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Anatomy 3 final (practical and oral part) > Practical topic 14 > Flashcards

Practical topic 14 Flashcards

n. medianus, n. ulnaris, n. radialis, n. musculocutaneus, a. brachialis till the elbow joint

1
Q

N. medianus

Where does it arise from?

A

C8 and T1 (T2) spinal nerves, by common trunk with n. ulnaris (cranial division)

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2
Q

N. medianus

Where does it run

A
  • Runs next to a. brachialis → a. mediana
  • Runs towards the antebrachium
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3
Q

N. medianus

From what nerve does it recive branches from?

A

Receives branch from n. musculocutaneous

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4
Q

N. medianus

Which muscles does it innervate?

A

Most flexor muscles of carpus and digits

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5
Q

N. ulnaris

Where does it arise from?

A

C8 and T1 (T2) spinal nerves, by common trunk with n. mediana (caudal division)

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6
Q

N. ulnaris

Where does it run?

A
  • Run caudally of n. musculocutaneous and n. medianus
  • Crosses elbow caudal to medial epicondyle of the humerus (epicondylus medialis humeri)
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7
Q

N. ulnaris

Which branches does it give off?

A

Gives off caudal cutaneous antebrachial nerve near the middle arm

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8
Q

N. ulnaris

Which muscles does it innervate?

A
  • M. flexor carpi ulnaris
  • M. flexor digitalis superficialis
  • M. flexor digitalis profundus

(flexors of digit IV and V)

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9
Q

N. radialis

Where does it arise from?

A

C7-T1(2) spinal nerves

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10
Q

N. radialis

What type of nerve?

A

Motor nerve

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11
Q

N. radialis

Where does it run?

A

Runs caudally to a. brachialis (along with n. mediana and n. ulnaris) → enters space between m. triceps brachii and humerus (distal to m. teres major)

Runs on m. brachialis (follows sulcus brachialis), goes over lateral side

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12
Q

N. radialis

Which branches does it divide into?

A
  • N. radialis profundus
  • N. radialis superficialis
    • Runs along with v. cephalica
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13
Q

N. radialis

Which muscles does it innervate?

A
  • All extensors of the elbow (m. triceps brachii)
  • Carpal and phalangeal extensors
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14
Q

N. musculocutaneous

Where does it arise from?

A

C7-C8 spinal nerves (car, eq)

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15
Q

N. musculocutaneous

What type of nerve?

A

Sensory nerve

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16
Q

N. musculocutaneous

Where does it run?

A
  • Runs medial to shoulder joint and joins n. medianus
  • Between biceps (cranial) and brachial vessels (caudal)
17
Q

N. musculocutaneous

Which branches does it give off?

A

Medial cutaneous antebrachial nerve (usually removed with the skin)

18
Q

N. musculocutaneous

Which muscles does it innervate?

A
  • M. coracobrachialis
  • M. bicpes brachii
  • M. brachialis
19
Q

A. brachialis

Branches

A
  1. (A. circumflexa humeri cranialis ??)
  2. A. profunda brachii
  3. A. bicipitalis
  4. A. collateralis ulnaris
  5. A. brachialis superficialis
  6. A. transversa cubiti
  7. (A. interossea communis ???)
20
Q

A. profunda brachii

Which muscles does it supply?

A

M. triceps brachii

21
Q

A. bicipitalis

Which muscles does it supply?

A
  • M. biceps brachii (enters distally)
  • Small branches to:
    • M. coracobrachialis
    • Elbow joint
22
Q

A. collateralis ulnaris

Which muscles does it supply?

A
  • M. triceps brachii
  • Olecranon
  • N. ulnaris
23
Q

A. transversa cubiti

Which muscles does it supply?

A

Elbow and adjacent muscles

24
Q

A. transversa cubiti

Which vessel does it anastomose with?

A

A. interossea cranialis

25
Q
A
  1. A. axillaris
  2. A. brachialis
  3. A. brachialis profunda
  4. A. bicipitalis
  5. A. brachialis superficialis
  6. A. ulnaris collateralis
  7. N. musculocutaneous
    • Innervates m. biceps brachii
  8. M. biceps brachii
  9. N. mediana
  10. N. ulnaris
  11. Caudal cutaneous antebrachial nerve
  12. N. radialis
  13. N. axillaris
  14. N. thoracodorsalis
  15. N. thoracica lateralis
  • * V. cubiti mediana
26
Q

Caudomedial view of brachium

A
  1. A. brachialis
  2. A. circumflex humeri cranialis
    • Belongs to a. axillaris
  3. A. bicipitalis
  4. M. biceps brachii
  5. A. brachialis superficialis
  6. A. ulnaris collateralis
  7. N. musculocutaneous
  8. N. mediana
  9. N. ulnaris
  10. N. thoracodorsalis
  11. N. axillaris
  12. N. suprascapularis
27
Q
A
  1. N. musculocutaneous
  2. M. coracobrachialis
    • Innervated by n. musculocutaneous
  3. M. biceps brachii
    • Innervated by n. musculocutaneous
  4. M. brachialis
    • Innervated by n. musculocutaneous
  5. Communicating branch from n. musculocutaneous
  6. N. antebrachii
  7. N. mediana
  8. N. ulnaris
  9. Common trunk of n. mediana and n. ulnaris
  10. Caudal cutaneous antebrachial nerve
  11. N. radialis
  12. N. Thoracodorsalis
  • * Branches of the n. axillaris
28
Q

Craniomedial view of the brachium

A
  1. N. musculocutaneous
  2. M. coracobrachialis
    • Innervated by n. musculocutaneous
  3. M. biceps brachii
    • Innervated by n. musculocutaneous
  4. M. brachialis
    • Innervated by n. musculocutaneous
  5. Communicating nerve to n. mediana from n. musculocutaneous
  6. Medial cutaneous antebrachial nerve
  7. N. mediana
  8. N. ulnaris
  9. Common trunk for n. mediana and n. ulnaris
  10. Caudal caudal cutaneous antebrachial nerve
  11. N. radialis
  12. N. thoracodorsalis

Anatomy 3 final (practical and oral part) (128 decks)

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