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25 Cards in this Set
- Front
- Back
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zygomaticus major |
origin: zygomatic bone insertion: skin of corner of mouth action: pulls corner of mouth superiorly and laterally |
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zygomaticus minor |
zygomatic bone insertion: upper lip just medial to corner of mouth action: pulls upper lip superiorly |
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masseter |
origin: zygomatic arch insertion: mandibular angle action: elevates and protrudes mandible |
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platysma |
origin: fasciae of the thorax insertion: mandibular area innervation: facial nerve action: contraction of the neck skin synergist of the mimetic muscles |
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sternocleidomastoid |
sternal part: sternum( manubrium) clavicular part: clavicle insertion: temporal bone ( mastoid process) innervation: accessory nerve action: flexion rotation lateroflexion of head |
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biceps brachii |
long head: supraglenoid tubercle short head: coracoid process of scapula insertion: radial tuberosity action: elbow joint: flexion and supination shoulder joint: flexion,abduction and internal rotation of humerus |
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brachialis |
humerus insertion: ulnar tuberosity action: flexion at the elbow joint |
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triceps brachii |
3 heads: long head: scapula medial head: posterior humerus, medial inter muscular septum lateral head: posterior humerus,lateral intermuscular septum insertion: olecranon of ulna innervation: radial nerve action: elbow joint: extension shoulder joint: long head: extension and adduction |
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coracobrachialis |
scapula(coracoid process) insertion: humerus action: flexion, adduction,internal rotation inn: musculocutaneous n |
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pronator teres |
humeral head:medial epicondyle ulnar head: coronoid process insertion: lateral radius action: elbow weak flexor forarm: pronation inn: median nerve |
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flexor carpi radialis |
medial epicondyle of humerus insertion: base of 2nd metacarpal inn: median n. action: wrist: flexion and abduction of hand |
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palmaris longus |
medial epicondyle of humerus insertion: palmar aponeurosis action: elbow: weak flexion wrist: flexion tightens palmar aponeurosis inn: median nerve |
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flexor carpi ulnaris |
humeral head: medial epicondyle ulnar head: olecranon insertion: pisiform , base of 5th metacarpal inn: ulnar n action: wrist flexion and adduction of hand |
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flexor digitorum superficialis |
humeral ulnar head: medial epicondyle of humerus radial head: upper half of anterior border of radius insertion: sides of middle phalanges of 2nd to 5ht digits (3 phalangeal finger double insertion chiasma tendium) median nerve action: elbow: weak flexor wrist, MCP, PIP joints of 2-5th digits: flexion |
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pronator quadratus |
distal quarter of ulna insertion: distal quarter of radius action: hand pronation distal radioulnar joint: stabilization inn: median nerve |
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brachioradialis |
distal humerus,lateral intermuscular septum insertion: styloid process of radius radial n action: elbow flexion forarm: semipronation |
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extensor carpi radialis longus |
lateral supracondylar ridge of distal humerus and intermuscular septum insertion: 2nd metacarpal base action: elbow: weak flexion wrist: extension and abduction |
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extensor digitorum |
common head ( lateral epicondyle of humerus= insertion: dorsal digital expansion of 2nd to 5th digits radial nerve ction: wrist extension, MCP, PIP of 2nd to 5th digits : extension and abduction of fingers |
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fibularis longus |
fibula insertion: medial cuneiform, 1st metatarsal action: talocrural joint: plantar flexion subtalar joint: eversion inn: superficial fibular nerve |
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flexor hallucis longus |
fibula + interosseous membrane insertion 1st distal phalanx tibial nerve action: talocrural joint: plantar flexion subtalar joint: inversion MTP IP of first toe : plantar flexion
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abductor hallucis |
calcaneal tuberosity insertion: 1st toe medial plantar nerve action: flexion and abduction of 1st MTP joint |
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subclavius |
1st rib insertion: clavicle action: steadies the clavicle in the sternoclavicular joint |
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serratus anterior |
1st to 9th ribs insertion: scapula inn: long thoracic nerve action: lowers raised arm, draws scapula laterally forward, elevates ribs, rotates scapula laterally |
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erector spinae |
dorsal mm from pelvis to neck innervated by dorsal rami of spinal nerves two muscles columns in osteofibrous canal along vertebral column covered by thoracolumbar fascia function:postural muscles: fixation of erect position of head, body, movement of head, extension and rotation lateral superficial tract: long mm from pelvis to skull intertransverse mm: iliocostalis cervicis,thoracis,lumborum longissimus thoracis,cervicis, capitis transversospinal muscles: splenius cervicis, capitis mm levatores costarum medial deep tract: straight muscles:interspinales, intertransversarii, spinals oblique:rotatoires brèves et longi,multifidi mm, semispinales mm
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rectus abdominis |
5-7th rib , xiphoid process insertion:pubic tubercle and symphysis inn:intercostal nerves action:help in respiration, flexion of vertebral column,abdominal pressure |
