Flashcards
Muscles
Cards in this deck (18)
- 1Extensor Carpi Radialis LongusOrigin: Inferior one third of lateral
supracondylar ridge of humerus.
Insertion: Dorsal aspect of base of second
metacarpal bone.
Action: Extends hand at radiocarpal (wrist)
joint; abducts hand at radiocarpal and
midcarpal joints.
Innervation: Radial nerve (C6-C7). - 2Extensor Carpi Radialis BrevisOrigin: Lateral epicondyle of humerus, via
common extensor tendon.
Insertion: Dorsal aspect of base of third metacarpal bone.
Action: Extends hand at radiocarpal (wrist)
joint; abducts hand at radiocarpal and midcarpal joints.
Innervation: Deep branch of radial nerve
(C7-C8) and posterior antebrachial
interosseous nerve (C7-C8) - 3Extensor DigitorumOrigin: Lateral epicondyle of humerus, via
common extensor tendon.
Insertion: Dorsal aspects of bases of both
the middle and distal phalanges of the
index, middle, ring, and little fingers.
Action: Extends index, middle, ring, and little fingers.
Innervation: Posterior antebrachial
interosseous nerve (C7-C8) - 4Extensor Digiti MinimiOrigin: Lateral epicondyle of humerus, via
common extensor tendon.
Insertion: Extens. expansion of little finger.
Action: Extends little finger.
Innervation: Posterior antebrachial
interosseous nerve (C7-C8). - 5Extensor Carpi UlnarisOrigin: Lateral epicondyle of humerus, via
common extensor tendon, and posterior
border of ulna.
Insertion: Medial aspect of base of fifth
metacarpal bone.
Action: Extends and adducts hand at
radiocarpal (wrist) joint.
Innervation: Posterior antebrachial
interosseous nerve (C7-C8). - 6SupinatorOrigin: Lateral epicondyle of humerus,
supinator crest and fossa of ulna.
Insertion: Anterior, lateral, and posterior
aspects of proximal one third of radius.
Action: Supinates forearm at radioul joints.
Innervation: Posterior antebrachial
interosseous nerve (C6-C7). - 7Pronator TeresOrigin: Medial supracondylar ridge of
humerus, via common flexor tendon,
and medial coronoid process of ulna.
Insertion: Middle one third of anterolateral
aspect of radius.
Action: Pronates forearm at radioul joints.
Innervation: Median nerve (C6-C7). - 8Flexor Carpi RadialisOrigin: Medial epicondyle of humerus, via
common flexor tendon.
Insertion: Palmar aspects of bases of
second and third metacarpal bones.
Action: Flexes hand at radiocarpal (wrist)
joint; abducts hand at radiocarpal and
midcarpal joints.
Innervation: Median nerve (C6-C7). - 9Palmaris LongusOrigin: Medial epicondyle of humerus, via
common flexor tendon.
Insertion: Palmar aponeurosis and flexor
retinaculum of hand.
Action: Flexes hand at radiocarpal (wrist)
joint; stabilizes palmar aponeurosis.
Innervation: Median nerve (C7-C8). - 10Flexor Digitorum SuperficialisOrigin: Medial epicondyle of humerus, via
the common flexor tendon, sublime
tubercle of ulna, and proximal half of
anterior border of radius.
Insertion: Palmar aspects of the bodies of
middle phalanges of the index, middle,
ring, and little fingers.
Action: Flexes index, middle, ring, pinky
Innervation: Median nerve (C7-T1). - 11Flexor Carpi UlnarisOrigin: Medial epicondyle of humerus, via
common flexor tendon, body of ulna, and olecranon of ulna.
Insertion: Pisiform, hook of hamate, palmar aspect of base of 5th metac. bone.
Action: Flexes and adducts hand at
radiocarpal (wrist) joint.
Innervation: Ulnar nerve (C7-T1). - 12Flexor Digitorum ProfundisOrigin: Medial aspect of coronoid process
of ulna and superior anterior and medial surfaces of body of ulna.
Insertion: Palmar aspects of bases of the
distal phalanges of index, middle, ring, and little fingers.
Action: Flexes index, middle, ring, and little
Innervation: Medial part: ulnar nerve C8
T1); Lateral part: anterior interosseous
branch of median nerve (C8-T1). - 13Flexor Pollicis LongusOrigin: Anterior surface of radius and
adjacent interosseous membrane of forearm.
Insertion: Palmar aspect of base of distal
phalanx of thumb.
Action: Flexes thumb.
Innervation: Anterior antebrachial
interosseous nerve (C7-T1). - 14Pronator QuadratusOrigin: Anterior aspect of distal one quarter of ulna
.
Insertion: Anterior aspect of distal one
quarter of radius.
Action: Pronates forearm at radioulnar joints.
Innervation: Anterior antebrachial
interosseous nerve (C7-C8). - 15Abductor Pollicis LongusOrigin: Posterior aspects of proximal half of
ulna and middle one third of radius,
interosseous membrane of forearm.
Insertion: Lateral aspect of base of first
metacarpal bone.
Action: Abducts and extends thumb at first
carpometacarpal joint.
Innervation: Posterior antebrachial
interosseous nerve (C7-C8) - 16Extensor Pollicis BrevisOrigin: Posterior surface of distal half of
radius and adjacent interosseous
membrane of forearm.
Insertion: Dorsal aspect of base of proximal phalanx of thumb.
Action: Extends thumb.
Innervation: Posterior antebrachial
interosseous nerve (C7-C8) - 17Extensor Pollicis LongusOrigin: Posterior surface of middle one
third of ulna and adjacent interosseous
membrane of forearm.
Insertion: Dorsal aspect of base of distal phalanx of thumb.
Action: Extends thumb.
Innervation: Posterior antebrachial
interosseous nerve (C7-C8) - 18Extensor IndicesOrigin: Posterior surface of distal one third
of ulna and adjacent interosseous
membrane of forearm.
Insertion: Extens expansion of index finger.
Action: Extends index finger.
Innervation: Posterior antebrachial
interosseous nerve (C7-C8).
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- Bachelor Degree Advanced Functional Anatomy (Elbow/Forearm/Wrist) Flashcards on Muscles, created by Grace Gee on 08/03/2022.
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- Grace Gee
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