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REVIEW
INTRO.
MUSCLES OF
FACE & NECK
Rectus fibers
Under splenius
Oblique fibers
Occipitalis
The muscle name biceps means it has 2
____________.
origins
When a muscle contracts
and shortens, its ________
is pulled toward its
_________.
insertion
origin
Masseter
Temporalis
Buccinator
What is the term that
refers to a ring of muscle
that contracts to close an
opening; it works much
like a drawstring?
sphincter
The epicranius consists of what 2
muscles?
Frontalis
Occipitalis
What is the primary function of the
orbicularis oris?
closes and
protrudes the lips
Zygomaticus
Platysma
Known as the pouting muscle
When you clench your mouth
hard, what muscle is the prime
mover that can be palpated in the
cheek area?
masseter
The primary function of the frontalis
working with the occipitalis is to
__________________________.
raises eyebrows and
creates wrinkles in
forehead
Orbicularis
oris
What is the primary function of the
zygomaticus?
raises the corner of
the mouth; smiling
Name the Skeletal Muscle Actions:
Flexion
= decreasing the angle between 2 bones
Dorsiflexion
= decreasing the angle
between the foot and shin;
Plantar flexion = pointing toes;
Extension = increasing the angle between 2 bones
Abduction = moving a body part away from the
midline
Adduction = moving a body part toward the midline
Frontalis
What are muscles called that
contract to stabilize nearby joints?
Synergists
Fig. 9.25c
Lateral
Lateral
pterygoid
pterygoid
What is the primary function of the
orbicularis oculi?
Close eyes
Fig. 9.25c
Medial
pterygoid
The ____________ of a muscle is its
immovable (anchored) end.
origin
Orbicularis
oculi
Buccinator
Also known as the
“trumpeter’s
muscle”
TMJ
The primary muscles involved are the
following: temporalis, masseter, medial
pterygoid, and lateral pterygoid
Name the muscles involved
with TMJ.
Circumduction = movement in a circular (coneshaped) motion
Rotation
= turning movement of a bone about its
long axis; (i.e.atlas/axis)
Supination= turn at elbow so palms are up
Pronation = turn at elbow so palms are down
Inversion = sole of foot in
Eversion = sole of foot out
Elevation = lifting a body part; (i.e. shoulder shrug)
Depression= returning a body part to pre-elevated
position.
Give the term for the Relative Size of a muscle
maximus
longus
brevis
= largest
= longest
= shortest
Frontalis
Name the muscle that
does this action.
Name muscles of facial
expression.
Orbicularis oculi
Orbicularis oris
Epicranius (frontalis and
occipitalis
Buccinator
Zygomaticus
platysma
The frontalis is connected to the
occipitalis by
the_______________________
epicranial
aponeurosis
Muscle that
causes
“crows feet”
wrinkles
Orbicularis
oculi
Occipitalis
Oribicularis
oculi
Do you know what TMJ is, its
causes and its treatments?
Review page 308 in
text.
the winking
muscle
Orbicularis
oculi
Muscle that
allows
compression
on lacrimal
gland to
secrete
tears
Orbicularis
oculi
Platysma
The general term for the muscle that
contracts to cause the desired
action.
Prime mover or
agonist
Orbicularis oris
Known as the
Kissing Muscle
Platysma
Name the muscles of
mastication.
Masseter
Temporalis
Medial pterygoid
Lateral pterygoid.
Splenius capitus
Give the Term for the Direction of fascicles
relative to midline
• rectus
• transverse
• oblique
= parallel
= perpendicular
= at 45o angle
Give the Shape of each muscle
•deltoid = triangle
•trapezius = trapezoid
•serratus = saw-toothed
orbicularis = circular
Frontalis
Epicranius
aponeurosis
Buccinator
Zygomaticus
Semispinalis capitus
Temporalis
Platysma
Both of the orbicularis muscles are
= sphincter muscles
a ring of muscle that contracts to
close an opening; it works much
like a drawstring
Orbicularis
oris
Zygomaticus
The “smiling muscle”
Sternocleidomastoid