ND test 1 #2 Flashcards
Cerebral cortex
motor function
facilitate and inhibit antagonist muscles, modulate fine tune movement
o Basal ganglia
motor planning
o Cerebellum
have pathways in the cerebellum
Pons
voluntary motion of distal extremities
o Lateral corticospinal tract
voluntary motion of proximal extremities
rubrospinal tract
controls bilateral axial muscles (F, E)
Anterior corticospinal tract
positioning of head and neck and involved in balance
Vestibulospinal tracts
for posture and gait
Reticulospinal tract
coordination of head eye movement
tectospinal tract
Begins in primary motor cortex
Projects to brainstem
Voluntary motor control using cranial nerve tracts
Corticobulbar Tract
Neuron #1 is in the
brainstem or cord (autonomic)
Neuron #2
a peripheral ganglion (autonomic)
neuron 1 always uses ____ at it’s NT
ACH
Neuron 2 uses ____ if parasympathetic and ____ if sympathetic
ACH or parasympathetic
Noriepi for sympathetic
Short post ganglionic neurons, long preganglionic neurons
parasympathetics
CN III, VII, IX, X sacral spinal chord have what in common?
parasympathetic
Vagus nerve innervates ____ _____down to colon
digestive system
Closes pupil and makes lenses thicker for near vision
parasympathetic
Enteric Division is regulated primarly by?
the parasympathetic division Vagus nerve and sacral nerves
Enteric Division sympathetic via
splanchnics
Myenteric plexus of Auerbach controls ______
muscle contraction (enteric)
• Submucousal plexus of Meissner controls
____ ____size and ____function
blood vessel
secretory
(enteric system)
congenital absence of Auerbach’s plexus in some regions of the digestive system, balloons outward
• Also called Megacholic
Hirschsprung’s Disease
