Muscles of Facial Expression – do not occur in pairs (page 335)

 

1.       FRONTALIS – forehead; elevates eyebrows

2.       OCCIPITALIS – base of skull; draws scalp posteriorly

3.       ORBICULARIS ORIS – circular around mouth; kissing muscle, closes lips, compresses lips against teeth

4.       ZYGOMATICUS – cheek bone; smiling (in corners of mouth)

5.       LEVATOR LABII SUPERIORIS – under eye; elevates upper lip, snarling

6.       DEPRESSOR LABII INFERIORIS – under corner of mouth; depresses lower lip

7.       BUCCINATOR – cheek; causes cheeks to cave in, produces sucking action

8.       PLATYSMA – under chin on neck; pouting, depresses mandible

9.       ORBICULRIS OCULI – circular around eye; closes eye

 

Muscles that Move the Mandible (page 337)

 

1.       MASSETER – cheek bone to angle of mandible; elevates mandible as in closing mouth

2.       TEMPORALIS – temple region; elevates mandible

3.       Gravity – dropping the mandible

 

Muscles that Move the Head (page 339, 343)

 

1.       STERNOCLEIDOMASTOID – on neck near jugular; flexes the head

2.       TRAPEZIUS – on back; extends the head

3.       CAPITIS – back of neck; extends the head

 

Flexing & Extending Trunk (pages 347, 366)

Flex Trunk (Bend Over)

Extend Trunk (Stand Up)

1

RECTUS ABDOMINUS – flexes vertebral column; fibers parallel to midline; compresses abdomen; defecation; urination; childbirth; forced expiration

1

ERECTOR SPINAE GROUP

2

EXTERNAL OBLIQUE – closer to surface; fibers diagonal to midline

2

QUADRATUS LUMBORUM

3

INTERNAL OBLIQUE – farther from surface

 

 

4

TRANSVERSE ABDOMINUS – deep; fibers perpendicular to midline

 

 

5

ILIACUS

 

 

6

PSOAS MAJOR

 

 

 

Muscles used in Breathing (page 345, 347)

INSPIRATION

EXPIRATION

1

DIAPHRAGM

1

INTERNAL INTERCOSTALS

2

EXTERNAL INTERCOSTALS

2

All Abdominal Muscles

 

 

 

A. RECTUS ABDOMINUS

 

 

 

B. EXTERNAL OBLIQUE

 

 

 

C. INTERNAL OBLIQUE

 

 

 

D. TRANSVERSE ABDOMINUS

 

Muscles that Move the Scapula; Shoulders (page 347, 351)

Hunch (Abduct Scapula)

Straighten Shoulders

1

SERRATUS ANTERIOR

1

TRAPEZIUS

 

 

2

RHOMBOIDEUS


 

Muscles that Move the Humerus (page 351, 354)

Flex

Extend

1

CORACOBRACHIALIS (354)

1

LATISSIMUS DORSI

Abduct

Adduct

1

DELTOID

1

PECTORALIS MAJOR

2

SUPRASPINATUS

 

 

 

Muscle that Move the Radius & Ulna (page 354)

Flex Lower Arm

Extend Lower Arm

1

BICEPS BRACHII

1

TRICEPS BRACHII

2

BRACHIALIS

 

 

3

BRACHIORADIALIS

 

 

 

Muscles that Move the Femur (page 366, 369)

Flex

Extend

1

PSOAS MAJOR

1

GLUTEUS MAXIMUS

2

ILIACUS

 

 

Abduct

Adduct

1

GLUTEUS MEDIUS

1

ADDUCTORS

2

GLUTEUS MINIMUS

2

GRACILIS

 

Muscles that Act on Tibia & Fibula; Lower Leg (page 366, 369)

Flex

Extend

HAMSTRINGS

QUADRICEPS FEMORIS

1

BICEPS FEMORIS

1

RECTUS FEMORIS

2

SEMITENDINOSIS – outside of leg; super

2

VASTUS LATERALIS

3

SEMIMEMBRANOSUS - deep

3

VASTUS MEDIALIS

4

SARTORIUS

4

VASTUS INTERMEDIUS

5

GRACILIS

 

 

 

Muscles that Move the Foot (page 372, 373, 375, 376)

Point Toe / Plantar Flexes

Dorsiflexes & Inverts Foot

1

PERONEUS = (Fibularis)

1

TIBIALIS ANTERIOR

2

GASTROCNEMIUS

 

 

3

SOLEUS