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Musculoskeletal Anatomy > Anatomy of the Upper Limb > Flashcards

Anatomy of the Upper Limb Flashcards

1
Q

What type of joints are sternoclavicular, glenohumeral and acromioclavicular?

A

Acromioclavicular - plane

Glenohumeral - ball and socket

Sternoclavicular - saddle

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2
Q

What type of joints are proximal/distal radioulnar and radiocarpal?

A

Proximal/distal radioulnar - pivot

Radiocarpal - ellipsoid

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3
Q

During pronation, the radius moves over/under the ulna

A

Over

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4
Q

What type of joint are MCP joints?

A

Condyloid

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5
Q

What type of joint is the 1st CMC joint?

A

Saddle

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6
Q

Identify the muscle and its nervous innervation

A
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7
Q

Identify the muscles and their nervous innervation

A
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8
Q

Identify the muscle and its nervous innervation

A
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9
Q

Identify the muscle and its nervous innervation

A
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10
Q

What are the four rotator cuff muscles?

A

Supraspinatus

Infraspinatus

Subscapularis

Teres minor

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11
Q

Identify the muscles of the rotator cuff

A
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12
Q

What muscles are found in the anterior arm?

A

Biceps brachii

Brachialis

Coracobrachialis

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13
Q

Identify the muscles of the anterior arm

A
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14
Q

What nerve innervates the anterior arm muscles?

A

Musculocutaneous nerve

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15
Q

What actions do the anterior arm enable?

A

Flexion of arm and forearm

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16
Q

The biceps brachii also enables which action?

A

Forearm supination

17
Q

Which muscle is found in the posterior arm?

A

Triceps brachii

18
Q

What nerve innervates the posterior arm?

A

Radial nerve

19
Q

What nerve innervates most of the anterior forearm?

A

Median nerve

20
Q

What actions does the posterior arm enable?

A

Extension of arm and forearm

21
Q

Which muscles in the anterior forearm are innervated by the ulnar nerve and NOT median?

A

Flexor carpi ulnaris

Medial half of flexor digitorum profundus

22
Q

What actions does the anterior forearm enable?

A

Wrist and digit flexion

Pronation, adduction and abduction of the wrist

23
Q

What nerve innervates the posterior compartment of the forearm?

A

Radial nerve

24
Q

What actions do the posterior forearm muscles enable?

A

Extension of wrist and digits

Supination, adduction and abduction of wrist

25
Q

The thenar eminence is made up of which muscles?

A

Abductor pollicis brevis

Flexor pollicis brevis

Opponens pollicis

26
Q

The hypothenar eminence is made up of which muscles?

A

Abductor digiti minimi

Flexor digiti minimi brevis

Opponens digit minimi

27
Q

The hypothenar/thenar eminence is affected by carpal tunnel syndrome

A

Thenar eminence

28
Q

What are the lumbricals attached to?

A

Tendons of flexor digitorum profundus

29
Q

The dorsal interossei enable adduction/abduction of digits and the palmar interossei enable adduction/abduction of digits

A

Dorsal = abduction

Palmar = adduction

30
Q

The brachial plexus originates at what spinal roots?

A

C5-T1

31
Q

Cords of the brachial plexus travel around which artery?

A

Brachial artery

32
Q

The musculocutaneous nerve is a branch of which cord of the brachial plexus?

A

Lateral cord

33
Q

The posterior cord branches to give which nerves?

A

Axillary and radial

34
Q

The ulnar nerve is a branch of which cord?

A

Medial cord

35
Q

The median nerve is formed from branches of which cords?

A

Lateral and medial

36
Q

What is contained within the carpal tunnel?

A

Flexor digitorum superficialis (four tendons)

Flexor digitorum profundus (four tendons)

Flexor pollicis longus (one tendon)

Median nerve

37
Q

Median nerve compression causes numbness in which digits?

A

Digits 1-3 and lateral half of digit 4

38
Q

In the superficial palmar arch, the radial/ulnar artery is dominant

A

UInar artery

Musculoskeletal Anatomy (15 decks)

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