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MSK > Nerves > Flashcards

Nerves Flashcards

1
Q

What nerves make up the brachial plexus + their nerve roots?

A

Musculocutaneous C5-C7
Axillary C5-C6
Radial C5-T1
Median C5-T1
Ulnar C8-T1

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2
Q

What makes up the M of the brachial plexus?

A

Musculocutaneous
Median
Ulnar

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3
Q

nerve roots of musculocutaneous nerve

A

C5-C7

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4
Q

nerve roots of axillary nerve

A

C5-C6

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5
Q

nerve roots of median nerve

A

C5-T1

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6
Q

nerve roots of radial nerve

A

C5-T1

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7
Q

nerve roots of ulnar nerve

A

C8-T1

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8
Q

Where is the motor supply of the musculocutaneous nerve?

A

Anterior arm:
Biceps brachii
Brachialis
Coracobrachialis

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9
Q

Where is the motor supply of the axillary nerve?

A

Deltoid
Teres minor

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10
Q

Where is the motor supply of the median nerve?

A

Anterior forearm:
Pronator teres
Flexor carpi radialis
Palmaris longus

Thenar muscles:
Oppenens pollicis
ABductor pollicis brevis
Flexor pollicis brevis

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11
Q

Where is the motor supply of the radial nerve?

A

Posterior arm:
Triceps brachii

Posterior forearm:
Brachioradialis
Extensor carpi radialis longus + brevis
Extensor carpi ulnaris
Extensor digti minimi
Extensor digitorum
Anconeus

Supinator
Extensor indicis
Extensor pollicis longus + brevis
ABductor pollicis longus

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12
Q

Where is the motor supply of the ulnar nerve?

A

Flexor carpi ulnaris
Ulnar half of flexor digitorum profundus

Interossi
Hypothenar eminence
Bipennate lumbricals

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13
Q

Where is the sensory supply of the musculocutaneous nerve?

A

Becomes lateral cutaneous nerve of forearm
Lateral forearm

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14
Q

Roots of long thoracic nerve

A

C5-C7

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15
Q

What does the long thoracic nerve supply?

A

Serratus anterior

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16
Q

Roots of lateral pectoral nerve

A

C5-C7

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17
Q

Roots of median pectoral nerve

A

C8-T1

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18
Q

Where is the sensory supply of the axillary nerve?

A

Regimental badge area

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19
Q

Where is the sensory supply of the median nerve?

A

Radial 3 1/2 digits of palmar hand
Tips of those fingers on dorsum

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20
Q

Where is the sensory supply of the radial nerve?

A

Posterior arm + forearm
Radial 3 1/2 digits of dorsum of hand NOT finger tips

21
Q

Where is the sensory supply of the ulnar nerve?

A

Ulnar 1 1/2 digits of hand plantar + dorsum

22
Q

What does damage to the upper brachial plexus cause?
Presentation

A

Erb’s palsy
Waiters tip position - C5+C6 affected - oppose actions

23
Q

What does damage to the lower brachial plexus cause?
Presentation

A

Klumpke’s palsy
Claw hand - C8 + T1 affected - opposite actions

24
Q

Nerves of the lumbosacral plexus + roots

A

I Get Leftovers On Friday
Iliolinguinal L1
Genitofemroal L1-L2
Lateral femoral cutaneous L2-L3
Obturator L2-L4
Femoral L2-L4

25
Q

Where is the sensory supply of the Obturator nerve?

A

Skin over medial thigh

26
Q

Where is the sensory supply of the iliolinguinal nerve?

A

Skin over genitaial + upper medial thigh

27
Q

Where is the sensory supply of the lateral femoral cutaneous nerve?

A

Anterolateral thigh to knee

28
Q

Where is the sensory supply of the femoral nerve?

A

anterior femoral cutaneous branch - anterior thigh

Saphenous branch - medial leg

29
Q

Where is the motor supply of the Obturator nerve?

A

Medial thigh:
Adductor brevis
Adductor longus
Adductor Magnus
Gracilis
Obturator externus

30
Q

Where is the motor supply of the femoral nerve?

A

Anterior thigh:
Vastus lateralis
Vastus intermedialis
Vastus medialis
Iliacus
Rectus femoris
Sartorius

31
Q

Nerve roots of ilioliguinal nerve

A

L1

32
Q

Nerve roots of Genitofemoral nerve

A

L1-L2

33
Q

Nerve roots of lateral cutaneous nerve

A

L2-L3

34
Q

Nerve roots of obturator nerve

A

L2-L4

35
Q

Nerve roots of femoral nerve

A

L2-L4

36
Q

What is the lumbar plexus formed from?

A

Anterior rami L1-4 spinal nerves

37
Q

Nerves of the sacral plexus + roots

A

Salmon Is So Perfectly Pink
Superior gluteal L4-S1
Inferior gluteal L5-S2
Sciatic L4-S3
Posteior femroal cutaneous S1-S3
Pudendal S2-S4

38
Q

Nerve roots of superior gluteal nerve

A

L4-S1

39
Q

Nerve roots of inferior gluteal nerve

A

L5-S2

40
Q

Nerve roots of sciatic nerve

A

L4-S3

41
Q

Nerve roots of posterior femoral cutaneous nerve

A

S1-S3

42
Q

Where is the motor supply of the superior gluteal nerve nerve?

A

Abductors:
Gluteus medius
Gluteal minimus
Tensor fascia lata

43
Q

Where is the motor supply of the inferior gluteal nerve?

A

Gluteus maximus

44
Q

Where is the sensory supply of the posterior femoral cutaneous nerve?

A

Posterior thigh + leg

45
Q

Where is the sensory supply of the super and inferior gluteal nerve?

A

No sensory branches

46
Q

What does the sciatic nerve divide into + where?

A

Tibial nerve
Common peroneal nerve
At superior popliteal fossa

47
Q

Where is the motor supply of the tibial nerve?

A

Hamstring muscles:
- semitendinosus
- semimembranosus
- biceps femoris (long head)
- ischia part of ADuctor magnus

48
Q

Where is the motor supply of the common peroneal nerve?

A

Biceps femoris (short head)

49
Q

What is the sacral plexus formed by?

A

Anterior rami S1-S5
Receives contribution from L4+L5 via lumbosacral trunk

MSK (25 decks)

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