Nervous System/Senses Lab Practical Study Guide
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58 Terms
Olfactory (I)
Smell
Optic (II)
Vision
Oculomotor (III)
Eye movement + pupil constriction
Trochlear (IV)
Superior oblique muscle
Trigeminal (V)
Facial sensation + chewing
Abducens (VI)
Lateral rectus (moves eye laterally)
Facial (VII)
Facial expression + taste (anterior 2/3)
Vestibulocochlear (VIII)
Hearing + balance
Glossopharyngeal (IX)
Taste (posterior 1/3) + swallowing
Vagus (X)
Parasympathetic (heart, lungs, digestion)
Accessory (XI)
Head/neck movement
Hypoglossal (XII)
Tongue movement
Frontal Lobe
Thinking, planning, movement
Parietal Lobe
Touch, temperature, pain
Temporal Lobe
Hearing, memory
Occipital Lobe
Vision
Central Sulcus
Separates frontal and parietal lobes
Lateral Sulcus
Separates temporal lobe
Longitudinal Fissure
Divides hemispheres
Precentral Gyrus
Primary motor cortex
Postcentral Gyrus
Primary somatosensory cortex
Broca’s Area
Speech production
Wernicke’s Area
Language comprehension
Corpus Callosum
Connects hemispheres
Septum Pellucidum
Separates lateral ventricles
Fornix
Memory pathway
Internal Capsule
Motor/sensory relay
Lateral Ventricles
Largest CSF-filled cavities
Interventricular Foramen
Opening to third ventricle
Third Ventricle
Midline cavity
Cerebral Aqueduct
Connects third to fourth ventricle
Fourth Ventricle
Between brainstem and cerebellum
Choroid Plexus
Produces CSF
Ependymal Cells
Circulate CSF
Midbrain
Contains visual and auditory reflex centers
Superior Colliculi
Visual reflexes
Inferior Colliculi
Auditory reflexes
Pons
Sleep and breathing regulation
Medulla Oblongata
Heart rate and breathing control
Cerebellum
Coordination and balance
Arbor Vitae
Cerebellar white matter
Vermis
Connects cerebellar hemispheres
Dura Mater
Tough outer meningeal layer
Arachnoid Mater
Middle layer
Pia Mater
Inner layer (touches brain)
Falx Cerebri
Separates cerebral hemispheres
Tentorium Cerebelli
Separates cerebrum and cerebellum
Cornea
Light entry
Lens
Focuses light
Retina
Photoreceptors
Macula
Central vision
Fovea Centralis
Sharpest vision
Optic Nerve
Carries visual signals
Pinna
Collects sound
Tympanic Membrane
Vibrates with sound
Ossicles
Amplify sound (malleus, incus, stapes)
Cochlea
Hearing
Semicircular Canals
Balance