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BMS271 Upper Limb Anatomy > Forearm and Wrist > Flashcards

Forearm and Wrist Flashcards

Learn Attachments, Action, Innervation

1
Q

Pronator Teres

Attachments Action, Innervation

A
  • Humeral Head: Superior Medial Epicondyle
  • Ulnar Head: Coronoid Process
  • Middle part, Lateral Surface Radius

Action: Pronation + Weak Flexion Forearm

Nerve Supply: Median Nerve (C6,C7)

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2
Q

Flexor Carpi Radialis

Attachments, Action, Innervation

A
  • Medial Epicondyle of Humerus
  • Base of 2nd Metacarpal

Action: Flex + Abduct Hand at Wrist

Nerve Supply: Median Nerve (C6, C7)

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3
Q

Palmaris Longus

Attachments, Action, Innervation

A
  • Medial Epicondyle of Humerus
  • Flexor Retinaculum + Palmar Aponeurosis

Action: Flexes Hand at Wrist (Weakly) + Tenses Palmar Aponeurosis

Nerve Supply: Median Nerve (C7 and C8)

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4
Q

Flexor Carpi Ulnaris

Attachments, Action, Innervation

A
  • Humeral Head: Medial Epicondyle
  • Ulnar Head: Olecranon + Posterior Border Ulna
  • Pisiform + Hamate + 5th Metacarpal

Action: Flex + Adduct Hand at Wrist

Nerve Supply: Ulnar Nerve (C7 and C8)

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5
Q

Flexor Digitorum Superficialis

Attachments, Action, Innervation

A
  • Humeroulnar Head: Medial Epicondyle of Humerus + Coronoid Process
  • Radial Head: Superior 1/2 Anterior Border Radius
  • Shafts middle Phalanges 2-5

Action: Flexes Middle and Proximal Phalanges 2-5

Nerve Supply: Median Nerve (C7,C8 and T1)

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6
Q

Flexor Digitorum Profundus

Attachments, Action, Innervation

A
  • Proximal 3/4 Anterior, Medial Aspect Ulna + Interosseous Membrane
  • Bases of Distal Phalanges of Digits 2-5

Action: Flex Distal Phalanges 2-5

Nerve Supply:

Medial 1/2: Ulnar Nerve (C8,T1)

Lateral 1/2: Median Nerve (C8,T1)

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7
Q

Flexor Pollicis Longus

Attachments, Action, Innervation

A
  • Anterior Surface Radius + Interosseous Membrane
  • Base 1st Distal Phalanx

Action: Flex Phalanges of Digit 1

Nerve Supply: Median Nerve (C8, T1)

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8
Q

Pronator Quadratus

Attachments, Action, Innervation

A
  • Distal 1/4 Anterior Surface Ulna
  • Distal 1/4 Anterior Surface Radius

Action: Pronation of Forearm

Nerve Supply: Median Nerve (C8,T1)

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9
Q

Brachioradialis

Attachments, Action, Innervation

A
  • Proximal 2/3 Lateral Supracondylar Ridge
  • Lateral, Distal Radius, Proximal to Styloid Process

Action: Flexion of Forearm at Elbow + Stabilize elbow

Nerve Supply: Radial Nerve (C5, C6, C7)

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10
Q

Extensor Carpi Radialis Longus

Attachments, Action, Innervation

A
  • Lateral Supracondylar Ridge
  • Base of 2nd Metacarpal

Action: Extension + Abduction Hand at Wrist

Nerve Supply: Radial Nerve (C6, C7)

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11
Q

Extensor Carpi Radialis Brevis

Attachments, Action, Innervation

A
  • Lateral Epicondyle
  • Base 3rd Metacarpal

Action: Extension + Abduction Hand at Wrist

Nerve Supply: Deep Branch Radial Nerve (C7,C8)

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12
Q

Extensor Digitorum

Attachments, Action, Innervation

A
  • Lateral Epicondyle of Humerus
  • Extensor Expansion of Digits 2-5

Action: Extension of Digits 2-5

Nerve Supply: Deep Branch Radial Nerve (C7,C8)

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13
Q

Extensor Digiti Minimi

Attachments, Action, Innervation

A
  • Lateral Epicondyle of Humerus
  • Extensor Expansion of Digit 5

Action: Extends Digit 5

Nerve Supply: Deep Branch Radial Nerve (C7, C8)

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14
Q

Extensor Carpi Ulnaris

Attachments, Action, Innervation

A
  • Lateral Epicondyle of Humerus + Posterior Border of Ulna
  • Base of 5th Metacarpal

Action: Extend + Adduct Hand at Wrist

Nerve Supply: Deep Branch of Radial Nerve (C7,C8)

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15
Q

Anconeus

Attachments, Action, Innervation

A
  • Lateral Epicondyle of Humerus
  • Lateral Surface Olecranon + Superior & Posterior Surface of Ulna

Action: Assist Extension of Forearm at Elbow

Nerve Supply: Radial Nerve (C7,C8,T1)

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16
Q

Supinator

Attachments, Action, Innervation

A
  • Lateral Epicondyle of Humerus, Radial Collateral Lig., Annular Lig., Supinator Fossa, Crest of Ulna
  • Lateral, Anterior & Posterior Surfaces of Proximal 3rd Radius

Action: Supination of Forearm

Nerve Supply: Deep Branch of Radial Nerve (C7,C8)

17
Q

Abductor Pollicis Longus

Attachments, Action, Innervation

A
  • Posterior Surfaces of Radius, Ulna & Interosseous Membrane
  • Base of 1st Metacarpal

Action: Abduct + Extend 1st Digit at Carpometacarpal Joint

Nerve Supply: Posterior Interosseous Nerve (C7,C8)

18
Q

Extensor Pollicis Brevis

Attachments, Action, Innervation

A
  • Posterior Surface of Radius + Interosseous Membrane
  • Base of 1st Proximal Phalanx

Action: Extension of 1st Proximal Phalanx

Nerve Supply: Posterior Interosseous Nerve (C7,C8)

19
Q

Extensor Pollicis Longus

Attachments, Action, Innervation

A
  • Posterior Surface of Ulnar & Interosseous Membrane
  • Base of 1st Distal Phalanx

Action: Extend Distal Phalanx 1st Digit + Extends 1st Proximal Phalanx & 1st Metacarpal

Nerve Supply: Posterior Interosseous Nerve (C7,C8)

20
Q

Extensor Indicis

Attachments, Action, Innervation

A
  • Posterior Surface of Ulna + Interosseous Membrane
  • Extensor Expansion of 2nd Digit

Action: Extend 2nd Digit + Assist extension of Hand at Wrist

Nerve Supply: Posterior Interosseous Nerve (C7 and C8)

BMS271 Upper Limb Anatomy (15 decks)

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