Hypernasal speech can result from an abnormal communication or passageway between the oral and nasal cavities, allowing air to move through them and out the nose unintentionally when the speaker tries to pronounce sounds such as m. A test for such air passage is to place a feather at the nostril while making the m sound; if it moves, there is air leakage, and the sound the speaker makes is not the sound that her or she intends. How does this happen? One way is through clefts of the palate. Closely aligned with cleft palates, though not necessarily cooccurring with them, are cleft lips. These can affect articulation and the sounds that require the lips to be sealed tightly.
The purpose of this is for you to apply your understanding of articulation and resonation to cleft lip/palate.
Analyze physiology of communication
Apply knowledge of anatomy and physiology of communication to diagnose and treat patients with communication disorders
Describe the causes and treatment of a cleft lip and the effects of the condition of the production of speech sounds.
Understanding Cleft Lip and Palate
Cleft lip and cleft palate are congenital conditions that occur when the lip or palate (the roof of the mouth) fail to fuse properly during fetal development. These are distinct but related conditions.
- Cleft Lip:
- A separation or split in the upper lip.
- Can range from a small notch to a complete separation extending into the nose.
- Occurs when the tissues that form the lip do not join completely before birth.
- Cleft Palate:
- A split or opening in the roof of the mouth (palate).
- Can involve only the soft palate (back of the mouth) or extend through the hard palate (front of the mouth).
- Occurs when the tissues that form the palate do not join completely before birth.
Causes of Cleft Lip and Palate
The exact causes are often complex and multifactorial, but they can include:
- Genetic Factors:
- Family history of cleft lip or palate.
- Specific gene mutations.
Understanding Cleft Lip and Palate
Cleft lip and cleft palate are congenital conditions that occur when the lip or palate (the roof of the mouth) fail to fuse properly during fetal development. These are distinct but related conditions.
- Cleft Lip:
- A separation or split in the upper lip.
- Can range from a small notch to a complete separation extending into the nose.
- Occurs when the tissues that form the lip do not join completely before birth.
- Cleft Palate:
- A split or opening in the roof of the mouth (palate).
- Can involve only the soft palate (back of the mouth) or extend through the hard palate (front of the mouth).
- Occurs when the tissues that form the palate do not join completely before birth.
Causes of Cleft Lip and Palate
The exact causes are often complex and multifactorial, but they can include:
- Genetic Factors:
- Family history of cleft lip or palate.
- Specific gene mutations.