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Orthopaedics ST3 > Anatomy > Flashcards

Anatomy Flashcards

1
Q

from what part of the brachial plexus does the musculocutaneous nerve arise?

A

Lateral Cord (C5,6,7)

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2
Q

how does the musculocutaneous nerve leave the axilla?

A

By piercing coracobrachialis

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3
Q

where does the musculocutaneous nerve travel in the arm?

A

Between biceps and brachialis

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4
Q

where does the musculocutaneous nerve travel at the elbow?

A

Lateral to biceps tendon becoming lateral cutaneous nerve of forearm

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5
Q

what does the musculocutaneous nerve supply? (motor)?

A

Anterior compartment of arm:
Biceps
brachialis
Coracobrachialis

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6
Q

what does the musculocutaneous nerve supply? (sensory)?

A

lateral forearm

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7
Q

from what part of the brachial plexus does the axillary nerve arise?

A

Posterior Cord (C5,6,7)

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8
Q

how does the axillary nerve leave the axilla?

A
  • travels anterior to subscapularis
  • travels posteriorly
  • leaves via quadrangular space
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9
Q

what are the terminal branches of the axillary nerve?

A
  • Anterior - deltoid
  • posterior - to teres minor + sensation
    (upper lateral nerve of ARM)
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10
Q

what forms the radial border of the carpal tunnel?

A

Scaphoid tubercle and trapezium

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11
Q

what forms the ulnar border of the carpal tunnel?

A

Pisiform and hook of hamate

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12
Q

what forms the floor of the carpal tunnel?

A

proximal carpal row bones

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13
Q

what forms the roof of the carpal tunnel?

A

flexor retinaculum

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14
Q

what are the contents of the carpal tunnel?

A

median nerve
4x FDP tendons
4 x FDS tendons
FPL tendon

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15
Q

where is the palmar cutaneous branch of the median nerve given off?

A

Before entering the carpal tunnel

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16
Q

from which part of the brachial plexus does the radial nerve arise?

A

Posterior Cord (C5-T1)

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17
Q

how does the radial nerve leave the axilla?

A

through triangular interval along with profunda brachia artery going posterolaterally

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18
Q

where does the radial nerve travel in the arm?

A
  • Descends in spiral groove
  • pierces inter muscular septum
  • enters anterior compartment of arm
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19
Q

where does the radial nerve travel at the elbow?

A
  • lies anterior to lateral epicondyle

- enters forearm between brachialis + brachioradialis

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20
Q

what are the terminal branches of the radial nerve?

A
  1. Branches to ECRL + brachioradialis
  2. Posterior interosseous nerve (travels between 2 heads of supinator)
  3. Superficial radial nerve
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21
Q

from which part of the brachial plexus does the median nerve arise?

A

Medial + Lateral Cords (C6-T1)

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22
Q

where does the median nerve travel in the arm?

A
  • Lateral to brachial artery

- moves medial to brachial artery half way down arm

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23
Q

where does the median nerve travel at the elbow?

A
  • enters anterior compartment of forearm
  • between 2 heads of pronator teres
  • in cubital fossa
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24
Q

where does the median nerve travel in the forearm?

A

Between FDS + FDP

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25
what branches does the median nerve give off in the forearm?
- anterior interosseous nerve | - palmar cutaneous branch
26
which branches does the median nerve give off after passing through the carpal tunnel?
- Recurrent motor branch | - Palmar digital branch
27
which muscles are innervated by the anterior interosseous nerve?
deep anterior compartment - FPL - Radial 1/2 of FDP - PQ
28
which muscles are supplied by the recurrent motor branch of the median nerve?
Thenar muscles | LOAF
29
from where in the brachial plexus does the ulnar nerve arise?
Medial Cord (C8,T1)
30
where does the ulnar nerve travel in the arm?
Medial side | posterior to axillary vessels
31
where does the ulnar nerve travel in the forearm?
Between FDP + FCU
32
where does the ulnar nerve travel in the wrist?
- superficial to flexor retinaculum - medial to ulnar artery - through guyons canal - terminates in deep + superficial branches
33
which structures pass posterior to the medial malleolus?
T - tibialis posterior D - flexor digitorum longus A - posterior tibial artery V - posterior tibial vein N - tibial nerve H - flexor hallucis longus
34
which structures pass anterior to the medial malleolus?
Long saphenous vein Saphenous nerve
35
which structures pass posterior to the lateral malleolus?
Peroneus brevis Peroneus longus Sural nerve Short saphenous vein
36
which of the peroneus muscles is closer to the bone?
Peroneus brevis
37
which nerve may be damaged when approaching the fibula?
superficial peroneal nerve
38
does the ulnar nerve travel medial or lateral to the ulnar artery at the wrist?
Medial
39
Through what canal does the ulnar nerve travel at the elbow?
Cubital Tunnel
40
The ulnar nerve arises from which cord of the brachial plexus?
Medial (C8-T1)
41
the ulnar nerve pierces what septum in the arm?
Mid fascial septum to enter posterior compartment
42
the ulnar nerve lies medial or lateral to the brachial artery in the arm?
Medial
43
The ulnar nerve supplies what muscles in the forearm?
FCU and ulnar 1/2 of FDP
44
the median nerve arises from what cords of the brachial plexus?
Medial and Lateral
45
through what space does the radial nerve leave the axilla?
Triangular interval
46
the radial nerve travels with what artery through much of its course?
Profunda Brachii artery
47
what are the terminal branches of the radial nerve?
Deep branch Superficial radial nerve
48
the deep branch of the radial nerve becomes the posterior interosseous nerve at what point?
When is enters supinator
49
which 3 muscles attach to the coracoid?
Coracobrachialis, Biceps SH, pec minor
50
Where does the biceps insert?
Bicipital tuberosity of radius
51
what does the neural arch of a vertebra consist of?
2 transverse processes, 1 spinous process
52
facet joints are formed of what?
superior and inferior articular processes of adjacent vertebra
53
facet joints are a form of what joint? (zygapophyseal joints)
synovial joint
54
joints can be 1 of 3 types?
Fibrous Cartilaginous Synovial
55
what is an example of a fibrous joint?
Between bones of skull Non moveable
56
what is an example of a cartilaginous joint?
IV discs, between vertebrae (somewhat moveable)
57
what is an example of a synovial joint?
Hip Freely moveable
58
what is an example of a synovial joint?
Hip Freely moveable
59
what is the structure of an intervertebral disc?
Outer fibrous ring - annulus fibrosus Inner gel like - nucleus pulposus
60
intervertebral discs form what kind of joint?
fibrocartiliginous
61
what is the function of the intervertebral discs?
Shock absorption Allow slight movement

Orthopaedics ST3 (7 decks)

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