Term
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Definition
Sphincter around mouth A = Closes and protrudes lips
MUSCLES OF FACIAL EXPRESSION |
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Term
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Definition
Sphincter around eye A = Closes eyelids
MUSCLES OF FACIAL EXPRESSION |
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Term
| Zygomaticus (major & minor) |
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Definition
| A = Raise angle of mouth; smile O = Zygomatic bone I = Angle of mouth
MUSCLES OF FACIAL EXPRESSION |
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Term
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Definition
| A = Draws angle of mouth laterally as in tenseness O = Fascia of masseter muscle I = Angle of mouth
MUSCLES OF FACIAL EXPRESSION |
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Term
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Definition
| A = Compress cheek; blowing and sucking O = Alveoli of mandible and maxillae I = Orbicularis oris
MUSCLES OF FACIAL EXPRESSION |
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Term
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Definition
| A = Depress mandible; draws lip downward as in pouting; tightens and wrinkles skin of neck O = Fascia over deltoid and pectoralis major muscles I = Mandible, skin of chin and cheek
MUSCLES OF FACIAL EXPRESSION |
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Term
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Definition
| A = Raises eyebrows, wrinkles forehead, draws scalp foreword O = Galea aponeurotica I = Skin and muscles of forehead
MUSCLES OF FACIAL EXPRESSION |
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Term
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Definition
| A = Draws scalp backward O = Occipital bone I = Galea aponeurotica
MUSCLES OF FACIAL EXPRESSION |
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Term
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Definition
A = Elevates mandible O = Zygomatic arch I = Ramus of mandible
MUSCLES OF MASTICATION |
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Term
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Definition
| A = Elevates and retracts mandible O = Temporal line I = Coronoid process of mandible
MUSCLES OF MASTICATION |
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Term
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Definition
| A = Elevates hyoid and larynx, depresses mandible O = Hyoid bone I = Inner surface of lower border of mandible (chin); mastoid process of temporal bone
(floor of the oral cavity)
MUSCLES OF MASTICATION |
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Term
| Sternocleidomastoid (SCM) |
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Definition
| A = If both sides contract, it flexes the neck; if one side contracts, it rotates the head towards the opposite side O = Sternum and clavicle I = Mastoid process of temporal bone
MUSCLES THAT MOVE THE HEAD |
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Term
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Definition
| A = Both sides extend head; one side rotates head to the same side as the contracting muscle O = Ligamentum nuchae and spines of C7-T4 vertebrae I = Occipital bone and mastoid process of temporal bone
MUSCLES THAT MOVE THE HEAD |
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Term
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Definition
| A = Abducts scapula O = First 9 ribs I = Vertebral border of scapula, ventral side
MUSCLES THAT MOVE THE SHOULDER |
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Term
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Definition
| A = Depresses scapula; protracts scapula O = Ribs 3-5 I = Coracoid process of scapula
MUSCLES THAT MOVE THE SHOULDER |
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Term
| Rhomboideus (major & minor) |
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Definition
| A = Adducts scapula O = Spines of C7-T5 vertebrae I = Vertebral border of scapula
MUSCLES THAT MOVE THE SHOULDER |
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Term
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Definition
| A = Elevates (upper portion) or depresses (lower portion) scapula; adducts scapula, extends head O = Occipital bone, ligamentum nuchae, spines of C7-T12 I = Clavicle, acromion, and spine of scapula
MUSCLES THAT MOVE THE SHOULDER |
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Term
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Definition
| A = Flexes, adducts, and medially rotates arm O = Clavicle, sternum, costal cartilages of ribs 2-6 I = Greater tubercle of humerus
MUSCLES THAT MOVE THE ARM |
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Term
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Definition
| A = Extends, adducts and medially rotates arm O = Spinous processes of T7 through all lumbar through sacrum, posterior iliac crest, lumbodorsal fascia I = Intertubercular groove of humerus
MUSCLES THAT MOVE THE ARM |
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Term
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Definition
| A = Abducts arm O = Clavicle, acromion and spine of scapula I = Deltoid tuberosity of humerus
MUSCLES THAT MOVE THE ARM |
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Term
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Definition
| A = Abducts arm O = Supraspinous fossa I = Greater tubercle of humerus
MUSCLES THAT MOVE THE ARM |
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Term
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Definition
| A = Rotates arm laterally O = Infraspinous fossa I = Greater tubercle of humerus
MUSCLES THAT MOVE THE ARM |
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Term
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Definition
| A = Rotates arm medially O = Subscapular fossa I = Lesser tubercle of humerus
MUSCLES THAT MOVE THE ARM |
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Term
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Definition
| A = Medial rotates and adducts arm O = Inferior angle of scapula I = Intertubercular groove of humerus
MUSCLES THAT MOVE THE ARM |
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Term
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Definition
