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 _________.

insertionorigin

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

Known as the pouting muscle

Platysma

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:

= decreasing the angle between 2 bones

= decreasing the angle between the foot and shin;

= pointing toes;

= increasing the angle between 2 bones

= moving a body part away from the midline

= moving a body part toward the midline

Flexion

Dorsiflexion

Plantar flexion

Extension

Abduction

Adduction

Frontalis

What are muscles called that contract to stabilize nearby joints?

Synergists

Fig. 9.25c

Lateral pterygoid

Lateral 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.

= movement in a circular (cone-shaped) motion

= turning movement of a bone about its long axis; (i.e.atlas/axis)

= turn at elbow so palms are up

= turn at elbow so palms are down

= sole of foot in

= sole of foot out

= lifting a body part; (i.e. shoulder shrug)

= returning a body part to pre-elevated position.

Circumduction

Rotation

Supination

Pronation

Inversion

Eversion

Elevation

Depression

Give the term for the Relative Size of a muscle

= largest= longest

= shortest

maximuslongusbrevis

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 compressi

on 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

• = parallel• = perpendicular• = at 45o angle

rectustransverseoblique

Give the Shape of each muscle

•deltoid =

•trapezius =

•serratus =

orbicularis =

triangle

trapezoid

saw-toothed

circular

Frontalis

Epicranius aponeuros

is

Buccinator

Zygomaticus

Semispinalis capitus

Temporalis

Platysma

Both of the orbicularis muscles are =  

a ring of muscle that contracts to close an opening; it works much like a drawstring

sphincter muscles

Orbicularis oris

Zygomaticus

The “smiling muscle”

Sternocleidomastoid