Neuro Flashcards
How many pairs spinal nerves total / each region
31 pairs total
8 cervical 12 thoracic 5 lumbar 5 sacral 1 coccygeal
Ex special somatic sensory functions
Hearing, equilibrium, vision
Ex special visceral sensory function
Taste, smell
Which cranial nerves do NOT attach to brain stem
CN I, II (attach to forebrain)
Which cranial nerves are in the midbrain
CN III (Oculomotor), IV (Trochlear)
Which cranial nerves are in the pons
CN V (Trigeminal), VI (Abducens), VII (Facial), VIII (Auditory)
Which cranial nerves are in the medulla
CN VIII (Auditory), IX (Glossopharyngeal), X (Vagus), XI (Spinal Accessory), XII (Hypoglossal)
Trochlear (IV) vs Abducens (VI)
Trochlear»_space; Superior Oblique muscles
Abducens»_space; External rectus muscle
Functions of upper motor neurons
Mediate voluntary movement
Integration of skilled/complex movement
Carry inhibitory impulses
Upper motor neurons cross / desiccate @
Medulla
Damage to upper motor neuron above level of crossover presents as
Motor impairment on OPPOSITE side
Damage to upper motor neuron below level of crossover presents as
Motor impairment on SAME side