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IPAP A&P 1 Chance > Origin, Insertion, Action, Innervation > Flashcards

Origin, Insertion, Action, Innervation Flashcards

1
Q

Pectoralis Major

A

Origin: Clavicle, Sternum, Costal Cartilages: 2-5, 2-6, or 1-7
Insertion: Intertubercular Sulcus (Groove) of Humerus
Action: Adducts, medially rotates humerous at shoulder joint
Innervation: Lateral/Medial Pectoral Nerves
Arterial Supply: Pectoral banch of the thoracoacromial artery

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2
Q

Pectoralis Minor

A 
Origin: 2-5, 3-5, 2-4 Ribs
Insertion: Coracoid process of scapula
Action: adducts (protracts scapula and rotates downward, elevates ribs during forced inhalation
Innervation: medial pectoral nerve 
Arterial Supply: Lateral thoracic artery
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3
Q

Serratus Anterior

A

Origin: Superior 8-9 Ribs
Insertion: Vertebral border/inferior angle of scapula
Action: adducts scapula and rotates it upward, elevates ribs when scapula is fixed
Innervation: Long thoracic Nerve
Arterial Supply: Lateral thoracic Artery

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4
Q

Subclavius Muscle

A

Origin: First Rib
Insertion: Clavicle
Action: Depresses clavicle, moves it anteriorly, stabilizes girdle
Innervation: Subclavian Nerve
Arterial Supply: Clavicular branch of the thoracoacromial artery

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5
Q

Trapezius

A

Origin:External occipital protuberance, superior nuchal line, nuchal ligament, spinous processes of C7-T12
Insertion: Clavicle, acromion and spine of scapula
Action: Elevate, adduct (retract), Depress scapula
Innervation: Accessory Nerve (CN XI)
Arterial Supply: Transverse cervical artery (Supplies upper 2/3) Dorsal scapular artery (1/3)

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6
Q

Latissimus Dorsi

A

Origin: Spinous process of inferior 6T vertebre, (T7-L5) crests of sacrum and illium
Insertion: Intertubercular Sulcus
Action: Extends, adducts, medially rotates humerous at shoulder joint/ dras arm inferiorly and posteriorly/raises body toward arms during climbing
Innervation: thoracodorsal nerve
Arterial Supply: thoracodorsal artery

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7
Q

Levator Scapulae

A 
Origin: Superior 4/5 cervical vertebrae
Insertion: Superior Vertebral border of scapula 
Action: Elevates Scapula
Innervation: Dorsal Scapular nerve 
Arterial Supply: Dorsal scapular artery
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8
Q

Rhomboid Major

A

Origin: Spinous process of thoracic vertebrae
Insertion: medial vertebral border of scapula inferior to the scapular spine
Action: Elevates,addicts scapula, stabilizes scapula
Innervation: Dorsal Scapular nerve
Arterial Supply: Dorsal Scapular Artery

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9
Q

Rhomboid Minor

A

Origin: Spinous Processes of C7 and T1 vertebrae
Insertion: Medial border of scapula superior to scapula spine
Action: Elevates, retracts scapula, stabilizes scapula
Innervation:Dorsal Scapular nerve
Arterial Supply: Dorsal Scapular Artery

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10
Q

Deltoid

A

Origin: Acromial Extremity, Acromion and spine of scapula
Insertion: Deltoid Tubersoity
Action: Abducts arm, medially rotate, extend and laterally rotate arm
Innervation: Axillary Nerve

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11
Q

Supraspinatus

A

Origin: Supraspinous Fossa of scapula
Insertion: Greater Tubercle
Action: assist deltoid in initial abduct
Innervation: ssprascapular nerve

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12
Q

Infraspinatus

A

Origin: Infraspinous fossa
Insertion: Greater tubercule
Action: Laterally rotates arm
Innervation: Suprascapular nerve

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13
Q

Teres Minor

A

Origin: Middle Lateral border of scapula
Insertion: Greater Tubercle
Action: Laterally rotates, adducts arm
Innervation: Axillary nerve

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14
Q

Teres Major

A

Origin: Inferior lateral border of scapula
Insertion: Intertubercular sulcus
Action: adducts, medially rotates, extends arm (dorsally)
Innervation: Lower subscapular nerve

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15
Q

Subscapularis

A

Origin: Subscapular fossa
Insertion: Lesser Tubercle
Action: MEdially Rotates
Innervation: upper/lower subscapular nerve

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16
Q

Biceps Brachii

A

Origin:
Supraglenoid tubercle
Coracoid process
Insertion: Tuberosity of radius/bicipital aponeuronsis
Action: flexes at elbow, powerful supinator, flexes arm
Innervation: Musculocutaneous

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17
Q

Brachialis

A

Origin: Humerous
Insertion: Ulnar Tuberosity/Coronoid process
Action: Flexes forearm
Innervation: Musculocutanerous

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18
Q

Coracobrachialis

A

Origin: coracoid process
Insertion: shaft of humerus
Action: flexes, adducts
Innervation: musculotaneous

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19
Q

Triceps Brachii

A

Origin: infraglenoid, humerous, (superior, inferior of radial groove)
Insertion: olecranon of ulna
Action: Extends forearm, extends arm
Innervation: Radial

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20
Q

Anconeus

A

Origin: Lateral Epicondyle
Insertion: olecranon
Action: Extends forarm, assist tri
Innervation: radial nerve

