Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
51 Cards in this Set
- Front
- Back
SCM
|
sternal head
o: manubrium sterni clavicular head: medial 1/3 of clavicle i: mastoid process of temporal bone, lateral 1/2 of superior nuchal line of occipital bone n: spinal accessory nerve a: bilateral - flex neck unilateral - lateral flexion same side, rotate head opposite side w/ chin up |
|
occipitalis
|
wrinkles skin over occipital bone
|
|
corrugator supercili
|
draw eyebrows medial and down
frowning and suffering |
|
procerus
|
draw medial angle of eyebrows downward
make transverse wrinkles over bridge of nose a pro looks you in between the eyes |
|
compressor nares
|
compress anterior nasal aperture
|
|
dilator nares
|
dilate anterior nasal aperture
|
|
levator labii superioris
|
raise upper lip and forward
|
|
zygomatic major
|
draw angle of mouth upward and lateral
smiling |
|
caninus
|
raise angle of mouth
make nasolabial furrow |
|
zygomaticus minor
|
elevate upper lip
make nasolabial furrow (along w/ caninus) |
|
depressor labii inferioris
|
draw lower lip down and lateral
chewing |
|
platysma
|
retract and depress corner of mouth
tense skin of anterior neck n: facial nerve CN VII |
|
orbicularis oris
|
close lips
apply lips to alveolar arch purse lips - whistle and suck |
|
triangularis
|
depress corner of mouth
sadness |
|
orbicularis oculi
|
close eye lid
compress lacrimal gland |
|
masseter
|
o: zygomatic arch
i: coronoid process of mandible, angle of mandible, ramus of mandible n: mandibular division of trigeminal nerve CN V a: elevation (close jaw), mandible side to side (grinding, chewing), protracts the mandible |
|
depressor septi
|
helps widen anterior nasal aperture during deep inspiration
|
|
thyrohyoid
|
depress hyoid bone
elevate thyroid cartilage (brings them together) n: ansa cervicalis C1-5 |
|
scalenus anterior
|
o: transverse processes of cervical vertebrae, anterior tubercles
i: scalene tubercle of 1st rib n: ventral rami of lower cervical nerves a: elevate 1st rib, lateral flexion same side, slight rotation opposite side |
|
scalenus medius
|
o: transverse processes of cervical vertebrae (posterior tubercles)
i: first rib n: ventral rami of lower cervical nerves a: raise first rib, lateral flexion of neck same side, slight rotation opposite side |
|
scalenus posterior
|
o: transverse processes of cervical vertebrae (posterior tubercles)
i: second rib n: ventral rami of lower cervical nerves a: raise second rib, lateral flexion of neck same side, slight rotation opposite side. |
|
anterior belly of digastric
a: n: |
a: bring hyoid bone up and forward
assist in opening jaws n: trigeminal nerve around this muscle is mylohyoid the digastric muscles both assist in opening jaws |
|
posterior belly of digastric
a: n: |
a: bring hyoid bone up and posteriorly
assist in opening jaw n: facial nerve CN VII |
|
mylohyoid
a: n: |
a: raise hyoid bone
raise tongue during swallowing/speaking raise floor of mouth n: trigeminal nerve CN V |
|
frontalis
|
raise eyebrows in surprise
transverse wrinkles on forehead when frowning |
|
mentalis
|
raise and protrude lower lip (pouting)
wrinkle skin of chin |
|
buccinator
|
compress cheeks
hold food in place when chewing, blow out air |
|
risorius
|
retract angle of mouth
|
|
temporalis
|
o: temporal fossa
i: ramus of mandible, coronoid process of mandible n: mandibular division of trigeminal nerve a: elevation (close jaw), retract mandible, side-to-side movement of mandible |
|
omohyoid
|
depress and retract hyoid bone after swallowing/speaking
n: ansa cervicalis C1-5 |
|
sternothyroid
|
draw thyroid cartilage down after swallowing/speaking
