Innervation Of Abdominal Viscera Flashcards
The greater splanchnic nerve arises from spinal cord segments ____. It’s from the ______ division of autonomics. It’s prevertebral ganglion is the ____ ganglion, and it’s destination is the ____ ____ (___), ___ and ____ ___ (___), _____ (__), ______ (__), _____ (____), and ____ ____.
The greater splanchnic nerve arises from spinal cord segments T5-10. It’s from the SYMPATHETIC division of autonomics. It’s prevertebral ganglion is the CELIAC ganglion, and it’s destination is the ABDOMINAL ESOPHAGUS (T5-6), LIVER and BILIARY TREE (T7-9), STOMACH (T6-10), SPLEEN (T6-10), PANCREAS (T6-10), and PROXIMAL DUODENUM.
The lesser splanchnic nerve arises from spinal cord segments ____. It’s from the ______ division of autonomics. It’s prevertebral ganglion is the ____ ganglion, and it’s destination is the _____ _____, ______, ______, _____ (_____), ________ (___), ______ ____ (_____).
The lesser splanchnic nerve arises from spinal cord segments T10-11. It’s from the SYMPATHETIC division of autonomics. It’s prevertebral ganglion is the SUPERIOR MESENTERIC ganglion, and it’s destination is the DISTAL DUODENUM, PANCREAS, JEJUNUM, ILEUM (T9-10), APPENDIX (T10), PROXIMAL COLON (T10-11).
The least splanchnic nerve arises from spinal cord segment ____. It’s from the ______ division of autonomics. It’s prevertebral ganglion is the _______. It supplies the ____ ___.
The least splanchnic nerve arises from spinal cord segment T12. It’s from the SYMPATHETIC division of autonomics. It’s prevertebral ganglion is the AORTICORENAL. It supplies the PROXIMAL COLON.
The lumbar splanchnic nerve arises from spinal cord segments ____. It’s from the ______ division of autonomics. It’s prevertebral ganglion is the _______. It supplies the ____ ___.
The lumbar splanchnic nerve arises from spinal cord segments L1-2. It’s from the SYMPATHETIC division of autonomics. It’s prevertebral ganglion is the INFERIOR MESENTERIC. It supplies the DISTAL COLON.
Sympathetic motor innervation to GI tract ensure _____ and ____ ____/____. Sympathetic sensory afferents carry ____ and ____ which can result from _____.
Sympathetic motor innervation to GI tract ensure VASOCONSTRICITON and DECREASED MOTILITY/SECRETION. Sympathetic sensory afferents carry PAIN and PRESSURE which can result from DISTENTION.
Paraympathetic cranial outflow foes to ____ and ____ via ___ nerve and ____ + ____ plexuses in the _____ ____.
Paraympathetic cranial outflow goes to FOREGUT and MIDGUT via VAGUS nerve and MYENTERIC AND SUBMUCOSAL plexuses in the INTESTINAL WALL.
Parasympathetic sacral outflow goes to _____ via spinal rami ____ and ____ ___ nerve —> _____ ____ plexus —-> _____ plexuses in ____ ____.
Parasympathetic sacral outflow goes to HINDGUT via spinal rami S2-4 and PELVIC PLANCHNIC nerve —> INFERIOR HYPOGASTRIC plexus —-> ENTERIC plexuses in INTESTINAL WALL.
____ afferents follow parasympathetic pathways for regulation of ___ and ____.
REFLEX afferents follow parasympathetic pathways for regulation of MOTILITY and SECRETION.
Enteric nervous system is made up of _____ (_____) plexus which is between _____ and _____ muscles and the ______ (_____) plexus between _____ muscle and ______ mucosae.
Enteric nervous system is made up of MYENTERIC (AUERBACH) plexus which is between LONGITUDINAL and CIRCULAR muscles and the SUBMUCOSAL (MEISSNER) plexus between CIRCULAR muscle and MUSCULARIS mucosae.
The enteric nervous system is modulated by:
___-ganglionic sympathetic fibers from _____ ganglia
___-ganglionic parasympathetic fibers in ___ and ___ ___ nerves
____ nerves with cell bodies in spinal and ____ ganglia
The enteric nervous system is modulated by:
POST-ganglionic sympathetic fibers from PRE-VERTEBRAL ganglia
PRE-ganglionic parasympathetic fibers in VAGUS and PELVIC SPLANCHNIC nerves
SENSORY nerves with cell bodies in spinal and VAGAL ganglia
Visceral pain:
____ and _____ localized
Pain is percieved in _____ because sensory afferents come from ____ _____ ___ _____.
Site corresponds roughly to _____, which are innervated by the same spinal cord level from which the diseased organ receives it’s innervation.
Nerve impulses pass through the ___-_____ _____ ganglia, reach the ____ ___ in the ____ nerves, and enter the ____ root via the ___ ____ _______.
Visceral pain:
DULL and POORLY localized
Pain is percieved in MIDLINE because sensory afferents come from BOTH SIDES OF SC.
Site corresponds roughly to DERMATOME, which are innervated by the same spinal cord level from which the diseased organ receives it’s innervation.
Nerve impulses pass through the PRE-VERTEBRAL SPLANCHNIC ganglia, reach the SYMPATHETIC CHAIN in the SPLANCHNIC nerves, and enter the DORSAL root via the WHITE RAMUS COMMUNICANS.
Referred Pain:
Perceived as originating in areas supplied by the ____ nerves entering the spinal cord at the same segment as the ____ nerves from the organ producing the pain because of shared central pathways by afferent neurons from different sites.
Usually ____ localized.
Referred Pain:
Perceived as originating in areas supplied by the SOMATIC nerves entering the spinal cord at the same segment as the SENSORY nerves from the organ producing the pain because of shared central pathways by afferent neurons from different sites.
Usually WELL localized.
Parietal Pain:
Aggravated by _____ and ____.
Nerve impulses travel within somatic sensory nerves. The fibers reach the spinal cord in the peripheral nerves corresponding to the cutaneous dermatomes from ___ to ___-_.
Parietal Pain:
Aggravated by MOVEMENT and COUGHING.
Nerve impulses travel within somatic sensory nerves. The fibers reach the spinal cord in the peripheral nerves corresponding to the cutaneous dermatomes from T6 to L1-3.
