SPHP 111 Anatomy

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SPHP 111 Anatomy Physiology of Speech

• Larry Boles, Ph.D., CCC
• Associate Professor
• Department of Speech Pathology Audiology
• California State University Sacramento

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PHONATION I. Mechanics of VibrationII. The
Bernoulli Effect A misconception about
phonationIII. Laryngeal Anatomy
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IV. Fine Structure of the Vocal
Folds A. Cricoarytenoid Joint B. Cricothyroid
Cartilage C. Thyroid Cartilage
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D. Arytenoid CartilageE. EpiglottisF. Corniculat
e Cartilages
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G. Hyoid Bone
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H. Movement of the Cartilages
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V. Musculature of the Larynx
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A. Intrinsic Laryngeal Musculature 1. Adductors
Medial Compressors a. Lateral Cricoarytenoid
b. Transverse arytenoids c. Oblique
interarytenoids
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2. Abductor Muscle a. Posterior cricoarytenoids
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3. Tensors a. Cricothyroids b.Thyrovocalis
(Thyroarytenoid)
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4. Relaxers a. Thyromuscularis b. Superior
Thyroarytenoid (p. 192)
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VI. Summary of Intrinsic Muscle Function
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Extrinsic MusclesI. Laryngeal Elevators
a. Digastric (CN V anterior belly CN VII
for posterior belly) b. Stylohyoid (CN
VII) c. Mylohyoid (CN V)
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d. Geniohyoid (CN XII)e. Hyoglossus (CN
XII)f. Genioglossus (CN XII)
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g. Thyropharyngeus Muscle of Inferior
Constrictor (CN X)
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II. Laryngeal Depressors a. Sternohyoid (Spinal
Nerves C1-3) b. Omohyoid (Superior belly C1
Inferior belly C2-3) c. Sternothyroid (Spinal
Nerves C1-3) d. Thyrohyoid Muscle (CN XII)
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III. Summarize Phonation Anatomy
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Chapter 6 Physiology of PhonationI. Non-Speech
Laryngeal FunctionII. Laryngeal Function for
SpeechIII. AttackSkip 234-242, which covers
vocal registers.
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IV. Frequency, Pitch, and Pitch ChangeV. Optimum
PitchVI. Habitual PitchVII. Average Fundamental
FrequencyVIII. Pitch RangeIX. Pitch Changing
Mechanism
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X. Intensity Change