| A = Rotates arm laterally O = Lateral (axillary) border of scapula I = Greater tubercle of humerus
MUSCLES THAT MOVE THE ARM |
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Term
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Definition
| A = Flexes forearm (elbow) and supinates forearm O = Above the glenoid fossa; coracoid process of scapula I = Radial tuberosity
MUSCLES THAT MOVE THE FOREARM |
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Term
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Definition
| A = Flexes forearm O = Anterior surface of humerus I = Coronoid process of ulna
MUSCLES THAT MOVE THE FOREARM |
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Term
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Definition
| A = Extends forearm (elbow) O = Long head-below glenoid fossa; Lateral head-lateral and posterior shaft of humerus proximally; Medial head- posterior surface of humerus distally I = Olecranon process of ulna
MUSCLES THAT MOVE THE FOREARM |
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Term
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Definition
| A = Supinates forearm O = Lateral epicondyle of humerus I = Lateral surface of proximal radius
MUSCLES THAT MOVE THE FOREARM |
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Term
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Definition
| A = Pronates forearm O = Medial epicondyle of humerus; coronoid process of ulna I = Middle of the lateral surface of radius
MUSCLES THAT MOVE THE FOREARM |
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Term
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Definition
| A = Flexes and abducts palm O = Medial epicondyle of humerus I = Ventral surface of metacarpals II, III
MUSCLES THAT MOVE THE WRIST AND FINGERS |
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Term
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Definition
| A = Flexes and adducts palm O = Medial epicondyle of humerus; upper dorsal border of ulna I = Base of metacarpal III-V
MUSCLES THAT MOVE THE WRIST AND FINGERS |
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Term
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Definition
| A = Flexes palm (hand squeeze, not fingers) 15% of people don’t have it. Goes above carpal tunnel O = Medial epicondyle of humerus I = Palmar aponeurosis
*15% of people don’t have it. Goes above carpal tunnel
MUSCLES THAT MOVE THE WRIST AND FINGERS |
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Term
| Flexor digitorum superficialis |
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Definition
| A = Flexes phalanges O = Medial epicondyle of humerus, coronoid process of ulna, anterior surface of radius I = Ventral surface of middle phalanges 2-5
MUSCLES THAT MOVE THE WRIST AND FINGERS |
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Term
| Flexor digitorum profundus |
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Definition
| A = Flexes phalanges O = Anterior medial surface of ulna I = Ventral surface of distal phalanges 2-5
MUSCLES THAT MOVE THE WRIST AND FINGERS |
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Term
| Extensor carpi radialis (longus) |
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Definition
| A = Extends and abduct palm O = Lateral epicondyle of humerus I = Dorsal surface of metacarpal II
MUSCLES THAT MOVE THE WRIST AND FINGERS |
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Term
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Definition
| A = Extends and adducts palm O = Lateral epicondyle of humerus I = Metacarpal V
MUSCLES THAT MOVE THE WRIST AND FINGERS |
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Term
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Definition
| A = Extends phalanges and palm O = Lateral epicondyle of humerus I = Dorsal surface of phalanges
MUSCLES THAT MOVE THE WRIST AND FINGERS |
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Term
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Definition
| A = Extends thigh (hip joint) and laterally rotates thigh *the only one that LATERALLY ROTATES THIGH! O = Iliac crest, sacrum, coccyx I = Gluteal tuberosity of femur
MUSCLES THAT MOVE THE THIGH |
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Term
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Definition
| A = Abducts and medially rotates thigh O = Ilium I = Greater trochanter of femur
MUSCLES THAT MOVE THE THIGH |
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Term
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Definition
A = Abducts and medially rotates thigh O = Ilium I = Greater trochanter of femur
MUSCLES THAT MOVE THE THIGH |
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Term
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Definition
A = Tenses lateral fascia, flexes thigh (hip) and abducts thigh O = Iliac crest (anterior part) I = Lateral fascia of tibia
MUSCLES THAT MOVE THE THIGH |
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Term
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Definition
| A = Adducts thigh O = Pubis I = Linea aspera of femur
MUSCLES THAT MOVE THE THIGH |
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Term
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Definition
A = Adducts thigh O = Pubis and ischium I = Linea aspera of femur
MUSCLES THAT MOVE THE THIGH |
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Term
| Adductor brevis {Note: Adductor magnus & brevis are collectively called Adductor femoris in cat.} |
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Definition
A = Adducts thigh O = Pubis I = Linea aspera of femur
MUSCLES THAT MOVE THE THIGH |
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Term
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Definition
| A = Flexion of thigh at the hip O = Vertebral bodies of T12/L1-L5 (psoas major), Iliac fossa (iliacus) I = Lesser trochanter
MUSCLES THAT MOVE THE THIGH |
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Term
| Quadriceps femoris *Rectus femoris |
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Definition
| A = Extends leg (knee), flexes thigh (hip) O = Anterior inferior iliac spine I = Tibial tuberosity via patellar ligament
MUSCLES THAT ACT ON THE LEG |
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Term
| Quadriceps femoris *Vastus lateralis |
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Definition
