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Voice & Speech Anatomy

A presentation on vocal anatomy.

Joy Lanceta

on 1 September 2017

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Transcript of Voice & Speech Anatomy

The Skeletal System
Scapula (Shoulder)
The Larynx
Voice & Speech Anatomy
Diaphragm contracts down
Ribs and sternum expand up and out
Diaphragm releases up
Ribs and sternum come down and in
The Spine
- 7 vertebrae
- 12 vertebrae
- 5 vertebrae
- 5 fused vertebrae
- 3-4 fused vertebrae
CCM 2015
by D'Arcy Smith & Joy Lanceta

Vertebrae of the Cervical
The Ribs
Ribs 1-7 connects to sternum
Ribs 8-10 connects to costal cartilages of rib above sternum
Ribs 11-12 are "floating" and do not connect to sternum
The Sternum
Three Sections
Xiphoid Process
The Collarbone attach into the sternum through the cartilage that over time turns into bone.

The Pelvis
Framework of several fused bones
Illiac crest at top
Sitz (sitting) bones beneath
Attachment for abdominal muscles used for breathing
Scapula / Shoulder Blade
Respiration: 2 types
Involuntary Breathing: When we are asleep

Voluntary Breathing:
When we choose
(Simplified) Process of Respiration
Too much CO2
Air enters body
CO2 for O2
Body releases CO2
The Lungs
The Lungs
Right lung has three lobes
Left lung has two lobes because of heart
Lungs are cone-shaped (larger at bottom)
The Diaphragm
Divides torso between respiratory and digestive systems
Contracts down on inhalation and massages organs
Diaphragm is slightly higher on right side to make room for heart and liver

Internal & External Intercostals
Abdominal Muscles
Rectus Abdominus
Internal and External Obliques
Transversus Abdominus
Other Important Muscles
The Larynx
Glottis: Phonation!
Vocal Folds
Other Phonation Patterns
Thank You's
Rib Movement
The voice and the body are linked; one can have physicality without voice (in dance) but not voice without body. Both are moved and affected in union.

-David & Rebecca Carey
The muscles between the ribs (external and internal):

Internal are on the inside of the ribs
External are on the outside of the ribs
External - Inhalation
Internal - Exhalation
Four layers:
Rectus abdominus
Internal Obliques
External Obliques
Transversus Abdominus

Often confused with diaphragm, they aid in inhalation and exhalation
Inaccurately named the "six pack"
Connects to the 5th, 6th, 7th ribs and Xiphoid Process
Stabilizes pelvis, compresses abdomen, flexion of trunk
Deepest and most difficult to locate
Courses horizontally from back to front, like a girdle
Quadratus Lomborum (L) & Psoas (R)
: high register sometimes called head tone. Only the free edges of the folds vibrate. Posterior part doesn't vibrate but is held tense. Result is often slightly breathy because the folds don't necessarily touch.

Glottal Fly
: Low register. Folds are held together tightly. Free edges bubble the sound out. Wave pattern is unusual. Idling chainsaw or popcorn sound.
Curvature of Spine
Eric Armstrong
The Carl Stough Institute
Anatomy and Physiology Revealed Essential Anatomy
Arytenoid Cartilages move the vocal folds so they approximate one another (during glottal attacks, they close completely)
Exhaled air creates pressurized airflow. The airflow is what causes vocal folds to vibrate against one another, creating phonation
Vocal Fold Closure
- vocal folds further apart, allowing air to come through glottis.

- vocal folds approximate towards one another, creating a clear sound.

Pushed/Glottal Attack
- vocal folds come closely together, an inherently tense place.
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