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Nervous System Quiz
| Term | Definition |
|---|---|
| Olfactory nerve function | smell |
| optic nerve function | vision |
| oculomotor nerve function | pupillary reaction/size, adducts eyes, rolls downwards |
| trochlear nerve function | rolls eyes upwards |
| trigeminal nerve function | chewing and facial feeling |
| abducens nerve function | moves eyes laterally |
| facial nerve function | expression, taste |
| auditory nerve function | hearing and balance |
| glossopharyngeal nerve function | taste, throat/swallowing (pharyngeal muscles) |
| vagus nerve functions | muscles of pharynx and larynx, gag reflex (talking swallowing) |
| accessory nerve function | traps and sternocleidomastoid |
| hypoglossal nerve function | tongue movement |
| frontal lobe | controls higher intellectual processes like planning and problem solving, along with voluntary movement, talking, and personality |
| parietal lobe | cutaneous sensory areas (touch), understanding speech and choosing proper words, spatial awareness |
| occipital lobe | visual processing and interpretation |
| temporal lobe | auditory information, language, memory, recognition, emotion, smell |
| wernicke's area | in the parietal lobe, understanding written and spoken language |
| broca's area | frontal lobe, controls muscles for speech |
| basal ganglia | release dopamine, which helps initiate and control movement, disorders = Parkinson's and Huntingtons |
| order of csf flow | lateral ventricles -> 3rd ventricle -> cerebral aqueduct -> 4th ventricle -> subarachnoid space |
| diencephalon | surrounds 3rd ventricle, contains thalamus and hypothalamus |
| thalamus | acts as selective gateway for sensory impulses, sends sensory information to whatever cortex is necessary for interpretation |
| hypothalamus | helps maintain homeostasis by linking nervous and endocrine system, regulates body temp, hunger, thirst, sleep cycles |
| limbic system | controls emotional experience and expression, influences behavior and survival: instincts, moods, drives |
| brainstem, 3 parts | midbrain, pons, medulla oblongata |
| midbrain | auditory and visual reflexes |
| pons | depth and rate of breathing |
| medulla oblongata | visceral functions (cardiac, vasomotor center), crossover of motor fibers |
| reticular formation | increased activity = wakefulness, decreased activity = coma |
| cerebellum | outer layer of gray matter = cerebellar cortex. inner layer of white matter = arbor vitae. coordinates skeletal muscle activity and posture |
| autonomic nervous system | controls involuntary movement, pre and post ganglionic neurons, motor neurons |
| sympathetic nervous system | fight or flight |
| parasympathetic nervous system | rest and digest |
| preganglionic nerves/parasympathetic postganglionic | release acetylcholine, called cholinergic fibers |
| postganglionic sympathetic neurons | release norepinephrine, called adrenergic fibers |
| cerebrum | largest section, functions in higher mental functions, sensory and motor functions |
| diencephalon | processes sensory input, maintains homeostasis |
| cerebellum | coordinates muscular activity |
| brainstem | visceral activites, connects nervous system |
| corpus callosum | connects two cerebral hemispheres |
| gyri | ridges |
| sulci | grooves (shallow) |
| fissures | grooves (deep) |
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