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voluntary control over skeltal muscle
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∙ 12y ago
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What is the difference between pyramidal and extrapyramidal system?
The Similarity: Pyramidal and extra-pyramidal system are the descending tracts (motor tracts) of spinal cord.The Difference:1) Their tracts -Pyramidal system = lateral and anterior corticospinal tracts + corticobulbar tractExtra-pyramidal system = rubrospinal + olivospinal + lateral and medial reticulospinal + tectospinal + vestibulospinal tracts2) "Extrapyramidal tracts" don't reach their targets by traveling through the "pyramids of medulla". Pyramidal tracts go through the pyramids of medulla.3) Pyramidal tracts may directly innervate motor neurons of spinal cord or brainstem (anterior horn cells or certain cranial nerve nuclei). But, extrapyramidal tractsindirectly control the anterior horn cells (for modulation and regulation)4) Pyramidal system is responsible for fine, isolated, precise and specific movements. Extrapyramidal system is responsible for gross, syngergic movements which require the activity of large groups of muscles
Is Spastcity pyramidal or extra pyramidal?
pyramidal
If you suspect pyramidal tract lesion what do you check?
Disorders of the pyramidal tracts are characterized by spasticity and paralysis (e.g., stroke). The pyramidal motor system originating in the motor cortex provides control of delicate muscle movement. Tracts of the pyramidal motor system are the corticospinal tract, cortibulbar tract, coricopontine. It is often difficult to delineate a pyramidal from an extrapyramidal lesion during a clinical assessment. Good link for explanation: http://books.google.com/books?id=yY5scDAv8oUC&pg=PA60&lpg=PA60&dq=assess+pyramidal+motor+system+lesion&source=bl&ots=UyFuRjg71r&sig=xj0Gq91LYkRlVCZdra6mH6LTCPo&hl=en&ei=84LyScjSOpOwMfbP_MIP&sa=X&oi=book_result&ct=result&resnum=1#PPA67,M1
How is the judicial system of Great Britain organized?
The judicial system of Great Britain is pyramidal in organization.
Is NH3 a pyramidal shape?
It has a lone pair.So it is trigonal pyramidal
Why is ammonia pyramidal?
Ammonia is a harmful gas. It is pyramidal in shape.
Is NH3 a trigonal pyramidal?
It is pyramidal in shape.It has a lone pair.
What are the types of neurons that can be found in the external granular and external pyramidal layers of neocortex?
in external granular (layer 2) = stellate + small pyramidal neuronsin external pyramidal (layer 3) = medium pyramidal neurons
What does extrapyramidal mean?
relating to or denoting nerves concerned with motor activity that descend from the cortex to the spine and are not part of the pyramidal system.
Why does ammonia has a pyramidal shape?
There is a lone pair.It repels bond and shape become trigonal pyramidal.
What is the molecular geometry or shape of phosphorus trichloride (PCl3)?
The phosphorus trichloride (PCl3) has a molecule with a trigonal pyramidal form.
What is the bond angle for a square pyramidal?
The square pyramidal's bond angkle is 95 degrees hgjhgyuthvjyy,kufgy
