Communication Disorders Flashcards
Brief Intro to Cleft Palate (what is it, where does it happen, how does it happen)
It is a craniofacial anamoly
it is the opening of the hard palate, above the hard palate (submucous cleft) , or the unilateral or bilateral cleft of the lip
due to the aberrant formation during development of palate in utero
can be due to genetics, environmental, or causes such as smoking, drinking, medications, drugs)
Cleft is the lack of formation of? (2 bones, the two types of palates)
cause and effect
maxillary bones (2) and they grow inward to meet at midline forming the hard roof of the mouth at about 8 weeks of pregnancy
the soft palate or velum tissue also grows from lateral to midline and closes a few weeks after hard palate
because of this: an interruption in development may result in incomplete closure!
normal palates separate the oral from the nasal cavities allowing an individual to build pressure needed for speaking
Incidence of cleft
1 in every 700 births in the U.S
the highest incidence in Chinese Americans
followed by native Americans
organizations like the smile train raise funding for surgery
types of cleft palate
cleft of the hard palate- opening through the midline, although a partial can occur
submucous cleft- is the hidden cleft above the hard palate (bony), a sign is a nasal speech and bifid uvula
clefts of the lip- unliteral ( one side ) bilateral- both sides
going into dept what are some other issues that cleft causes for a person? (FADS)
Feeding, Auditory, Dental, Speech)
Feeding-
going into dept what are some other issues that cleft causes for a person? (FADS)
Feeding, Auditory, Dental, Speech)
Feeding- issues with eating, no separation between the oral and nasal cavities (can choke)
Auditory- impairment or fluctuations, hearing loss, malformed eustachian tubes or the physical arrangement of the ear causing middle ear infections
Dental- teeth are malformed, some are not even there, some are rotten at birth and need to be extracted = malocclusions
speech- like we know oral and nasal cavities are not separated and this can lead to a nasal sound ( problems with oral resonance, intraoral pressure ) people with cleft have a hard time building up a pressure with both cavities formed together (articulation errors)
even when repaired are there still speech errors?
yes, with cleft being repaired there can be weakness in the soft palate (velum tissue) (necessary for closing off the velopharyngeal port)
when surgery is necessary or wanted who is the team that helps? ( 9 people)
Surgeon and a plastic surgeon, speech therapist audiologist, parents, orthodontist, prosthodontist, social work and nursing)
therapy after is needed - bascially focusing on working on the formation of words,
the muscle weakness, the nasal (using a mirror), increase loudness, tactile cues to reinforce oral air flow
Functional or idiopathic disorders means?
we cannot find a cause (medically)
Organic or neurogenic disorders are when..
we can find the cause of the disorder (brain wise as well, through cat scans )
what do we characterize normal communication as?
is based on the assumption of intact, normal functioning nerves, great structure ( brain, spinal, peripheral, articulators, and bony structures )
Voluntary vs. automatic ( yes conscious.. but )
Voluntary implies conscious.. is where there is proper function between the cerebrum, cerebellum, and the cortex
we do not have to think about it AUTOMATIC due to it have becoming a patterning
Motor commands (N or pathways)
sent on nerves neural pathways for action (immediate)
Sensory pathways (surroundings)
carry information to the brain about the environment
Kinesthetic (think about where stars are)
sensation of body in space
somatic sensation (ouch, or its hot)
pain, temp
sensory
visual, hearing, smelling, facility, convert sensory through data that is understood through neurons and synapses
The Nervous system
*A complex hierarchical structure
*Composed of around 100 billion neurons
Each neuron communicates directly with 2,000 other neurons
Interaction of neurons provides at least 1 trillion points of communication
Many motor functions automated by practice
Brain alone receives moré than 40,000 signals/sec
Cerebral cortex has up to 18 billion neurons/cubic millimeter and
Each cubic millimeter of gray matter has 100 billion synapses
The 4 main lobes of the brain
frontal- contains motor strip and areas of speech (broca’s area)
parietal- sensory cortex
temporal- aduitory
occipital- visual
brainstem (homestasis), basal ganglia (helps regulate movement) , cerebellum - cordinates movement and balance)
Aphasia ( what is it, why does it happen, what are the effects)
it is a language disorder due to a brain injury, secondary strokes, Causes difficulty in comprehension and/or expression of language and speech that varies with the specific damage to the brain. May cause difficulty with wordfinding, constructing grammatical sentences, articulation, understanding speech of others, reading and writing
Hypo-nasality
not enough nasal
hypernasality
too much nasal (not enough resonance)