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CDO 335 Week Two Notes

by: Rachel Roede

CDO 335 Week Two Notes CDO 335

Rachel Roede
Anatomy & Physiology of Speech and Hearing
Lori Bissell

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About this Document

This set of notes includes the rest of the introductory information as well as the start of the Neuroanatomy section notes.
Anatomy & Physiology of Speech and Hearing
Lori Bissell
Class Notes
25 ?




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This 4 page Class Notes was uploaded by Rachel Roede on Friday September 11, 2015. The Class Notes belongs to CDO 335 at Central Michigan University taught by Lori Bissell in Summer 2015. Since its upload, it has received 42 views. For similar materials see Anatomy & Physiology of Speech and Hearing in Communication Disorders & Sciences at Central Michigan University.

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Popular in Communication Disorders & Sciences


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Date Created: 09/11/15
CDO 335 Week Two Notes 991159111115 Connective Tissue o Comprised of intercellular material known as matrix in which the cells are bound very complex 0 Can be solid liquid or gellike 0 Purpose to provide support protection 0 Includes Fascia Fibrous dense sheetlike tissue that surroundseparate organs Ligaments Fibrous tissue that bind bone to bone Tendons 0 Will ALWAYS bind muscle to another structure either cartilage or bone usually bone Aponeurosis 0 Flat expanded tendon giving attachment to muscular bers 0 ex diaphragm Cartilage Tissue providing strength and elasticity o Hyaline cartilage Found in larynx trachea bronchial pathways rib cage 0 Fibro cartilage Between vertebrae of spinal column and between jaw and skull acts as a shock absorber 0 Yellow cartilage Found in pinna nose epiglottis Bone Hardest of all connective tissue Muscular Tissue 0 Unlike connective tissue these muscles can contract movement Striated muscle AKA voluntary muscle skeletal muscle or somatic muscle 0 Looks striped Must make a conscious effort to move these muscles 0 Used to create movement 0 Usually attached to tendons Smooth muscle 0 Involuntary movement 0 Generally sheetlike o In digestive tract airway lungs Cardiac muscle 0 Involuntary striated muscle found in the walls of the heart Nervous Tissue 0 Highly specialized o Consists of neurons nerve cells 0 Function transmit information from one neuron to another from neuron to muscle from sensor receptors to other neural structures brain 0 Organization of Muscles O O 0 Origin Usually the attachment that is xed more proximal Usually doesn t move as much as other end Course Which way the bers run Insertion The structure being acted upon more distal where the muscle ends up Usually more mobile Func on What action is completed or what is accomplished by contraction of that muscle Innervation The nerve bers that supply the muscle to make it move System participation Does it work with a group of muscles or on its own 0 Example of organization of muscles Posterior Cricoarytenoid Muscle O O O O O 0 Origin 0 posterior surface of the cricoid lamina Course c up and out Insertion i muscular process of the arytenoid cartilage Innervation inn recurrent laryngeal branch of the vagus X nerve Function f abducts the vocal folds open System participation works alone 0 Elevations o For description of skeletal structures such as bone we make reference to elevations or depressions in the bone Tubercle Small rounded projection Head Enlargement at one end of a bone Crest o A prominent ridge 0 Ex hip bones Process 0 A bony prominence Ex spine process of vertebrae Spine o A sharp projection o Depressions o Fissure Cleft or deep groove ln brain superior longitudinal ssure o Sulcus A groove or furrow shallow o Foramen An opening or perforation so nerves can pass through 0 Meatus A tube or passageway Ex ear canal o Alveolus Small cell cavity or socket Ex Found in lungs o Fossa A pit or hollow Ex temple 0 Sinus A cavity within a bone Neuroanatomy 0 Components of the Nervous System 0 Peripheral Nervous System PNS 0 Central Nervous System CNS 0 Central Nervous System 0 Includes brain and spinal cordcolumn 0 Components are all housed within bone skull or vertebral column Refer to gure 111 on page 523 o Cerebrum or Cerebral Cortex Seat of consciousness Source of voluntary movement Cerebral longitudinal ssuresuperior longitudinal ssure o What divides the brain into left and right cerebral hemispheres Corpus Callosum 0 Network of nerve bers which connect the right and left hemispheres pg 558 Left hemisphere is language dominant The brain can be divided into 4 lobes pg 552 Frontal lobe O O O O O Largest makes up 13 of cortex Planning initiation and inhibition of voluntary movement Cognitive functioning reasoning problem solving Precentral GyrusMotor Strip Initiation of voluntary motor movements Broca s Area Only on left side Speech motor planning Moving muscles to produce speech Central Sulcus Rolandic Fissure Posterior boundary Lateral Sulcus Sylvian Fissure Inferior boundary 0 Pa rietal Lobe O 0 Primary site for somatic sense all sense except for vision Information coming in from the senses terminates here Postcranial gyrussomatosensory stripsensory strip Interprets the information Central Sulcus Anterior boundary Lateral Sulcus Inferior boundary Parietooccipital Sulcus Posterior boundary


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