week three vocab Flashcards
respiration
supplies the energy for speech
myelin
a fatty insulator covering the axon that speeds transmission of impulses
phonation
the production of speech (occurs inside larynx)
parts of nervous system
central nervous system
peripheral nervous system
articulation
controls the shape and configuration of the vocal tracts
afferent
axonal fibers that conduct impulses toward the central nervous sytem
glial cells
supports cells of the nervous system
frontal lobe
motor planning and execution
temporal lobe
auditory processing
occipital lobe
visual processing
parietal lobe
sensory association and spatial processing
left hemisphere is responible for
language
where is wernicke’s area
back of the first temporal gyrus
motor activity is controlled by what 2 major tracts of nervous system
pyramidal
extrapyramidal
result of damage to wernicke’s area
marked deficit in understanding what is heard
extrapyramidal tract
control of movement
pyramidal
direct pathway from cerebrum to the peripheral nerves
larynx
small hollow structure in the top of the neck
hypoglossal nerve
the cranial nerve that innervates the muscle of the tongue
velopharyngeal port
the opening between oral and nasal cavities that opens and closes for different speech sounds
source filter theory
explains how respiration, phonation, and articulation operate together in speech production
oral cavity
the tube in the vocal tract that extends from lips to back of the throat
bernoulli effect
the aerodynamic force that results from a decrease 9n air pressure against a surface, drawing a surface into a partial vaccuum
hard palate
is the anatomical structure important for the articulation of consonants
