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NWHSU Mash GA1Q4 neu

NWHSU Mash GA1Q4 Neurons

QuestionAnswer
Discuss in detail how most sympathetics are supplied to the thoracic viscera. You may begin with the white ramus communicans. Preganglionics - synapse in the superior, middle and inferior cervical ganglia and C1-4 ganglia of sympathetic trunk. Postganglionics - go to the thoracic viscera via small visceral branches.
Besides being a 3 sensory neuron relay, list 4 general principals about afferent tracts to the cerebral cortex. 1)crude awareness [sensations to thalamus]2) discriminating awareness [sensations to cerebral cortex] 3) most sensory neuron II axons decussate (cross over from body to brain sides) 4) "Principle of Divergence" (one-to-many sensation conduction)
Describe in detail how most parasympathetics are supplied to pelvic viscera? Preganglionics via pelvic splanchnic nerves, S2-4,synapse in the parasympathetic terminal ganglia near or in walls of viscera. Postganglionics to pelvic viscera, descending & sigmoid colon, rectum & upper part of anal canal.
Describe in detail how most parasympathetics are supplied to thoracic and abdominal viscera. Preganglionics via cranial nerve 10 to synapse in parasympathetic terminal ganglia. Postganglionics to thoracic and abdominal viscera.
Discuss in detail how most sympathetics are supplied to the head. You may begin with the white ramus communicans. Preganglionics go up, through the upper cervical ganglion, synapse there, then the postganglionic sympathetic neurons go to the head structures.
How are preganglionic parasympathetics supplied to abdominal and pelvic viscera? Preganglionics via pelvic splanchnics (S2-4) to terminal ganglia. Postganglionics to abdominal and pelvic viscera.
How are preganglionic parasympathetics supplied to thoracic and abdominal viscera? Preganglionics via CN 10(Vagus) to the terminal parasympathetic ganglion (near or in visceral wall); postaganglionics to thoracic and abdominal viscera
In general, where are parasympathetic ganglia located? Afferent fibers using parasympathetic routes are, in general, of what type (do NOT give letter classification) Located in or near organ innervated, physiological afferent
Innervation of the deep intrinsic back muscles. Posterior Primary Division of Spinal Nerves (Dorsal Rami)
Innervation of thyrohyoid Hypoglossal contribution to C1 - ansa cervicalis
Mnemonic for Sensory, Motor or Both. Some Say Marry Money, But My Brother Says Bad Business Marry Money
Name the main collateral ganglia. Superior mesenteric, inferior mesenteric, celiac
Parasympathetics have _______(long, short) preganglionic fibers. Both sympathetic and parasympathetic preganglionic fibers are _________ (myelinated, non-myelinated) Long, Myelinated
Pharmacological classification of postganglionic sympathetic fibers? Adrenergic
Pharmacological classification of postganglionic sympathetics to arrector pili muscles? Adrenergic
Pharmacological classification of preganglionic sympathetic fibers? Cholenergic
Specific tract which conducts pain, temperature, pressure and crude touch. Spinothalamic Tract
Specific tract which conducts proprioception and discriminating(fine) touch. Posterior White Column - Medial Leminscal System
Specific tract which decussates (crosses) in the pyramids of the medulla (be very specific) Lateral Corticospinal Tract
The effector organ of a somatic reflex arc. Skeletal m.
The lateral horn of the spinal cord functionally contains __________ (3 letter classification) neuron cell bodies. These neurons start impulses which innervate _________. GVE; glands, cardiac m., smooth m.
What does a sympathetic splanichnic nerve primarily contain? Where does it end? (be specific) Contains prefanglionic fibers. It ends at collateral ganglia.
What does a sympathetic splanichnic nerve primarily contain? Where does it end? (be specific) Preganglionic Fibers; the terminal and synapse in the collateral ganglia. (Upon termination of the splanchnic nerves, postganglionic fibers then travel from collateral ganglia to innervate viscera.)
What is meant by an intersegmental reflex? This is when the impulse involves more than 1 spinal cord segment.
What is meant by an ipsilateral reflex? Impulse and effector are on the same side of the body.
Give the spinal cord segments represented by the: a. greater splanchnic n. ; b. lumbar splanchnics a. greater - T5-T9 b. lumbar - L1-L2, L3
Give the spinal cord segments represented by the: a. greater splanchnic n. ; b. pelvic splanchnics a. greater - T5-T9 b. pelvic - S2-S4
Give the spinal cord segments represented by the: a. least splanchnic nerve; b. pelvic splanchnics a. least - T12; b. pelvic - S2-S4
Give the spinal cord segments represented by the: a. lesser splanchnic nerve; b. lumbar splanchnics a. lesser - T10-T11; b. lumbar - L1-L2, L3
Created by: AnatomyMash