n: ansa cervicalis C1-5 |
|
sternohyoid
|
draw hyoid bone inferiorly after swallowing/speaking
n: ansa cervicalis C1-5 |
|
muscles of expiration
|
internal intercostals
transversus thoracic rectus abdominis internal oblique external oblique subcostals QL transverse abdominis |
|
muscles of inspiration
|
SCM
scalenes diaphragm serratus anterior levator costorum external intercostals |
|
levator costorum
|
o: transverse process C7-T11
i: rib below, close to tubercle n: dorsal rami of thoracic spinal nerves a: raise ribs increasing thoracic cavity. muscle of inspiration |
|
subcostals
|
o: internal surface of lower ribs near angle of the rib
i: internal surface of rib below, crossing one or two intercostal spaces n: intercostal nerves a: draw adjacent ribs together. w/ last rib fixed by QL, subcostals lower ribs decreasing the volume of the thoracic cavity. Helps w/ forced expiration. |
|
internal intercostals
|
o: costal groove
i: cranial border of rib below n: intercostal nerves a: depress ribs, keeping the intercostal spaces rigid during expiration |
|
transversus thoracic
|
o: posterior surface of xiphoid process and lower sternum
i: posterior surface of costal cartilages of ribs 2-6 n: intercostal nerves a: draw ventral portion of ribs down, decreasing the thoracic cavity. helps w/ forced expiration (along w/ subcostals) |
|
external intercostals
|
o: caudal (bottom) border of a rib
i: cranial (top) border of the rib below n: intercostal nerves a: raise ribs increasing volume of thoracic cavity, help diaphragm w/ inspiration |
|
diaphragm
|
sternal portion
o: xiphoid process posterior aspect costal portion o: inner surface of lower 6 ribs at costal margin lumbar portion o: arcuate ligaments and lumbar vertebrae by 2 crura i: central tendon n: phrenic nerve C3-5 a: draw central tendon down, lift lower ribs, which increase volume and decrease pressure inside thoracic cavity. therefore there is decreased volume and increased pressure in the abdominal cavity. the R dome of diaphragm is higher b/c the liver is below it. therefore the course of the left phrenic nerve is longer b/c the left dome is lower. |
|
TMJ
classification type ligaments nerve supply blood supply |
diarthrodial
modified hinge (condylar) lateral TM ligament - tense as mouth is opened, aids in preventing TMJ dislocation articular disc made of fibrocartilage nerve supply - mandibular division of trigeminal nerve blood supply - superficial temporal and maxillary arteries |
|
levator palpebre superior
|
a: raise eyelids
n: CN III occulomotor |
|
inferior oblique
|
n: occulomotor CN III
a: elevate eye, abduct, laterally rotate |
|
superior oblique
|
n: CN IV
a: depress, abduct, medially rotate |
|
lateral rectus
|
n: CN VI
a: out-abduct |
|
medial rectus
|
n: CN III occulomotor
a: in - adduct |
|
inferior rectus
|
n: CN III occulomotor
a: down and in |
|
superior rectus
|
n: CN III occulomotor nerve
a: up and in |
|
lateral pterygoid
|
o: sphenoid bone
i: neck of mandible, articular disc, capsule of TMJ n: mandibular division of trigeminal nerve a: open jaw (depression), protrude jaw, side-to-side movement |
|
medial pterygoid
|
o: sphenoid bone (both pterygoids origin on sphenoid bone)
i: medial surface of mandible, near angle n: mandibular division of trigeminal nerve a: close jaw(elevation), protract jaw (both pterygoids protract jaw), side-to-side movement (both side to side movement) |
|
longus capitis and colli
|
o: bodies and transverse processes of cervical and upper thoracic vertebrae
i: inferior surface of occipital bone and atlas n: ventral rami of cervical spinal nerves a: flex head, slight rotation of head and neck to opposite side |