Term
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Definition
Origin: epichronal aponeurosis
Insertion: skin of eyebrow & bridge of nose |
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Term
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Definition
Action: closes eye
Origin: medial margin of orbit
Insertion: skin around eyelids |
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Term
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Definition
Action: compresses, purses lips
Origin: maxilla & mandible
Insertion: lips |
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Term
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Definition
Action: compresses cheeks
Origin:alveolar process of maxilla & mandible
Insertion:blends into fibers of orbicularis oris |
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Term
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Definition
Action: smiling
Origin: zygomatic bone
Insertion: angle of mouth |
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Term
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Definition
Action: raises upper lip
Origin: zygomatic bone
Insertion: upper lip |
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Term
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Definition
Action: depresses corners of mouth
Origin: anterolateral surface of mandible
Insertion:skin @ angle of mouth |
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Term
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Definition
Action: protrudes lower lip, wrinkles skin on chin
Origin: anterior surface of mandible
Insertion: skin of chin |
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Term
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Definition
Action: protrudes mandible
Origin: zygomatic arch
Insertion: lateral surface of mandibular ramus |
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Term
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Definition
Action: elevates mandible to close jaw, retrudes (move backward) mandible
Origin: temporal bone
Insertion: coronoid process of mandible |
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Term
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Definition
Action: depresses and contracts tongue muscles
Origin: medial surface of mandible
Insertion: tongue |
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Term
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Definition
Action: depresses tongue
Origin: hyoid bone
Insertion: tongue |
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Term
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Definition
Action: elevates and retracts tongue
Origin: styloid process
Insertion: tongue |
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Term
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Definition
Action: flexion & lateral flexion of neck, rotates head so the face is turned superiorly and to the opposite side
Origin: manubrium, medial 1/3 of clavicle
Insertion: mastoid process, occipital bone near mastoid process |
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Term
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Definition
Action: stabilizes pelvis while walking
Origin: pubic crest, pubic sympahsis
Insertion: xiphoid process, costal cartilages of ribs 5-7 |
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Term
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Definition
Action: rotation and lateral flexion of trunk
Origin: external surfaces of inferior 8 ribs
Insertion: linea alba, pubic crest, pubic tubercle, iliac crest |
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Term
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Definition
Action: same as external oblique
Origin: thoracolumbar fascia, iliac crest, inguinal filament
Insertion: linea alba, pubic crest, inferior 3 or 4 ribs |
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Term
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Definition
Action: increases abdominal pressure during forced expiration
Origin: thoracolumbar fascia, inguinal ligament, costal cartilages or inferior 6 ribs, iliac crest
Insertion: linea alba, pubic crest |
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Term
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Definition
| a broad sheet covering deep back muscles in the thoracic and lumbar regions |
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Term
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Definition
| formed by the aponeuroses of the three oblique muscles, forms a fascial enclosure for the rectus abdominus |
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Term
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Definition
| a midline fibrous cord that separates the two muscles of the rectus abdominus |
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Term
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Definition
| Action: extension of vertebral column and head, lateral flexion of vertebral column and head, maintains normal curvature of vertebral column |
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Term
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Definition
Action: protraction and superior rotation of scapula, holds scapula against thoracic wall
Origin: external surfaces of ribs 1-8
Insertion: medial border of scapula |
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Term
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Definition
(deep to major)
Action: depression and inferior rotation of scapula
Origin: external surfaces of ribs 3-5
Insertion: coracoid procss of scapula |
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Term
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Definition
Action: flexion, medial rotation, and adduction of the arm
Origin: medial half of clavicle; sternum; costal cartilages of ribs 1-6
Insertion: lateral lip of intertubercular groove on humerus |
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Term
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Definition
Action: extension, adduction, and medial rotation of arm
Origin: spinous processes of T6-12l thoracolumbar fascia; iliac crest; inferior 3 ribs
Insertion: intertubercular groove of humerus |
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Term
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Definition
Action: superior fibers elevate scapula; middle fibers retract scapula, inferior fibers depress scapula
Origin: posterior surface of occipital bone; spinous processes of thoracic vertebrae
Insertion: lateral 1/3 of clavicle, acromion process; spine of scapula |
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Term
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Definition
Action: elevates scapula; acts with pectoralis minor to inferiorly rotate scapula
Origin: transverse processes of C1-4
Insertion: medial border of scapula near superior angle |
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Term
| rhomboids (major & minor) |
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Definition
| Actions: same as levator scapulae, also retracts scapula |
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Term
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Definition
Actions: anterior fibers- medial rotation and flexion of arm; middle fibers- abduction of arm; posterior fibers- lateral rotation and extension of arm; anterior & posterior fibers work together to adduct the arm
Origin: lateral 1/3 of clavicle, acromion process; spine of scapula
Insertion: deltoid tuberosity of humerus |
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Term
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Definition
Deep to the Trapezius
Action: abduction of arm Origin: supraspinous fossa of scapula Insertion: greater tubercle of humerus |
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Term
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Definition
Action: lateral rotation of arm
Origin: infraspinous fossa of scapula
Insertion: greater tubercle of humerus |
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Term
| biceps brachii (long head) |
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Definition
Action: flexion and supination of forarm; flexion of arm
Origin: superior margin of glenoid fossa of scapula
Insertion: radial tuberosity of radius, fascia of medial forearm via bicipital aponeurosis |
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Term
| biceps brachii (short head) |
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Definition
Action: same as long head
Origin: coracoid process of scapula
Insertion: same as long head |
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Term
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Definition
Action: flexion of forarm
Origin: anterior surface of humerus
Insertion: coronid process of ulna |
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Term
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Definition
Action: flexion and adduction of arm
Origin: coracoid process of scapula
Insertion: medial surface of humerus |
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Term
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Definition
| Action: extension of forearm, long head extends and adducts the arm |
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Term
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Definition
| Action: pronation and flexion of the forearm |
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Term
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Definition
| Action: flexion and abduction of wrist |
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Term
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Definition
| flexion and adduction of the wrist |
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Term
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Definition
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Term
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Definition
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Term
| extensor carpi radialis longus |
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Definition
| extension and abduction of wrist |
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Term
| extensor carpi radialis brevis |
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Definition
| extension and abduction of the wrist |
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Term
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Definition
| extension and adduction of the wrist |
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Term
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Definition
| extension of wrist and fingers |
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Term
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Definition
| extension & lateral rotation of thigh, powerful extensory for climbing & running, stabilizes pelvis & thigh while standing erect |
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Term
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Definition
| extension of leg; flexion of thigh |
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Term
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Definition
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Term
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Definition
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Term
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Definition
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Term
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Definition
| rexion, abduction, and lateral rotation of thigh; flexion of leg |
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Term
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Definition
| flexes, abducts, and medially rotates thigh; steadies trunk on thigh while standing |
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Term
| adductor magnus (adductor & hamstring parts) |
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Definition
| adduction & flexion of thigh; extension of thigh |
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Term
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Definition
| adduction & flexion of thigh |
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Term
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Definition
| adduction and flexion of thigh |
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Term
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Definition
| adduction of thigh; flexion and medial rotation of leg |
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Term
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Definition
| extension of thigh; flexion of leg |
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Term
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Definition
| extension of thigh; flexion of leg |
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Term
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Definition
| extension of thigh; flexion of leg |
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Term
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Definition
| dorsiflexion and inversion of foot |
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Term
| fibularis (peroneus) longus |
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Definition
| dorsiflexion and eversion of foot |
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Term
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Definition
| plantar flexion of foot; flexion of leg |
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Definition
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