Anatomy chapter 1 test

orbicularis oris

closes lips

VII facial

risorius

buccinator

retract the lips

VII facial

Lavator labii superioris

Zygomatic minor

Levator labi superior is alaeque nasi

elevates upper lip

VII facial

levator anguli oris

Zygomatic Major

elevates the upper lip

VII facial

depressor anguli oris

depressor labii inferioris

mentalis

depresses lower lip (pout)

VII facial

* Platysma

function-depresses the mandible to help chew

origin- fascia overlying pectoralis major; deltoids

insertion- corners of mouth, below symphysis mente, lower margin of mandible

innervation- VII facial

* Masseter

function- elevates mandible to help with chewing

origin- zygomatic arch

insertion- ramus of mandible

innervation- V trigeminal

Temporalis

medial pterygoid

elevates the mandible to help with chewing

V trigeminal

* Levator veli palatini

function- elevates the soft palate

origin- temporal bone

insertion- soft palate

innervation- XI accessory and X vagus nerve

* tensor veli palatini

function- dilates or opens the eustachian tube. It allows fluid from middle ear to drain into your throat

origin- sphenoid lateral eustachian tube wall

insertion- palate

innervation- V trigeminal

* palatoglossus

function- helps lower the palate

origin- velum

insertion- tongue (lateral)

innervation- CN X (vegus)

* Palatopharyngeus

function- helps lower the palate

origin- velum

insertion- inserts into the pharynx

innervation- CN X (vagus)

Stylopharyngeus

elevates and opens pharynx

X1 glossopharyngeal

Salpingopharyngeus

elevates the lateral pharyngeal wall

X vagus and X1 spinal accessory

intrinsic

inside the tongue, changes the shape of tongue

extrinsic

outside of the tongue, moves the tongue

Musculus Uvulae

allows for a stronger seal and better results for soft palate elevation

X Vagus

Pharyngeal Constrictors: Superior, middle, inferior

Cricopharyngeus

Controls opening to esophagus

XI accessory and X vagus

Lateral Pterygoid

Protrudes mandible

V trigeminal

superior longitudinal

intrinsic

makes tongue concave

hypoglossal nerve (CN XII)

vertical

Intrinsic

shortens the tongue and makes it convex (curls the tip down)

hypoglossal nerve (CN XII)

transverse

intrinsic

flattens and widens the tongue

hypoglossal nerve (CN XII)

Inferior longitudinal

intrinsic

shortens tongue

hypoglossal nerve (CN XII)

genioglossus

extrinsic

protrudes (sticks out) and depresses the tongue

hypoglossal nerve (CN XII)

insertion: tip and dorsum of tongue

Origin: Inner mandible

Hyoglossus

Extrinsic

depresses and retracts tongue

hypoglossal nerve (CN XII)

Insertion: sides of tongue

Origin: Hyoid

Styloglossus

extrinsic

draws tongue upward and backward

hypoglossal nerve (CN XII)

Insertion: Inferior sides of tongue

Origin: Styloid process of temporal bone

Pataloglossus

extrinsic

elevates the back of the tongue and closes off the oropharynx during swallowing

vagus nerve via the pharyngeal plexus

Insertion: Inferior sides of tongue

Origin: Palate