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CADE > Cubital Fossa and Forearm > Flashcards

Cubital Fossa and Forearm Flashcards

1
Q

What is the shallow depression anterior to the elbow joint called?

A

Cubital Fossa

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2
Q

What are the boundaries of the cubital fossa?

(medial, lateral, superior, floor, and roof)

A

Medial: Pronator teres o

Lateral: Brachioradialis o

Superior: Line connecting medial and lateral humeral epicondyles o

Floor: Brachialis and supinator muscles o

Roof: Bicipital aponeurosis (fascial extension of biceps brachii)

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3
Q

What runs over the bicipital aponeurosis?

A

Median cubital vein crosses it superficially

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4
Q

What are the contents of the cubital fossa? (11)

A
  • Biceps brachii tendon
  • Brachial artery and vein
  • Proximal radial and ulnar arteries and veins
  • Median and radial nerves
  • Bicipital aponeurosis
  • Median cubital vein crosses the bicipital aponeurosis superficially
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5
Q

Label 1-18

A
  1. Bracial fascia
  2. biceps brachi
  3. brachialis
  4. lateral cutaneous nerve of the forearm
  5. later epicondyle
  6. biceps brachii tendon
  7. brachioradialis
  8. radial artery
  9. bicipital aponuerosis
  10. cephallic vein
  11. median vein of the forarm
  12. medial cutaneous nerve of the forearm
  13. brachial artery
  14. brachial veins
  15. median nerve
  16. medial epicondyle
  17. pronator teres
  18. antebrachial fascia
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6
Q

What veiw is this?

Label 1-17

A

Anterior

  1. cephalic vein
  2. biceps bachii
  3. brchialis
  4. brachioradialis
  5. radial nerve
  6. deep branch of radial nerve
  7. superficial branch of radial nerve
  8. supinator
  9. radial artery
  10. Basilic vein
  11. brachial artery
  12. inferior ulnar collateral artey
  13. ulnar nerve
  14. median nerve
  15. medial epicondyle
  16. ulnar artey
  17. pronator teres
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7
Q

The forearm extends from the ___ to the ____. It contains 2 bones which are the _____ & the ____ that are connected by the _____ ____. Muscles of the forearm work to move the _____, ___, and _____. _____ ____ divides the muscles of the forearm into anterior (____) and posterior (_____) compartments.

A

elbow to the wrist

radius

ulna

interosseous membrane

elbow, wrist (carpal) complex, and digits (fingers)

Antebrachial fascia

flexor (remember AF)

extensor (remember PE)

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8
Q

The anterior compartment of the forearm contains the ___ and ____ nerves (all muscles in ant. com. are innervated by ____ EXCEPT for 1 ½ muscles.) The Ant. Com. alsor has the____, ____, and _______ areteris and veins. It has muscles that flex joints of ____, ___, and ____ and _____ the forearm. Tendons of most flexor muscles are held in place by the ____ ____ _____ and the ____ ___ (thickenings of the_____fascia)

A

Median and ulnar

median

Radial, ulnar and anterior interosseus arteries and veins

elbow, wrist and hand

pronate

Palmar carpal ligament

flexor retinaculum

antebrachial

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9
Q

All muscles of the anterior compartment are innervated by the ___ ____ except for _____ ____ ____ and the medial half of ____ ____ ______ which are innervated by the ____ ___.

A

median nerve

flexor carpi ulnaris

flexor digitorum profundus

ulnar nerve

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10
Q

The lateral half of flexor digitorum profundus that is innervated by the median nerve will help flex digits ____-___ while ulnar nerve innervation of the medial side will help flex digits ___-___.

A

Lateral part (to digits 2-3) by median nerve (anterior interosseous nerve); medial part (to digits 4-5) by ulnar nerve

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11
Q

Generally, what is the common proximal attachments, action, and innervation of the anterior compartment?

A

Prox attach: Medial humeral epicondyle (common flexor origin)

Action: flexion

Innervation Median nerve and some ulnar nerve

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12
Q

What muscles are in the superficial group of the anterior compartment?

