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AIM 2.1 > forearm/hand > Flashcards

forearm/hand Flashcards

1
Q

pronator teres

A

O: Ulnar Head: Coronoid Process (Ulna) // Humeral Head: Common Flexor Tendon (Medial Epicondyle, humeru)
I: Radius (Superior Lateral Surface)
Blood: Ulnar Artery, Anterior Ulnar Recurrent Artery
N: Median Nerve
(pierces thru m.)
Action: Pronation of forearm
Elbow Flexion

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2
Q

Flexor Carpi Radialis

A 
O: Common Flexor Tendon 
(Medial Epicondyle)
I: 2nd & 3rd metacarpals 	
Blood: Ulnar Artery
N: Median Nerve
Action: Wrist Flexion [Wrist Abduction]
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3
Q

Flexor Palmaris Longus

A 
O: Common Flexor Tendon 
(Medial Epicondyle)
I: Flexor Retinaculum, 
Palmar Aponeurosis
Blood: Ulnar Artery 
N: Median Nerve
Action: Wrist Flexion
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4
Q

Flexor Carpi Ulnaris

A

O: Humeral Head: Common Flexor Tendon (Medial Epicondyle) // Ulnar Head: Olecranon, 5th metacarpal, Pisiform, Hook of Hamate
Blood: Ulnar Artery
N: Ulnar Nerve
Action: Wrist Flexion [Wrist Adduction]

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5
Q

Flexor Digitorum Superficialis

A

O: Humeroulnar Head: Common Flexor Tendon (Medial Epicondyle of humerus) // Radial Head: Radius (Anterior-superior border)
I: Middle Phalanges (2-4)
(Index, Middle, Ring, Little Fingers)
Blood: Ulnar Artery
N: Median Nerve
Action: Flexes digits 2-4 at PIP joints, [Flexion of MP joints]

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6
Q

Flexor Digitorum Profundus

A

O: Ulna (Proximal ¾ of anterior-medial surface), Interosseous Membrane
I: Medial Part: Distal
Phalanges 4-5 // Lateral Part: Distal Phalanges 2-3
Blood: Ulnar Artery,
Anterior Interosseous Artery (Branch of Common Interosseous a. from Ulnar Artery)
N: Medial half, digits 4&5: Ulnar Nerve // Lateral Half, digits 2&3: Anterior Interosseous Nerve (Branch of Median Nerve)
Action: Flexion of DIP joints

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7
Q

Flexor Pollicis Longus

A

O: Radius (Anterior surface)
I: Distal Phalanx of Thumb, Palmar Aponeurosis
Blood: Anterior Interosseous Artery (Branch of Common Interosseous a. from Ulnar Artery)
N: Anterior Interosseous Nerve (Branch of Median Nerve)
Action: Flexion of Thumb Interphalangeal Joint

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8
Q

Pronator Quadratus

A

O: Ulna (Distal anterior surface)
I: Radius (Distal anterior surface)
Blood: Anterior Interosseous Artery (Branch of Common Interosseous a. from Ulnar Artery)
N: Anterior Interosseous Nerve (Branch of Median Nerve)
Action: Pronation of forearm

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9
Q

Brachioradialis

A

O: Lateral Supraepicondylar Ridge (Humerus)
I: Radius (Distal Lateral Surface)
Blood: Radial Recurrent Artery
N: Radial Nerve
Action: Elbow Flexion
*Exception to rule: Only flexor innervated by Radial n.

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10
Q

Extensor Carpi Radialis Longus

A 
O: Lateral Supraepicondylar Ridge (Humerus) 
I: 2nd Metacarpal (Dorsal aspect)
Blood: Radial Artery 
N: Radial Nerve 
Action: Wrist Extension 
[Wrist Abduction]
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11
Q

Extensor Carpi Radialis Brevis

A

O: Common Extensor Tendon (Lateral Epicondyle)
I: 3rd Metacarpal (Dorsal aspect)
Blood: Radial Artery
N: Deep Radial Nerve
Action: Wrist Extension, [Wrist Abduction]

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12
Q

Extensor Digitorum (Communis)

A

O: Common Extensor Tendon (Lateral Epicondyle) (distal phalanges of digits 2-5)
I: Extensor Expansion
Blood: Interosseous Recurrent Artery, Posterior Interosseous Artery (Branches of Common Interosseous a. from Ulnar Artery)
N: Deep Radial Nerve
Action: Extends 2nd-5th digits at MP, PIP and DIP joints

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13
Q

Extensor Digiti Minimi

A

O: Common Extensor Tendon (Lateral Epicondyle)
I: Extensor Expansion (Little Finger)
Blood: Interosseous Recurrent Artery (Branch of Common Interosseous a. from Ulnar Artery)
N: Deep Radial Nerve
Action: Extends 5th digit [Extension of MP Joint, Extension of IP Joints (Weak)]

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14
Q

Extensor Carpi Ulnaris

A 
O: Common Extensor Tendon (Lateral Epicondyle), Ulna (Posterior Border)
I: 5th Metacarpal (Dorsal aspect)
Blood: Ulnar Artery
N: Deep Radial Nerve
Action: Wrist Extension, Wrist Adduction
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15
Q

Supinator

A

O: Lateral Epicondyle (Humerus), Ulna (Crest)
[Radial Collateral Lig., Annular Ligament]
I: Radius (upper shaft, Proximal lateral, anterior and posterior surfaces) Blood: Recurrent Interosseous Artery (Branch of Common Interosseous a. from Ulnar Artery)
N: Deep Radial Nerve *Nerve passes through supinator to become posterior interosseous nerve
Action: Supinates forearm

