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BMS271 Upper Limb Anatomy > Neurology > Flashcards

Neurology Flashcards

1
Q

Median nerve roots

A

C6-T1

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2
Q

Roots of ulna nerve

A

C8-T1

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3
Q

Nerve roots and muscles innervated by Long Thoracic Nerve

A

C5-C7

Serratus Anterior

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4
Q

Nerve roots and muscles innervated by suprascapular nerve

A

C5-6

Supraspinatus & Infraspinatus

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5
Q

Claw hand is a result from damage to what nerve

A

Ulna nerve

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6
Q

Roots of musculocutaneous

A

C5-6

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7
Q

Nerve roots of Radial Nerve

A

C5-T1

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8
Q

Muscles innervated by Radial Nerve

A

Triceps brachii
Anconeus
Brachioradialis
Extensor carpi radialis longus

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9
Q

Nerve roots of Axillary nerve

A

C5&6

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10
Q

Name the borders of the Quadrangular space

A

Inferior border of subscapularis
Teres major
Long head of triceps
Surgical neck of humerus

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11
Q

Nerve roots and muscles innervated by Subscapular Nerve

A

C5-6

Subscapularis & Teres Major

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12
Q

Which dermatome innervates the skin over the thumb

A

C6

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13
Q

Nerve roots and muscles innervated by dorsal scapular Nerve

A

C5

Both rhomboids & Levator scapula

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14
Q

What is the presenting symptom of Median Nerve Palsy

A

Inability to flex distal interphalangeal joint of 2nd digit

&

Inability to flex digit 2 and 3 into a fist

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15
Q

What muscles does the brachial plexus emerge between

A

Anterior and middle scalene

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16
Q

Describe the pathway of Musculocutaneous Nerve

A

Enters coracobrachialis

exits lateral aspect of coracobrachialis

Travels between biceps brachii and Brachialis

Exits lateral to biceps tendon and gives off lateral cutaneous nerve of forearm

17
Q

What is ERB Duchanne Palsy

A

Injury to C5-6

Results in;

Flexion of fingers

Internal shoulder rotation

Over pronation of forearm/wrist

18
Q

Define Myotome

A

Skeletal muscle tissue innervated by a single pair of spinal nerves

19
Q

What spinal nerve is responsible for lateral rotation of humerus

A

C5

20
Q

What spinal nerve is responsible for medial humeral rotation

A

C6-8

21
Q

Describe the course of the Axillary Nerve and it’s innervations

A

Arises from posterior cord

Enters quadrangular space

Wraps around surgical neck of humerus

Gives off upper lateral cutaneous nerve

Innervates:

Deltoid, teres minor, glenohumeral joint

22
Q

What is badge patch anaesthesia ?

A

Damage to Axillary Nerve

Lack of sensation over badge patch of upper arm

23
Q

Describe the course of the Radial Nerve

A

Arises from posterior cord

Descends posterior to the brachial artery

then passes posteriorly between the long and medial heads of triceps brachii

Divides anterior to lateral epicondyle into deep and superficial branches

Deep branch pierces supinator

Superficial remains lateral and innervates the skin of forearm

24
Q

Describe the course of the median nerve

A

Arises from medial and lateral cords

Arises lateral to brachial artery, crossed it distally to become medial

Superficial to brachialis and deep to bicipital appneurosis in cubital fossa

Travels between pronator teres heads

Travels along Flexor Digitorum Superficialis

Becomes superficial 5cm proximal to carpal tunnel

Gives off branches in the hand

25
Q

Describe the course of the ulna nerve

A

Arises from medial cord

Descends medial to brachial artery

Enters forearm between heads of flexor carpi Ulnaris

Descends forearm on the superficial, medial surface of flexor digitorum profundus

Under palmaris brevis

26
Q

Name the borders of the cubital fossa

A

Lateral border: medial border of brachioradialis

Medial border: lateral border of pronator teres

Superior border: hypothetical line between epicondyles of humerus

27
Q

Name the floor of the Cubital Fossa

A

Proximal: brachialis

Distal: supinator

28
Q

What are the contents of the Cubital Fossa

Hint: BBRM

A

Biceps brachii tendon

Brachial artery

Radial Nerve

Median nerve

29
Q

What spinal nerves are responsible for adduction of humerus

A

C6-8

30
Q

What spinal nerves are responsible for abduction

A

C5

31
Q

What spinal nerves are responsible for humeral extension

A

C6-8

32
Q

What spinal nerves are responsible for humeral flexion

A

C5

BMS271 Upper Limb Anatomy (15 decks)

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