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B4 Anatomy > Upper Limb Innervation > Flashcards

Upper Limb Innervation Flashcards

1
Q

What bones are involved in the Pectoral Girdle?

A

Scapula and clavicle

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2
Q

The coracoclavicular ligament attached to…

A

The trapezoid line/conoid tubercle of the clavicle

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3
Q

The head of the humerus innervates with the:

A

Glenoid cavity of the scapula

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4
Q

The tendon of the biceps brachii muscle attaches to:

A

The inter-tubercular sulcus of the humerus

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5
Q

The radial nerve follows the..

A

Radial groove of the humerus

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6
Q

The forearm bones

A

Radius and ulna

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7
Q

3 phalange bones

What’s different about the thumb?

3 parts of each phalange bone

A

Proximal, middle, distal

There is no middle in the thumb

Base, head, shaft

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8
Q

Carpal bones

Sally Lowers Tims Pants Then Things Can Happen

A 
Scaphoid
Lunate
Triquetrum
Pisiform
Trapezium
Trapezoid
Capitate
Hamate
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9
Q

Brachial plexus is formed form the entire ventral rami of

A

C5-C8 and most of T1

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10
Q

Brachial plexus order of nerve structures

Robert Taylor Drinks Cold Beer

A

Roots, Trunks, Divisions, Cords, Branches

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11
Q

Which roots make up Superior/upper trunk

A

C5 and C6

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12
Q

What roots make up the middle trunk

A

C7

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13
Q

What roots make up the inferior trunk?

A

C8 and T1

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14
Q

Each trunk has a…

A

Anterior and posterior division

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15
Q

Cords are named for their relationship to the..

A

Axillary artery

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16
Q

Cords are formed from __________ and the 3 types are:

A

Divisions

Lateral, medial, posterior

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17
Q

Lateral cord

A

C5-C7

Anterior division of superior and middle trunks

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18
Q

Medial cord

A

C8 and T1

Anterior division of inferior trunk

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19
Q

Posterior cord

A

C5-T1

Posterior division of all 3

AKA all roots, trunks, and divisions

20
Q

4 supraclavicular branches of the Brachial plexus

A

Suprascapular nerve
Nerve to subclavius
Dorsal Scapular nerve
Long thoracic nerve

21
Q

13 infraclavicular branches of brachial plexus

A

3 from lateral cord
5 from medial cord
5 from posterior cord

22
Q

3 infraclavicular branches from Lateral Cord

A

Lateral pectoral nerve
Musculocutaneous nerve
lateral root of Median Nerve

All C5-C7

23
Q

Infraclavicular branches from Medial Cord

A 
Medial pectoral nerve
Medial brachial cutaneous nerve
Medial antebrachial cutaneous nerve
Ulnar Nerve
Medial root of median nerve

All C8, T1

Ulnar sometimes has C7

24
Q

What roots make up the ulnar nerve?

A

C8, T1 and occasionally C7

Medial nerve

25
Q

5 infraclavicular branches from posterior cord

A 
Upper subcapsular nerve 
Thoracodorsal nerve
Lower subcapsular nerve
Axillary nerve
Radial nerve
26
Q

Roots that supply axillary nerve

A

C5 C6

Posterior cord

27
Q

Roots that supply radial nerve

A

C5-T1

Posterior cord

28
Q

root supply to Musculocutaneous nerve

A

C5-C7

From lateral cord

29
Q

Terminal branch of the lateral cord

A

Musculocutaneous nerve

30
Q

Innervates muscles of flexor/anterior compartment of the arm

A

Musculocutaneous nerve

31
Q

When the musculocutaneous nerve passes into the forearm its name becomes…

A

The lateral cutaneous nerve of the forearm/lateral antebrachial cutaneous nerve

32
Q

Innervates the skin on lateral side of the forearm

A

Musculocutaneous nerve

33
Q

Formed from the joining of the lateral root of the lateral cord and the medial root of the medial cord

A

Median nerve

34
Q

Innervate all but 1.5 muscles of the flexor/anterior compartment of the forearm

A

Median nerve

35
Q

Compression on the carpal tunnel on the causes…

Due to what nerve?

A

Carpal tunnel syndrome

Median nerve

36
Q

Innervate the thenar muscles

A

Median nerve

Thumb

37
Q

Terminal branch of the medial cord

A

Ulnar nerve

38
Q

Innervates 1.5 muscles of the flexor/anterior compartment of the forearm

A

Ulnar nerve

39
Q

Mainly innervates ALL the hand muscles EXCEPT thumb

A

Ulnar nerve

40
Q

A terminal branch of the posterior cord

A

radial nerve

41
Q

Innervates the muscles of the extensor/posterior compartment of the arm

A

Radial Nerve

42
Q

Innervates ALL muscles of the Extensor/Posterior compartment of the forearm

A

Radial nerve

43
Q

Nerve to the scapular region, NOT the arm forearm or hand

Innervates deltoid muscle and teres minor muscle

A

Axillary nerve

44
Q

A terminal branch of the posterior cord

A

Axillary nerve

45
Q

Cutaneous innervation of the Arm, Forearm, and Hand is provided by..

A

Cutaneous branches of all 5 terminal branches of the brachial plexus

AND

4 other smaller branches of the brachial plexus

Total of 9 nerves

B4 Anatomy (10 decks)

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