Final Exam Flashcards - Articulatory-Resonatory System

what acts as the FILTER for sound

vocal tract

what are the four cavities of the VT

1. buccal

2. oral

3. pharynx

4. nasal

what are the three cavities within the pharyngeal cavity

1. oropharynx

2. nasopharynx

3. laryngopharynx

what are the facial bones

1. mandible

2. maxilla

3. palatine

4. nasal

5. zygomatic

what two bones make up the palate

1. maxilla (anterior ¾)

2. palatine (posterior ¼)

what are the bones of the skull

1. frontal

2. parietal

3. temporal

4. occipital

5. ethmoid (“core” of cranium)

6. sphenoid (butterfly shaped)

what innervates the tongue muscles

CN XII Hypoglossal

what is the function of the the intrinsic tongue muscles

fine adjustments

what is the function of the extrinsic tongue muscles

moving tongue as a whole

superior longitudinal muscle

elevate tip

inferior longitudinal muscle

shorten tongue, tip down

transverse muscle

narrow and elongate tongue

vertical muscle

flatten tongue

genioglossus

protrudes or retract tongue depending on contraction

styloglossus

draws tongue up and back, pulls sides of tongue up for trough

palatoglossus

raise dorsum and root of tongue or lower soft palate

hyoglossus

depress and retract tongue (or elevate hyoid)

what innervates the velar muscles

pharyngeal plexus (CN X vagus and CN IX glossopharyngeal)

what velar muscles elevate the velum

1. levator veli palatini

2. musculus uvulae

what velar muscles depress the velum

1. palatoglossus

2. palatopharyngeus

what innervates the muscles of the pharynx?

pharyngeal plexus

list the pharyngeal constrictors

superior, middle, inferior

what is the function of the longitudinal pharyngeal muscles

pharyngeal shortening

what is the function of the cricopharyngeus

restricts the opening to the esophagus