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Anatomy > Muscles of the Arm > Flashcards

Muscles of the Arm Flashcards

1
Q

Maximus

A

Largest

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2
Q

Flexor Digitorum Superficialis OIA

A

O: medial epicondyle of the humerus, ulna, radius
I: middle phalanges of the four fingers
A: flexes digits

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3
Q

Rotator cuff (Picture)

A
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4
Q

Supinator OIA

A

O: humerus, ulna
I: radius
A: supinates the forearm

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5
Q

Insertion

A

Attachment point of the muscle that moves during contraction

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6
Q

Fixator

A

Prevents movement of bone that the prime mover is attached to

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7
Q

Synergist

A

Aids the prime mover
Stabilizes the nearby joint
Modifies the direction of movement that occurs

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8
Q

Origin

A

Attachment point of the muscle that does not move during contraction

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9
Q

Extensor Digitorum OIA

A

O: lateral epicondyle

I: middle and distal phalanges of the 2-5th fingers

A: extends hand, wrist and fingers

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10
Q

Biceps Brachii OIA

A

O: short head: coracoid process of the scapula. long head: supraglenoid tubercle
I: radial tuberosity
A: flexes elbow and supinates forearm

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11
Q

Antagonist

A

Opposes the prime mover
Preventing excessive movement and injury

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12
Q

Extrinsic

A

muscles move the fingers but are found outside the hand

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13
Q

Rotator Cuff includes? function?

A

Supraspinatus
Infraspinatus
Teres Minor
Subscapularis

Holds the humerus within the glenoid cavity

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14
Q

Trapezius OIA

A

O: external occipital protuberance, spinous processes of vertebrae C7-T12

I: clavicle, acromion process, and spine of scapula

A: rotation, retraction, elevation, and depression of scapula

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15
Q

Mneumonic Device for upper arm

A

Biceps brachii: Short walk to the corner, long ride on the superhighway:

Short head originates at the coracoid; long head from the supraglenoid cavity

Muscles that flex the forearm, the (Three B’s that Bend the elBow) Brachialis, Biceps, Brachioradialis

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16
Q

Triceps Brachii

A

O: infraglenoid tubercle of scapula, humerus
I: olecranon process of ulna
A: extend forearm; adduct shoulder

17
Q

Opponens Pollicis OIA

A

O: trapezium, carpal ligament

I: metacarpal bone of the thumb

A: opposes thumb

18
Q

Prime mover

A

produces the most force

19
Q

Trapezius

A

Trapezoidal

20
Q

Fascia

A

Outer muscle wrapping

21
Q

Pronator Teres OIA

A

O: medial epicondyle of humerus ulnar head: coronoid process of ulna
I: radius
A: pronation of forearm, flexes elbow

22
Q

Pectoralis Major OIA

A

O: clavicle, sternum, costal cartilages, and the aponeurosis of the external oblique
I: intertubercular groove of the humerus
A: adducts and medially rotates the humerus. draws the scapula anteriorly and inferiorly.

23
Q

Palmaris Longus OIA

A

O: medial epicondyle of the humerus
I: palmar aponeurosis
A: flexes the wrist

24
Q

Latissimus Dorsi OIA

A

O: T7-L5, iliac crest and inferior 3 or 4 ribs, inferior angle of scapula
I: intertubercular groove of the humerus
A: adducts, extends and internally rotates the arm

25
Q

Intrinsic

A

muscles are contained within a region, such as the hand

26
Q

Levator

A

elevates a body part

27
Q

Digiti

A

of a digit

28
Q

Muscles of the the Anterior forearm

A

Flex/extend wrist and fingers, adduct/abduct wrist
Digitorum = inserts into digits
Carpi = inserts onto carpal bones
Pollicis = inserts into thumb
Radialis = crossing over radius
Ulnaris = crossing over ulna

29
Q

Aponeurosis

A

A broad, flat tendon
It may or may NOT have a bony attachment
Top of skull, palm, rectus abdominus

30
Q

Retinaculum

A

Anchor tendons

31
Q

Quadriceps

A

having four heads

32
Q

Deltoid OIA

A

O: clavicle, acromion, spine of the scapula
I: deltoid tuberosity of humerus
A: shoulder abduction, flexion and extension

33
Q

Profundus

A

deepest

Anatomy (7 decks)

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