Muscles of the Head and Neck Flashcards
Identify on a diagram the cervical muscles, muscles of
mastication, muscles of facial expression, hyoid
muscles, muscles of the tongue, and muscles of the
pharynx.
…
For the muscles listed above, identify the innervation,
origin, and insertion as well as action of the muscles.
…
Demonstrate during a class activity, by making faces,
the movements that result upon contraction of the
muscles of facial expression.
…
Given a clinical scenario in which facial paralysis is
evident, identify the muscles of facial expression that
were injured.
…
Muscles _____ under neural control (_____) to
perform their action.
shorten
contraction
end of the muscle attached to the LEAST
MOVEABLE structure
Origin
end of the muscle attached to the MOST
MOVEABLE structure
Insertion
Typically, insertion moves toward the ___
origin
Movement accomplished by muscle contraction ->
ACTION
List the 6 Muscle Groups
- Cervical muscles
- Muscles of facial expression
- Muscles of mastication
- Hyoid muscles
- Suprahyoid and infrahyoids - Muscles of the tongue
- Extrinsic and intrinsic muscles - Muscles of the pharynx
“A patient presents in your clinic for his
appointment. When updating the medical history,
the patient informs you that since his last visit, he
was in a car accident and sustained muscle damage
to his face. When the patient smiles, only the left
side of his mouth is elevated, and a scar is present
along the anterior portion of the patient’s right
cheekbone. The right side of his mouth does not
elevate. On the right side, grimacing and frowning
are possible. Given this information, what muscle
sustained damage in the accident?”
Zygomaticus
The muscles of facial expression are
supplied by the cranial nerve ___– The
Facial Nerve
VII
When an injury to this Facial nerve has occurred
or a patient has suffered from a stroke,
___ ____ can become evident
facial paralyisis
Wrinkles form in the
direction _____
to which the muscle
fibers run
perpendicular