21
Q

Flexor Carpi Radialis

A

Origin: Medial Epicondyle
Insertion: radial anterior of hand, 2-3 meta carpals
Action: flexes and abducts hand at wrist
Innervation: median nerve

22
Q

Palmaris Longus

A

Origin: medial epicondyle
Insertion: Flexor retinaculum
Action: flexes hand at wrist, tightens palmar aponeurosis
Innervation: median nerve

23
Q

Flexor Carpi Ulnaris

A

Origin: Medial epicondyle, olecranon (posterior border of ulna)
Insertion: Ulnar anterior hand carpals
Action: flexes, adducts hand at wrist
Innervation: ulnar artery

24
Q

Flexor Digitorum Superficialis

A

Origin: Medial Epicondyle
Insertion: Anterior surface of middle ph, 2-5
Action: flexes fingers, flexes hand at wrist
Innervation: Median Nerve

25
Q

Flexor Pollicis Longus

A

Origin: Radus/Interosseus membrane
Insertion: Distal Phalanx of thumb
Action: Flexes distal/phalanx of thumb
Innervation: median nerve

26
Q

Flecor Digitorum Profundus

A

Origin: Ulnar/Interossous
Insertion: Anterior Surface/distal 2-5
Action: flexes fingers at distal phalanges, assist with hand flexion
Innervation:median/ulnar nerve

27
Q

Brachioradialis

A

Origin: Humerus (near stylpid)
Insertion: radius
Action: pronate/supinate, flexes forearm
Innervation: radial nerve

28
Q

Extensor Carpi Radialis Longus

A

Origin: distal humerus
Insertion: radial posterior
Action: extends/abducts hand at wrist
Innervation: radial nerve

29
Q

Extensor Carpi Radialis Brevis

A

Origin: lateraly epicondyle
Insertion: radial posterior of hand, base of 3rd meta
Action: extends abducts hand
Innervation: deep radial nerve

30
Q

Extensor Digitorum

A

Origin: lateral epicondyle
Insertion: digits 2-5, phal.
Action: extends digits2-5
Innervation: deep radial nerve

31
Q

Extensor Digiti Minimi

A

Origin: lateral epicondyle
Insertion: phalanx of little finger
Action: extends the 5th digit
Innervation: deep radial

32
Q

Extensor Carpi Ulnaris

A

Origin: Lateral epicondyle
Insertion: Ulnar posterior hand, base of 5th meta
Action: extends/adducts hand
Innervation: deep radial nerve

33
Q

Abductor Pollicis Longus

A

Origin: posterior radus/ulna
Insertion: base of thumb, 1st meta
Action: abducts and extends thumb
Innervation: deep radial nerve

34
Q

Extensor Pollicis Brevis

A

Origin: posterior radius
Insertion: proximal phalnx of thumb
Action: extends thumb
Innervation:deep radial nerve

35
Q

Extensor Pollicis Longus

A

Origin: Posterior ulna
Insertion: distal phalanx of thumb
Action: extends thumb
Innervation: deep radial nerve

36
Q

Extensor Indicis

A

Origin: Ulna
Insertion: Index finger
Action: extends second digit
Innervation: deep radial

37
Q

Pronator Teres

A

Origin: medial epicondyle
Insertion: radius
Action: pronates forearm
Innervation: median nerve

38
Q

Pronator Quadratus

A

Origin: ulna
Insertion: radius
Action: pronates forearm
Innervation: median nerve

39
Q

Supinator

A

Origin: humerous (lateral) Insertion: Proximal radius
Action: supinates forearm
Innervation: deep radial nerve

40
Q

Abductor Pollicis Brevis

A

Origin: flexor retinaculum, scaphoid, trapezium
Insertion: lateral side of thumb phalanx
Action: abducts thumb
Innervation:median nerve

41
Q

Opponens Pollicis

A

Origin: flexor retinaculum, scaphoid, trapezium
Insertion: lateral 1st meta
Action: 1st meta medially to oppose little finger at palm
Innervation: median nerve

42
Q

Flexor Pollicis Brevis

A

Origin: flexor retinaculum, scaphoid, trapezium
Insertion: lateral side of thumb phalanx
Action: flexes thumb
Innervation: median/ulnar nerves

43
Q

Adductor Pollicis

A

Origin: anterior 2nd/3rd metacarpal,
Insertion: medial side of thumb phalanx
Action: draws thumb toward palm (adducts thumb)
Innervation: Ulnar nerve

44
Q

Abductor Digiti Minimi

A

Origin: pisiform
Insertion: medial side of proximal little finger
Action: abducts 5th finger
Innervation: ulnar nerve

45
Q

Flexor Digiti Minimi Brevis

A

Origin: flexor retinaculum/hook of hamate
Insertion: medial side of little finger
Action: flexes 5th finger
Innervation: ulnar nerve

46
Q

Oppoens Digiti Minimi

A

Origin: flexor retinaculum and hamate
Insertion: medial 5th metacarpal
Action: draws 5th anteriorly
Innervation: ulnar nerve

47
Q

Palmar Interossei

A

Origin: palmar surfaces of metacarpals
Insertion: 2,4,5 digits
Action: adducts and flexes fingers
Innervation: ulnar nerve

48
Q

Dorsal Interossei

A

Origin: adjacent sides of two metacarpals
Insertion:
Action: abducts digits/extend fingers
Innervation: ulnar

IPAP A&P 1 Chance (6 decks)

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