Unit 3: Brain Flashcards Preview

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Flashcards in Unit 3: Brain Deck (31):
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2 types of tissue

nerves: Functional unit, integration and glia: supportive cells

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nerves have different function

primary sensory, motor, or integrative

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white matter

prepoderance of axons that are myelinated with different glia, form connection with cell bodies to distal part of brain

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grey matter

nerves lumped together, preponderance of cell bodies and unmyelinated processes; in sheet=cortex; in cluster: nuclei, some nuclei are named

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corpus callosum

connects hemispheres, fiber of cerebral white matter

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4 general divisions

cerebrum, cerebellum and brainstem, spinal cord

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2 hemispheres

composed of neural cortex, divided into lobes, connected to diencephalon and bs

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brodmann map

defines functional regions that have similar nerve cell arrangements and features, layers have functional significance

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central sulcus

anterior precentral (primary motor), postcental posterior (primary sensory), lateral sulcus, separates lobes

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pineal body

regulates circadean rhythms

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corpa quadrigemma

important for visual and auditory reflex

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CN1

smells

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Cn2

sees

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CN 3,4,6

moves eyes, cn3 pupil constriction

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CN5

feels front of head, chews

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CN7

moves face, taste, salivates, cries

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CN8

hears, regulate balance

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CN9

taste, salivate, swollow, monitor carotid body and sinus

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CN10

gut, lungs, heart, tastes, swallow, talks

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CN11

moves neck muscle, shrug shoulder

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CN12

moves tongue

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cerebellum

regulate and coordinates movement, anterior, posterior lobe and vermis

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5 division of adult brain

telencephaloon, diencephalon, mesencephalon, metenecphalon, myelencephalon, spinal cord

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spinal cord

relay station, extends from foramen magnum to L1-L2, reflexive information

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adult structure location

telencephalon (cerebral hemisphere), diencephalon (thalamus, hypothalamus), mesencephalon (midbrain), metencephalon (pons and cerebellum) myelencephalon (medulla)

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Frontal lobe

thinkin, planning, executive function, motor execution

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Parietal lobe

somatosensory perception integration of visual and somatospacial information

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Temporal lobe

Language function and auditory perception involved in long term memory and emotion

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Occipital lobe

Visual perception and processing

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Tegmentum

Part of midbrain, general structure orgin of CN 3, 4

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Tectum

part of midbrain, Corpora quadrigemma auditory and visual reflexes