| A = Extends leg O = Greater trochanter and lateral to linea aspera of femur I = Tibial tuberosity via patellar ligament
MUSCLES THAT ACT ON THE LEG |
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Term
| Quadriceps femoris *Vastus medialis |
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Definition
| A = Extends leg O = Medial to linea aspera of femur I = Tibial tuberosity via patellar ligament
MUSCLES THAT ACT ON THE LEG |
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Term
| Quadriceps femoris *Vastus intermedius |
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Definition
| A = Extends leg O = Anterior surface of femur I = Tibial tuberosity via patellar ligament
MUSCLES THAT ACT ON THE LEG |
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Term
| Hamstrings *Biceps femoris |
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Definition
| A = Flexes leg (knee), extends thigh (hip) O = Ischial tuberosity and linea aspera I = Lateral condyle of tibia and head of fibula
MUSCLES THAT ACT ON THE LEG |
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Term
| Hamstrings *Semitendinosus |
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Definition
| A = Flexes leg and extends thigh O = Ischial tuberosity I = Medial surface of proximal tibia
MUSCLES THAT ACT ON THE LEG |
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Term
| Hamstrings *Semimembranosus |
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Definition
| A = Flexes leg and extends thigh O = Ischial tuberosity I = Medial condyle of tibia
MUSCLES THAT ACT ON THE LEG |
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Term
|
Definition
A = Flexes leg and adducts thigh O = Pubis I = Medial surface of tibia below condyle
MUSCLES THAT ACT ON THE LEG |
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Term
| Sartorius longest muscle in the body |
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Definition
A = Flex thigh and leg, rotate thigh laterally O = Anterior superior iliac spine I = Medial surface of proximal tibia
MUSCLES THAT ACT ON THE LEG |
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Term
|
Definition
A = Dorsiflex foot O = Lateral condyle and body of tibia I = Metatarsal I
MUSCLES THAT MOVE THE FOOT AND TOES |
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Term
| Extensor digitorum longus |
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Definition
| A = Extends toes, dorsiflexes foot O = Lateral condyle of tibia, anterior surface of fibula I = Dorsal surfaces of phalanges 2-5
MUSCLES THAT MOVE THE FOOT AND TOES |
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Term
|
Definition
A = Plantar flexes and everts foot O = Lateral condyle of tibia, head of fibula I = Ventral surface of metatarsal I
MUSCLES THAT MOVE THE FOOT AND TOES |
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Term
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Definition
| A = Plantar flexes foot and flexes leg at knee O = Above lateral and medial condyles of femur I = Calcaneus by way of Achilles tendon
MUSCLES THAT MOVE THE FOOT AND TOES |
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Term
|
Definition
A = Plantar flexes foot O = Posteromedial tibia; Head of fibula I = Calcaneus by way of Achilles tendon
MUSCLES THAT MOVE THE FOOT AND TOES |
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Term
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Definition
| A = Flexes toes and plantar flexes foot O = Posterior surface of tibia I = Distal phalanges 2-5
MUSCLES THAT MOVE THE FOOT AND TOES |
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Term
| External abdominal oblique |
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Definition
| A = Compresses abdomen; flexes or bends spine; depresses ribs O = Lower 8 ribs I = Linea alba and iliac crest
MUSCLES OF THE ABDOMINAL WALL |
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Term
| Internal abdominal oblique |
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Definition
A = Compresses abdomen, flexes or bends spine; depresses ribs O = Iliac crest and thoracolumbar fascia I = Linea alba and lower ribs
MUSCLES OF THE ABDOMINAL WALL |
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Term
|
Definition
A = Compresses abdomen O = Iliac crest, lumbar fascia and costal cartilage of lower ribs I = Linea alba and pubis
MUSCLES OF THE ABDOMINAL WALL |
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Term
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Definition
| A = Compresses abdomen, flexes vertebral column, and depresses ribs O = Xiphoid process and costal cartilages of ribs 5-7 I = Symphysis pubis
MUSCLES OF THE ABDOMINAL WALL |
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Term
|
Definition
A = Increases size of thoracic cavity for breathing O = Xiphoid process, costal cartilages of ribs 4-10 and lumbar vertebrae I = Central tendon of diaphragm
MUSCLES USED IN BREATHING |
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Term
|
Definition
| A = Breathing [elevates ribs] Makes V O = One rib I = Next rib
MUSCLES USED IN BREATHING |
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Term
|
Definition
| A = Breathing [depresses ribs] Makes A O = One rib I = Next rib
MUSCLES USED IN BREATHING |
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Term
| Erector spinae -- postural muscles Iliocostalis (most lateral) |
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Definition
A = Extends the vertebral column and bends it laterally O = Iliac crest and ribs I = Ribs
MUSCLES THAT MOVE THE VERTEBRAL COLUMN |
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Term
| Erector spinae -- postural muscles Longissimus (intermediate) |
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Definition
A = Extends vertebral column O = Transverse processes of lumbar, thoracic and lower cervical vertebrae I = Transverse processes of the vertebrae above the vertebra of origin, plus the mastoid process of the temporal bone
MUSCLES THAT MOVE THE VERTEBRAL COLUMN |
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Term
| Erector spinae -- postural muscles Spinalis (medial) |
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Definition
A = Extends the vertebral column O = Spinous process of lumbar and lower thoracic vertebrae I = Spinous process of upper thoracic vertebrae
MUSCLES THAT MOVE THE VERTEBRAL COLUMN |
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