Anatomy of the Back
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Dorsal Columns/Medial Lemniscal Pathway = ? | * DECUSSATES ALL AT ONCE IN THE MEDULLA
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| Anterolateral System = ? | * DECUSSATES CONTINUOUSLY IN THE SPINAL CORD
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| Big part of the Anterolateral System ? | * Spinothalamic = This is the major tract we care about, leads to the conscious perception of pain
... (when you touch something hot, it is what says "hey, that's hot, remove your hand dumbass. "
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| Visceral non-pain stimuli (reflexes) follow ? | * the parasympathetic nerves backwards to reach the central nervous system... * Thoracic viscera: vagus nerves
....Foregut and midgut viscera: vagus nerves
....Hindgut & pelvic viscera: pelvic splanchnic nerves from S2-S4 spinal cord
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| Thoracic Viscerosensory Pathway = ? | * Cardiopulmonary plexus -->
Cardiopulmonary splanchnic nerves -->
Paravertebral ganglia -->
White rami communicantes -->
T1-T7 spinal nerves -->
Posterior roots (cell bodies in PRG) -->
Posterior horn of spinal cord
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| Pain pathways follow = ? | * go on sympathetics to spinal cord
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| Visceral pain and somatic pain superior to the pectinate line ? | * Visceral pain afferents follow sympathetic innervation (sacral and lumbar splanchnics) to spinal cord. Non-pain afferents follow parasympathetics (pelvic splanchnics) to spinal cord.
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| Inferior = ? | * Visceral pain afferents follow parasympathetic innervation (pelvic splanchnics) to sacral spinal cord (S2-S4)
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| SNS LvLs: HEad/Neck, CV, Resp, Stomach, Liver/GB = ? | * Head/Neck = T1 - 4..... * CV = T1 - 5.... * Resp: T2 - 7.... * Stomach = T5 - 9.... * Liver/GB = T6 - 9
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| Pancreas, Small Intestine, Colon/Rectum, Kidney, Ureter = ? | * Pancreas = T5 - 11... * Small Intestine = T9- 11.... * Colon/Rectum = T8 - L2.... * Kidney/Ureter = T10 - L1
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| Bladder, Ovary/Oviduct, Testes/Epididymus, Uterus, Prostate = ? | * Bladder = T10 - 11.... * Ovary/Oviduct = T9 - 10.... * Testes/Epi = T9-10, L1-L2.... * Uterus = T10 - L1.... * Prostate = L1 - 2
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