class # 12. forearm and hand forearm muscles hand muscles and bones

Download Class # 12. Forearm and Hand Forearm muscles Hand muscles and bones

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  • Slide 1
  • Class # 12
  • Slide 2
  • Forearm and Hand Forearm muscles Hand muscles and bones
  • Slide 3
  • Hand Bones Page 8 bones book Proximal Row of Carpels: (starting thumb side, right to left, ant. surf.) 1. Scaphoid 2. Lunate 3. Triquetrum 4. Pisiform
  • Slide 4
  • Hand Bones Distal Row (right to left on anterior surface, starting on thumb side) 5. Trapezium 6. Trapezoid 7. Capitate 8. Hamate (hook on ant. Surface)
  • Slide 5
  • Hand bones: Proximal row= Some Lovers Try Positions Distal row= That They Cant Handle (right to left, anterior surface) -Metacarpals -Phalanges
  • Slide 6
  • Forearm muscles: Flexors of the arm at the elbow joint: -Biceps Brachii -Brachialis -Brachioradialis O: Lat. Supracondylar ridge of humerus I: Styloid process of radius A: Flexion of arm at elbow joint
  • Slide 7
  • Forearm muscles Pronation of Forearm: (page 29) Pronator Teres and Pronator Quadratus Pronator Teres O: Medial epicondyle of humerus & coronoid process of ulna I: Middle of lateral shaft of radius A: Pronation of forearm
  • Slide 8
  • Forearm muscles: Pronator Quadratus O: Distal fourth of ant. Ulna I: Distal fourth of ant. Radius A: Pronates forearm
  • Slide 9
  • Forearm muscles Supination of Forearm: Supinator p.30 O: Lat. Epicondyle of humerus & Proximal ulna at supinator crest I: Lat. Surface of proximal 1/3 of radius A: Supination of forearm
  • Slide 10
  • Forearm muscles Flexion of the wrist: - Flexor Carpi Radialis - Flexor Carpi Ulnaris - Palmaris Longus (freq. Absent)
  • Slide 11
  • Flexors of the wrist Flexor Carpi Radialis (p.36) O: Medial epicondyle of humerus I: Bases of 2 nd and 3 rd metacarpals A: Flexion of wrist Radial deviation
  • Slide 12
  • Flexors of the wrist Flexor Carpi Ulnaris: (p.34) O: Medial epicondyle of humerus Proximal post ulna and olecranon process I: Pisiform, Hamate and base of 5 th metacarp. A: Flexion of wrist Ulnar deviation
  • Slide 13
  • Flexors of the wrist Palmaris Longus (p.35) Because it is often absent we will not be covering it.
  • Slide 14
  • Extensors of the wrist Extensor Carpi Radialis Longus Extensor Carpi Radialis Brevis Extensor Carpi Ulnaris Nerve: Radial
  • Slide 15
  • Ext. of the wrist Ext. Carpi Radialis Longus: (p.31) O: Lat. Epicondyle of humerus I: base of 2 nd metacarpal A: Ext. of wrist Radial deviation
  • Slide 16
  • Ext. of the wrist Ext. Carpi Radialis Brevis: (p.32) O: Lat epicondyle of humerus I: Base of 3 rd metacarpal A: Ext. of the wrist
  • Slide 17
  • Ext. of the wrist Ext. Carpi Ulnaris: (p. 33) O: Lat. Epicondyle of humerus Post. Proximal ulna I: base of 5 th metacarpal A: Ext. of the wrist Ulnar deviation
  • Slide 18
  • Extension of the Digits Extensor Digitorum p 37 Extensor Digiti Minimi p.38 Extensor Indicis p.39 Radial Nerve
  • Slide 19
  • Extension of the Digits Extensor Digitorum p.37 O: Lat. Epicondyle of humerus I: Extensor expansion of 4 fingers A: Ext. of proximal phalanges of 4 fingers at MP joints
  • Slide 20
  • Extension of the Digits Extensor Digiti Minimi O: Lat. Epicondyle of humerus I: Extensor expansion of little finger A: Ext. of proximal phalanx of little finger at the MP joint
  • Slide 21
  • Extension of the Digits Extensor Indicis O: Posterior ulna and interosseous membrane I: Extensor expansion of indicis finger A: Ext. of proximal phalanx of index finger at MP joint
  • Slide 22
  • Flexion of the Digits Flexor Digitorum Superficialis p. 40 Flexor Digitorum Profundus p. 41 Profundus is deep to the Superficialis Muscles
  • Slide 23
  • Flexion of the Digits Flexor Digitorum Superficialis O: Medial epicondyle of humerus Coronoid process of ulna Ant oblique line of radius I: Sides of the shafts of middle phalanges of 4 fingers at PIP joint
  • Slide 24
  • Flexion of the Digits Flexor Digitorum Profundus O: Middle of ant. Ulna and interosseous membrane I: Bases of distal phalanges of 4 fingers A: Flexion of distal phalanges of 4 fingers at DIP joints
  • Slide 25
  • Flexion & Extension of Thumb Flexor Pollicis Longus O: Middle of ant. Radius interosseous membrane I: Distal Phalanx of thumb A: Flexion of distal phalanx of thumb at IP joint
  • Slide 26
  • Extension of Thumb Extensor Pollicis Longus O: Posterior ulna and interosseous membrane middle 1/3 I: base of distal phalanx of thumb A: Ext. of distal phalanx of thumb at IP joint
  • Slide 27
  • Extension of Thumb Extensor Pollicis Brevis O: Posterior radius interosseous membrane I: base of proximal phalanx of thumb A: Ext. of proximal phalanx of thumb at MP joint
  • Slide 28
  • Abduction of Thumb Abductor Pollicis Longus p.45 O: Posterior radius Posterior ulna Interosseous membrane I: base of 1 st metacarpal A: Abduction of 1 st metacarpal of thumb at CM joint
  • Slide 29
  • Intrinsic Thumb Muscles Flexor pollicis brevis Abductor pollicis brevis Opponens pollicis -All form the Thenar eminence- Adductor Pollicis -forms the web space of the thumb(ant.surface)
  • Slide 30
  • Intrinsic Hand Muscles Flexor Digiti Minimi p. 50 Opponens Digiti Minimi p. 51 Abductor Digiti Minimi p. 52 -All forms the Hypothenar Eminence Nerve: Ulnar
  • Slide 31
  • Intrinsic Hand Muscles Dorsal Interossei p.53 A: ABduct the fingersN: Ulnar -DAB Palmer Interossei p.54 A: ADduct the fingersN: Ulnar -PAD Lumbricals (4) A: Flexion fingers at MP Joints Ext. of fingers at PIP and DIP joints
  • Slide 32
  • Anatomical Snuff Box

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