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H&N, thorax muscles
test 2
22
Anatomy
Professional
11/15/2010

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Cards

Term
sternohyoid
Definition
manubrium & medial end clavicle --> body of hyoid bone
innerv: C1-C3 (ansa cervicalis)
depresses hyoid bone after elevation for swallowing
Term
omohyoid
Definition
sup border scapula --> inf border hyoid bone
innerv: C1-C3 (ansa cerv)
depresses/retracts/steadies hyoid
Term
sternothyroid
Definition
post surface manubrium --> oblique line thyroid cart
innerv: C2 and C3 via ansa cerv
depresses hyoid bone and larynx
Term
thyrohyoid
Definition
oblique line thyroid cart --> inf border body and gr horn hyoid
innerv: C1 via CN12
depresses hyoid/elevates larynx
Term
platysma
Definition
fascia of sup. deltoid and pec major --> blends w/ fibers of facial muscles
innerv: platysma br. of CN7
tenses skin, helps depress mandible and move corners of mouth
Term
anterior scalene
Definition
t.p. C3-C6 --> scalene tubercle rib 1
innerv: ventral rami C4-C6
elevate ribs for active respiration
Term
middle scalene
Definition
posterior tubercles C4-C6 --> rib 1
innerv: ventral rami C4-C6
elevates rubs during active inspiration
Term
cricothyroid
Definition
cricoid cartilage --> thyroid cartilage (inf margin and horn)
innerv: external laryngeal n.
stretches and tenses vocal folds
Term
posterior cricoartytenoid
Definition
post surface cricoid cartilage --> muscular processes of arytenoid cartilage
innerv: recurrent laryngeal nerve
abducts vocal folds
Term
lateral cricoarytenoid
Definition
arch of cricoid cartilage --> muscular process arytenoids
innerv: rec. laryngeal n
adducts vocal folds
Term
thyroarytenoid
Definition
post surface thyroid cart --> muscular process arytenoids
innerv: rec. laryngeal n
relaxes vocal folds.
Term
transverse/oblique interarytenoids
Definition
between arytenoid cartilages
innerv: rec laryngeal n
closes inner cartilaginous portion rima glottidis
Term
genioglossus
Definition
sup part mental spine mandible --> dorsum of tongue, body of hyoid
innerv: CN12
depresses tongue, pulls ant. for protrusion
Term
hyoglossus
Definition
body/gr. horn hyoid bone --> side/inf aspect tongue
innerv: CN 12
depresses/retracts tongue
Term
styloglossus
Definition
styloid process/lig --> sides/inf aspect tongue
innerv: CN12
retracts tongue & draws up to create trough for swallowing
Term
palatoglossus
Definition
palatine apo soft palate --> side of tongue
innerv: phar plexus
elevates post part tongue
Term
masseter
Definition
inf border & medial surface zygomatic arch --> lat surface ramus of mandible & coronoid process
innerv: V3 (massateric n.)
elevates/protrudes mandible (closes jaw)
Term
temporalis
Definition
floor temporal fossa --> tip/medial process coronoid process and ant border ramus of mandible
innerv: V3 (deep temporal brs.)
elevates mandible (closes jaw)
Term
med pterygoid
Definition
lat pterygoid plate and pyramidal process palatine bone, tuberosity of maxilla --> med surface ramus of mandible, inf to mandibular foramen
innerv: V3 (med pterygoid n)
elevates mandible & closes jaw, protrudes jaw to side, grinding motion
Term
lat pterygoig
Definition
gr. wing spheniod, lat surface lat pterygoid plate --> neck of mandible, artic disc/capsule of TMJ
innerv: V3 (lat pterygoid n)
protrude mandible and depress chin, side to side movements of mandible
Term
ant belly digastric
Definition
dig. fossa mandible --> int. tendon dig.
innerv: mylohyoid branch (V3)
depresses mandible, raises hyoid bone and steadies it w/ swallowing/speaking
Term
post belly digastric
Definition
mylohyoid line mandible --> raphe/body of hyoid
innerv:mylohyoid n. (V3)
elevates hyoid, floor of mouth and tongue during swallowing/speaking
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