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Details Title: Lower Motor Neurons Description: Lower Motor Neurons Total Flash Cards: 39 Created: 04/20/2006 14:33:59	To study from this set of flash cards, or to create your own your own study flash cards, register HERE. If you are already a registered user, CLICK HERE.
Cards Term where the lower motor neurons are located in the spinal chord Definition ventral horn Term neurons to the extrafusal fibers (large named muscle) Definition alpha neurons Term neurons to intrafusal fibers that go to muscle spindles Definition gamma neurons (small) Term what is an example of a polysynaptic tract Definition faciculus proprius Term when a cell body wants to become localized near the target of innervation. the continuous column becomes fragmented Definition neurobiotaxis Term type of nerve that CN3 is Definition GSE Term where is CN3 located Definition rostral colliculus Term what does CN3 innervate Definition rectus muscle, ventral oblique, levator palpebrae Term what type of nerve is CN4 Definition GSE Term where is CN4 located Definition caudal colliculus Term what does CN4 innervate Definition dorsal oblique eye muscles Term what type of nerve is CN6 Definition GSE Term where is CN6 located Definition at the caudal cerebellar peduncle Term what does CN6 innervate Definition retractor bulbi muscles Term what type of nerve is CN12 Definition GSE Term where is CN12 located Definition at the level of the obex Term what does CN12 innervate Definition tongue muscles Term what kind of nerve is CN5 Definition SVE Term where is CN5 located Definition at the rostral cerebellar peduncle Term what does CN5 innervate Definition muscles of mastication Term what kind of nerve is CN7 Definition SVE Term where is CN7 located Definition at the rostral part of the mylencephalon Term what does CN7 innervate Definition muscles of facial expression Term when CN7 wraps around CN6, what is this called Definition internal genu of the facial nerve Term what kind of nerve is CN9, 10, 11 Definition SVE Term where are CN 9, 10, 11 located Definition at the nucleus ambiguus in the mid mylenceph. Term what does CN 9 and 10 innervate Definition pharynx, larynx, esophagus, pallet Term what does CN11 innervate Definition cervical muscles Term what are the divisions of CN11 Definition external root: goes to cervical muscles, internal root: can blend with vagal nerve Term what part of the brain regulates parasympathetic motor Definition rostral hypothalamus Term what part of the brain controls the sympathetic motor Definition caudal hypothalamus Term what nerves are a part of the craniosacral component of the GVE Definition CN3, 7, 9, 10 Term what are the signs of a disrupted sympathetic motor system Definition Horner's syndrome: enopthalmus (sunken eyes), prolapsed 3rd eyelid, constricted pupil Term what is the function of the parasympathetic part of CN3 Definition constrict pupil Term what is the function of the parasympathetic part of CN7 Definition innervates salivary glands and lacrimal gland Term what is the function of the parasympathetic part of CN9 Definition innervates the zygomatic and the parotid salivary glands Term what is the function of the parasympathetic part of CN10 Definition whatever organ it goes to Term where is the 1st order neuron of the sacral parasympathetic GVE system Definition in the lateral horn of the sacral SC (pelvic nerve) Term where is the 2nd order neuron of the sacral parasympathetic GVE system Definition pelvic ganglion or terminal ganglion of organs