Articulation System pt. 2

Extrinsic Tongue Muscles

Changes the movement of the tongue

Propriception

Allows us to feel where our tongue and other articulators are during speech production

Superior and Inferior Lon.

elevate and depress tongue tip

Hard palate

Immobile articulator

Tongue

Biggest articulator

Intrinsic Tongue Muscles

Change shape of tongue

Source-Filter Theory

Source is the vocal folds; filter is articulators

Order of vocal tract cavities sup --> inf

Nasal, oral, laryngeal

Zygomatic Major

Labial elevator muscle

Mandible movement

Depress, elevate, protrude

Resonance

selectively increases energy/loudness to the components of a sound by changing volume, length and area of opening a vocal tract

Non-Biological Function of Larynx

sound generatoin

Glottal Fry

short and thick VF, strong medial compression, low subglottal air pressure

VF polyps

Increased mass and breathiness, lower pitch

True VF

thyrovocalis and thyromuscularis

Voicless

No VF vibration

Bernoulli Effect

drop in air pressure, created by an increase in airflow through a constriction; helps explain, in part, vocal fold adduction

Posterior Cricoarytenoid

Intrinsic abductor

VF Edema

Swelling

Thyroid Cartilage

Largest laryngeal cartilage

Falsetto

Highest pitch

Phases of phonation

vocal attack, sustained phonation, terminating phonation

Intensity

Loudness

Boyles Law

As volume increases, pressure decreases

Vertebrae

Thoracic, cervical, coccyx

Sternoclidomastoid

flexes neck; rotates head

Internal intercostals

used for expiration

Diaphragm

used for inspiration

Alveoli

Where gas is exchanged in the lungs

Total Lung Capacity

Residual volume, expiratory reserve v, inspiratory reserve v, tidal v

Internal respiration

Gas exchange that occurs at the level of the tissues

Quadratus lumborum

Iliac crest

Prevents aveoli from collapsing

Residual volume