Flashcards in Spinal Anat - Irene Gold Deck (258)
ant. Corticospinal tracts
voluntary motor of fine movements of the hand
fx of rubrospinal
facilitates flexors and inhibits extensor movement coordination
fx of reticulospinal
control of respiration and heartbeat; facilitate muscles, inhibit antagonists- Involuntary
fx of vestibulospinal
posture and balance. Head and eye coordination. Extension of erector spinae, involuntary
tx of tectospinal
postural reflexes to sight and sound
what is the upper motor neuron lesion?
involves any central neuron conveying impulses to the anterior horn. A lesion from the brain down to the anterior horn cell, but does not include the ant horn cell
what s the lower motor neuron lesion
involves the anterior horn cell, the ant. Roots of the peripheral nerve. A lesion from the ant. Horn cell to the periphery
what do you see with UMNLs?
spastic paralysis, increased muscle tone, hyperreflexia, pathological reflexes present
what do you see with LMNLs?
flaccid paralysis, decreased muscle tone, hyporeflexia, and absent pathological reflexes
what nerves carry parasympathetics?
CN 3,7,8,9,10 and S 2,3,4
do blood vessels have parasympathetic innervation?
What is the ganglia of tbe lesser splanchnic n?
what is the ganglia of the greater splanchnic n?
what is the ganglia of the least splanchnic n?
Ganglia of lumbar splanchnic n
sympathetic function of CN3?
pupil and ciliary body constriction
sympathetic function of CN7?
tearing and salivation
sympathetic function of CN9?
sympathetic function of CN10?
vagus and its ramifications
what are the neurotrasmitters used by the preganglionics of the sympathetic NS?
what are the neurotrasmitters used by the postganglionic sympathetic fibers?
adrenergic= epi and norepi
what neurotransmitters does the parasympathetic NS use?
for both pre and postganglionic is cholinergic
what is the order of the bones of the middle ear?
maleus, Incus, stapes (Cant MIS the order)
what makes up the bony labyrinth of the inner ear?
vestibule, semicircular canals, cochlea
what is w/in the vestibul?
utricle and saccule
what is w/in the semicircular canals?
swelling at one end called the ampulla
what is the modiolus?
the central pillar of the cochlea
what separates the two canals of the cochlea?
what are the canals of the cochlea?
scala vestibuli and scala tympani