SLHS 2203 EXAM 2

Maxilla

Mandible

teeth

temporomandibular joint

risorious muscle

orbicularis oris

frontal bone

temporal bone

Zygomatic bone

nasal bone

vertical tongue muscle

flattens tongue

inferior longitudinal muscle

pulls tongue tip downward

superior longitudinal muscle

shortens tongue, makes it bunch in back

transverse muscle

narrows and elongates tongue

Palatoglossus

draws tongue up and back

Styloglossus

draws tongue up and back

Hyoglossus

draws tongue down and back

Genioglossus

moves tongue forward, back, and down

nasopharynx

oropharynx

laryngopharynx

superior concha

middle concha

inferior concha

root

bridge

dorsum nasi

ala

apex

superior constrictor

constricts pharynx

middle constrictor

constricts pharynx

inferior constrictor

constricts pharynx

Palatopharyngeus

pulls wall inward; narrows pharynx

Stylopharyngeus

pulls up and towards side; widens pharynx

Salpingopharyngeus

pulls the lateral walls upward and inward, narrows pharynx

palatal levator

lifts velum up and back

palatal tensor

pulls velum toward side

uvulus

shortens, lifts and increases the thickness of the velum

Glossopalatine

pulls velum down and forward

pharyngopalatine

pulls velum down and back

Temporalis

raises mandible

massester

raises mandible

Buccinator

keeps food in place while chewing

lateral pterygoid

lowers mandible

medial pterygoid

raises mandible

Mastication

chewing and mixing food with saliva in preparation for swallowing

deglutition

the act of swallowing

Bolus

mass of food chewed to the point of swallowing

dysphagia

difficulty swallowing

peristaltic

wavelike

perioral region

around the mouth

rooting reflex

an infant's response in turning toward the source of touching that occurs anywhere around the mouth

sucking reflex

An infant reflex in which the infant starts sucking when his or her lips are stroked.

Avular & Gag Reflex

causes respiration to cease; causes pharynx to elevate and constrict

cough reflex

response of the body to clear air passages of foreign substances and mucus by a forceful expiration

retching/vomiting reflex

retching- involuntary attempt at vomiting

vomiting- oral expulsion of gastrointestinal contents

oral preparatory stage

mastication (voluntary)

oral stage

transporting bolus to back of mouth (voluntary)

pharyngeal stage

involuntary passage of bolus to initiate swallow ~1 sec.

esophageal stage

involuntary passage of food through esophagus to stomach

parotid gland

secretes serous saliva

submandibular gland

produces thin secretions

sublingual gland

produces thick mucus

aspiration

any foreign particle that enters the airway past the vocal cords

How does aspiration occur?

loss of ability to close off the trachea allows food or liquid to enter the lungs