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16
Q

Extensor Indicis

A

O: Ulna (Distal Posterior surface), Interosseous Membrane
I: Extensor Expansion
(Index Finger)
Blood: Posterior Interosseous Artery
(Branch of Common Interosseous a. from Ulnar Artery)
N: Posterior Interosseous Nerve (Continuation of Deep Radial Nerve)
Action: Index Finger Extension

17
Q

Abductor Pollicis Longus

A

O: Ulna + Radius (Proximal Posterior surface), Interosseous Membrane
I: Base of 1st Metacarpal
Blood: Posterior Interosseous Artery (Branch of Common Interosseous a. from Ulnar Artery)
N: Posterior Interosseous Nerve (Continuation of Deep Radial Nerve)
Action: Thumb Abduction [Carpometacarpal joint extension (Thumb)]

18
Q

Extensor Pollicis Longus

A

O: Ulna (Middle Posterior Surface), Interosseous Membrane
I: Thumb Distal Phalanx (Dorsal Aspect)
Blood: Posterior Interosseous Artery (Branch of Common Interosseous a. from Ulnar Artery)
N: Posterior Interosseous Nerve (Continuation of Deep Radial Nerve)
Action: Extends distal phalanx of thumb
Extension of MP/CM Joints (Thumb)

19
Q

Extensor Pollicis Brevis

A

O: Ulna (Distal Posterior Surface), Interosseous Membrane
I: Thumb Proximal Phalanx
(Dorsal Aspect)
Blood: Posterior Interosseous Artery (Branch of Common Interosseous a. from Ulnar Artery)
N: Posterior Interosseous Nerve (Continuation of Deep Radial Nerve)
Action: Extends proximal phalanx of thumb at MP Joint (Thumb)

20
Q

Opponens Pollicis

A

Thenar

O: Scaphoid, Trapezium
I: Thumb Metacarpal (Lateral Side), Broad insertion
Blood: Superficial Palmar Branch of Radial Artery
N: Recurrent Branch of Median Nerve
Action: Thumb Opposition

21
Q

Abductor Pollicis Brevis

A

Thenar

O: Scaphoid, Trapezium 
I: Thumb Proximal Phalanx 
(Lateral Side) 
Blood: Superficial Palmar Branch of Radial Artery
N: Recurrent Branch of Median Nerve 
Action: Thumb Abduction
22
Q

Flexor Pollicis Brevis

A

Thenar

O: Scaphoid, Trapezium
I: Thumb Proximal Phalanx
(Lateral Side)
Blood: Superficial Palmar Branch of Radial Artery
N: Superficial Head: Recurrent Branch of Median Nerve // Deep Head: Deep Branch of Ulnar Nerve
Action: Thumb Flexion

23
Q

Adductor Pollicis

A

O: Oblique Head: Metacarpals 2-3
Capitate // Transverse Head: 3rd Metacarpal (Anterior surface)
I: Thumb Proximal Phalanx
(Medial Side)
Blood: Deep Palmar Arterial Arch (from Radial Artery, with Ulnar Artery via Deep Palmar Branch)
N: Deep Branch of Ulnar Nerve Thumb
Action: Adduction

24
Q

Abductor Digiti Minimi

A 
O: Pisiform
I: Little Finger Proximal Phalanx (Medial Side)
Blood: Ulnar Artery 
N: Deep Branch of Ulnar Nerve 
Action: Pinky Abduction
25
Q

Flexor Digiti Minimi Brevis

A 
O: Hook of Hamate
I: Little Finger Proximal Phalanx (Medial Side) 
Blood: Ulnar Artery 
Nerve: deep branch ulnar nerve
Action: Pinky PIP Flexion
26
Q

Opponens Digiti Minimi

A 
O: Hook of Hamate
I: Little Finger Metacarpal  
(Medial Side) 
N: deep branch ulnar nerve
Blood: Ulnar Artery 		
Action: Pinky Opposition
27
Q

Lumbricals

A

O: 1st + 2nd: Lateral 2 tendons of Flexor Digitorum Profundus // 3rd + 4th: Medial 3 tendons of Flexor Digitorum Profundus
I: Extensor Expansions of 2nd-5th digits (Lateral Sides)
Blood: Superficial Palmar Arterial Arch of Ulnar Artery
N: 1st + 2nd: Median Nerve
// 3rd + 4th: Deep Branch of Ulnar Nerve
Action: MCP Joint Flexion,
DIP (PIP) extension

28
Q

Dorsal Interossei 1-4

A

O: 1st to 5th paired metacarpals (Dorsal Side) I: Bases of Proximal Phalanges, Extensor Expansions of 2nd-5th digits
Blood: Dorsal Metacarpal Arteries, Palmar Metacarpal Arteries
N: Deep Branch of Ulnar Nerve
Action: PAD: Palmar ADduction (Adduct digits)

29
Q

Palmar Interossei 1-3

A

O: Between 2nd, 4th, 5th Metacarpals (Palmar Side)
I: Bases of Proximal Phalanges, Extensor Expansions of 2nd, 4th, 5th digits
Blood: Palmar Metacarpal Arteries
N: Deep Branch of Ulnar Nerve
Action: PAD: Palmar ADduction (Adduct digits)

AIM 2.1 (23 decks)

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