A

pronator teres

Flexor carpi radialis

flexor carpi ulnaris

Palmaris longus

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13
Q

Tell me the the following about pronator teres:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

Innervation: Median nerve

Action: Pronates forearm

Proximal attachment: medial epicondyle

Distal attachment: Radius

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14
Q

Tell me the the following about flexor carpi radialis:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Median nerve

o Action: Flexes and abducts hand at wrist

o Proximal attachment: Medial humeral epicondyle

o Distal attachment: Base of 2nd metacarpal

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15
Q

Tell me the the following about flexor carpi ulnaris:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: **Ulnar nerve**

o Action: Flexes and adducts hand at wrist

o Proximal attachment: Olecranon

o Distal attachment: Pisiform, hook of hamate, 5th metacarpal

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16
Q

Tell me the the following about Palmaris longus:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Median nerve

o Action: Flexes hand at wrist and tenses palmar aponeurosis

o Proximal attachment: Medial humeral epicondyle

o Distal attachment: Flexor retinaculum, palmar aponeurosis

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17
Q

Label 1-8

A
  1. brachioradialis
  2. medial epicondyle
  3. pronator teres
  4. flexor carpi radialis
  5. palmaris longus
  6. flexor carpi ulnaris
  7. tendon of palmaris longus
  8. flexor retinaculum
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18
Q

label 1-9

A
  1. Medial epicondyle
  2. supinator
  3. flexor digitorum superficialis
  4. wrist
  5. carpomertacarpal
  6. metacarpophalangeal
  7. proximal
  8. distal
  9. interphalageal
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19
Q

Label 1-4

A
  1. supinator
  2. flexor digitorum profundus
  3. flexor pollicis longus
  4. pronator quadratus
20
Q

What are the intermediate group muscles of the anterior compartment?

A

Flexor digitorum superficialis

21
Q

Tell me the the following about Flexor digitorum superficialis:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Median nerve

o Action: Flexes middle phalanx at proximal interphalangeal (PIP) joint of digits 2-5

o Proximal attachment: Medial humeral epicondyle

o Distal attachment: Middle phalanges of digits 2-5

22
Q

What are the deep group muscles of the anterior compartment?

A

Flexor pollicis longus

flexor digitorum profundus

Pronator quadratus

23
Q

Tell me the the following about Flexor digitorum profundus:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Lateral part (to digits 2-3) by median nerve (anterior interosseous nerve); medial part (to digits 4-5) by ulnar nerve

o Action: Flexes distal phalanx at distal interphalangeal (DIP) joint of digits 2-5

o Proximal attachment: Anterior ulna and interosseous membrane

o Distal attachment: Distal phalanges of digits 2-5

24
Q

Tell me the the following about Flexor pollicis longus:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Median nerve (anterior interosseous nerve)

o Action: Flexes 1st digit (thumb)

o Proximal attachment: Anterior radius

o Distal attachment: Base of distal phalanx of thumb

25
Q

Tell me the the following about pronator quadratus:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

Pronator quadratus

o Innervation: Median nerve (anterior interosseous nerve)

o Action: Pronates forearm

o Proximal attachment: Anterior ulna

o Distal attachment: Anterior radius

26
Q

Posterior compartment of the forearm contains the ____ nerve, the _____ _____ artery and vein, Muscles that _____ joints of elbow, wrist, and hand and those that ____ the ____ joint. There is on exception! The _____ passes ____ to the elbow and thus acts as a ___ of the elbow. Extensor tendons are held in place by the____ ____.

A

radial

Posterior interosseous

extend

supinate

radioulnar

brachioradialis

anterior

flexor

extensor retinaculum

27
Q

What is the common prox attachment, distal attachment, and action of the posterior compartment of the forearm?

A

o Common proximal attachment: Lateral humeral epicondyle

o Common innervation: Radial nerve

o Common action: Extension

(except brachioradialis)

28
Q

What are the superficial muscles of the posterior compartment? (6)

A
  1. Brachioradialis
  2. Extensor carpi radialis longus
  3. Extensor carpi radialis brevis
  4. Extensor digitorum
  5. Extensor digiti minimi
  6. Extensor carpi ulnaris
29
Q

Tell me the the following about brachioradialis:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Radial nerve

o Action: **Flexes forearm**

o Proximal attachment: Lateral supracondylar ridge of humerus

o Distal attachment: Distal radius

30
Q

Tell me the the following about Extensor carpi radialis longus

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Radial nerve

o Action: Extend and abduct hand at wrist

o Proximal attachment: Lateral supracondylar ridge of humerus

o Distal attachment: Dorsal aspect of base of 2nd metacarpal

31
Q

Tell me the the following about Extensor digitorum:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

Extensor digitorum

o Innervation: Posterior interosseous nerve (radial nerve)

o Action: Extends digits 2-5 at metacarpophalangeal joints

o Proximal attachment: Lateral epicondyle of humerus

o Distal attachment: Extensor expansions of digits 2-5  Triangular tendinous aponeurosis that wraps around head of metacarpal and base of proximal phalanx

32
Q

Tell me the the following about Extensor carpi radialis brevis:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

