of the ulnar nerve |
| Pyramidal tracts control A)precise voluntary movement of skeletal muscles B)vasoconstriction and vasodilation C)muscle tone D)proprioceptive input to the brain | precise voluntary movement of skeletal muscles |
| Which part of a neuron is considered to be the trigger zone? A)dendrites B)soma c)axon hillock D)terminal knobs | axon hillock |
| Skeletal muscles are innervated by what kind of fiber? A)type A B)type B C)type C D)type D | type A |
| The ulnar nerve can become entrapped: A)In the carpal tunnel B)in the canal of Guyom C)in the cubital tunnel D)In the belly of coracobrachialis E)Both B and C above | Both B and C above |
| The median nerve can become entrapped A)Between the two heads of pronator teres B)Between the two heads of biceps C)Within the carpal tunnel D)Both A and C above | Both A and C above |
| Thoracic outlet syndrome is caused by presure on the A)cervical plexus B)brachial plexus C)axillary nerve D)none of the above | brachial plexus |
| Thoracic outlet syndrome can be caused by A)phone work B)sleeping position C)driving D)playing the fiddle E)a shoulder bag containing an A&P text F)all of the above | all of the above |
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