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Cerebrum [structure]
2 Hemispheres with corpus callosum 5 nerve centers (Frontal, temporal, parietal,
occipital, insula)
Cerebral cortex
Cerebrum [function]
Interpret sensory impulses, initiate voluntary muscle movements, stores memory
Function depends on region; 3 Regions: Motor Sensory Association
Motor Areas
Motor Speech Area- mouth, tongue, layrnx = speech
Frontal Eye Field- eyes and eyelids (voluntary)
Impulse
Down brainstem
Through spinal cord
Synapse
Muscle fibers
Sensory & Association Areas
Sensory
Interpret impulses from sensory receptors
Parietal lobesOccipital lobesTemporal lobes
Diencephalon Thalamus- central relay station
Hypothalamus- regulates homeostasis
Limbic System- controls emotional experience and expression
Brainstem Midbrain- connects brainstem and spinal cord, reflex
centers
Pons- separate midbrain and medulla, relay impulses
Medulla Oblongata- everything passes through it
Reticular Formation- activates cerebral cortex
Choroid Plexuses- secrete cerebrospinal fluid
Touch and Pressure
Free-Nerve Endings- epithelial tissue
Meissner’s Corpuscles- connective tissue (no hair)
Pacinian Corpuscles- connective tissue (subcutaneous)
Pain Receptors Protect Adapt Poorly Decreased blood flow accompanied by
lower oxygen concentration Viscera
Pain Fibers
Acute•Thin, myelinated•Rapid, sharp pain•Skin
Chronic•Thin, unmyelinated•Slow, Dull ache•Deeper•Can cause prolonged suffrage
Can cause prolonged suffrageRegulation of pain impulse
Smell and Taste Both have their own neuron
process Flavor- a combination of
what you taste and smell
Amyotrophic Lateral Sclerosis (ALS)- Neurodegenerative Disease that effects the neurons in the brain and spinal cord.
Works CitedCh.10 Somatic & Special Senses. Digital image. AnatomyESHS -. N.p., n.d. Web. 22 Mar. 2015.
"CH 13 Basic Reflex Terminology." CH 13 Basic Reflex Terminology. N.p., n.d. Web. 22 Mar. 2015.
Eharnett. "The Whole Package: The Relationship between Taste and Smell." Web log post. The Whole Package: The Relationship between Taste and Smell. N.p., n.d. Web. 22 Mar. 2015.
Motor Neuron. Vector Diagram. Digital image. Dreamstime. N.p., n.d. Web. 22 Mar. 2015.
Nervous System Intro. Digital image. Nervous System Intro. N.p., n.d. Web. 22 Mar. 2015.
Wann Hilft Das Homöopathische Mittel Natrium Muriaticum Bei MS? Digital image. Wann Hilft Das Homöopathische Mittel Natrium Muriaticum Bei MS? N.p., n.d. Web. 22 Mar. 2015.
"What Is ALS?" - The ALS Association. The ALS Association, n.d. Web. 11 Feb. 2015.