Extensor carpi radialis brevis

o Innervation: Deep branch of radial nerve

o Action: Extend and abduct hand at wrist

o Proximal attachment: Lateral epicondyle of humerus

o Distal attachment: Dorsal aspect of base of 3rd metacarpal

33
Q

Tell me the the following about Extensor digiti minimi:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

Extensor digiti minimi

o Innervation: Posterior interosseous nerve (radial nerve)

o Action: Extends digit 5 at metacarpophalangeal joint

o Proximal attachment: Lateral epicondyle of humerus

o Distal attachment: Extensor expansion of digit 5

34
Q

Tell me the the following about Extensor carpi ulnaris:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

Extensor carpi ulnaris

o Innervation: Posterior interosseous nerve (radial nerve)

o Action: Extends and adducts hand at wrist

o Proximal attachment: Lateral epicondyle of humerus

o Distal attachment: Dorsal aspect of base of 5th metacarpal

35
Q

What are the deep muscles of the posterior compartment? (5)

A

supinator

abductor pollicis longus

extensor pollicis longus

extensor pollicis brevis

extensor indicis

36
Q

Tell me the the following about supinator:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Deep branch of radial nerve

o Action: Supinates forearm

o Proximal attachment: Lateral epicondyle of humerus

o Distal attachment: Proximal radius

37
Q

Tell me the the following about abductor pollicis longus:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Posterior interosseous nerve (radial nerve)

o Action: Abducts thumb

o Proximal attachment: Posterior ulna and radius

o Distal attachment: Base of 1st metacarpal

38
Q

Tell me the the following about extensor pollicis longus:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Posterior interosseous nerve (radial nerve)

o Action: Extends distal phalanx of thumb

o Proximal attachment: Posterior ulna

o Distal attachment: Base of distal phalanx of thumb

39
Q

Tell me the the following about extensor pollicis brevis:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Posterior interosseous nerve (radial nerve)

o Action: Extends proximal phalanx of thumb at metacarpophalangeal joint

o Proximal attachment: Posterior radius

o Distal attachment: Base of proximal phalanx of thumb

40
Q

Tell me the the following about extensor indicis:

Innervation:

Action:

Proximal attachment:

Distal attachment:

A

o Innervation: Posterior interosseous nerve (radial nerve)

o Action: Extends digit 2

o Proximal attachment: Posterior ulna

o Distal attachment: Extensor expansion of digit 2

41
Q

Label 1-14

What view is this?

A

posterior view

  1. olecranon
  2. aconeous
  3. flexor carpi ulnaris
  4. extensor carpi ulnaris
  5. extensor digiti minimi
  6. brachioradialis
  7. later epicondyle
  8. extensor carpi radialis longus
  9. extensor carpi radialis brevis
  10. extensor digitorum
  11. abductor pollicis loingus
  12. extensor pollicis brevis
  13. anatomical snuff box
  14. extensor pollicis longus
42
Q

Label 1-15

A
  1. extensor pollicis longus
  2. extensor indicis
  3. dorsal carpal arch
  4. lateral epicondyle
  5. anconeous
  6. supinator
  7. posterior intercosseous nerve
  8. posterior intercosseous artery
  9. abductor pollicis longus
  10. extensor pollicis brevis
  11. dorsal tubercle of radius
  12. styloid process of radius
  13. radial artery
  14. base of 1st metacarpal
  15. dorsalis pollicis artery
43
Q

The Anatomical snuff box is a hollow area on ___ ___ when thumb is fully _____. The lateral boundary is formed by ____ ___ ___ and ___ __ ___. The medial boundary is formed by ____ ___ ____.

A

lateral wrist

extended

abductor pollicis longus and extensor pollicis brevis

extensor pollicis longus

44
Q

The____ _____ lies on the floor of the snuff box  The ____ ____ process can be palpated proximally in the snuffbox. The ____ of the ____ ___ can be palpated distally in the snuffbox. The ____ and ____can be palpated in the floor between the styloid and 1st metacarpal

A

radial artery

radial styloid process

base of the first metacarpal

scaphoid and trapezium

45
Q

Label 1-14

A
  1. extensor indicis
  2. extensor retinaculum
  3. extensor carpi radialis brevis
  4. extensor carpi radialis longus
  5. dorsal carpal branch
  6. dorsalis indicis artery
  7. 1st dorsal interosseous (retracted)
  8. abductor pollicis longus
  9. extensor pollicis brevis
  10. extensor pollicis longus
  11. radial artery in snuff box
  12. dorsalis pollicis arteries
  13. adductor pollicis
  14. radialis indicis artery

CADE (11 decks)

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