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Antomy BLOCK 4 > Upper Limb > Flashcards

Upper Limb Flashcards

1
Q

What is the pectoral girls comprised of?

A

Clavicle and scapula

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2
Q

What does the superior surface of the clavicle look like ?

A

Smooth

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3
Q

What does the inferior surface of the clavicle look like?

A

Landmarks visible.

  • trapezoid line
  • groove for subclavius muscle
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4
Q

What is on the medial part of the clavicle

A

Eternal extremity

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5
Q

What is on the lateral end of the clavicle?

A

Acromegaly extremity

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6
Q

Attachment of the caracoclavicular ligament

A

Trapezoid line of the clavicle

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7
Q

What’s the difference in appearance of the acormial extremity and the eternal extremity?

A

Acromial is smooth

Sternal is edged

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8
Q

Protection of subclavian vesicles

A

Groove for subclavius muscle

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9
Q

What are the two landmarks of the clavicle that provide attachment for the caracoclavicular ligament?

A

Trapezoid line and the conoid tubercle

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10
Q

What are the main features of the radius

A

Head and neck

Styloid process

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11
Q

Important features of the ulna

A
  • olecranon process
  • trochlear
  • coronoid process
  • head
  • styloid process
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12
Q

Bones of the wrist

A 
Scaphoid
Lunate
Triquetrum
Pisiform
Trapezium 
Trapezoid
Capitate
Hamate
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13
Q

Which finger does not have a middle phalange

A

Thumb

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14
Q

Formed from the entire ventral rami of C5-C8 and most of the Ti ventral ramus

A

Brachial plexus

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15
Q

What does the brachial plexus consist of?

A

Roots, trunk, divisions, cords, and terminal named branches

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16
Q

Roots of brachial plexus

A

Ventral rami of C5-T1

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17
Q

Trunks of the brachial plexus are formed from the ____

A

Roots

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18
Q

Superior trunk is formed from what?

A

C5-C6

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19
Q

Middle trunk is formed from?

A

C7

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20
Q

What is the inferior (lower) trunk consist of?

A

C8 and T1

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21
Q

Each trunk of the brachial plexus is decided into __________ and _________ divisions

A

Anterior and posterior

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22
Q

What are the cords of the brachial plexus named for?

A

Their relationship to the axillary artery

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23
Q

Cords are formed from their _________, and named lateral, medial, and posterior cords

24
Q

Anterior divions of superior and middle trunks make up what cord?

A

Lateral cords (C5-C7)

25
Anterior division of inferior trunk makes what cord?
Medial (C8 and T1)
26
Posterior division of all 3 trunks makes up what cord?
Posterior cord (C5-T1)
27
How many branches of the brachial plexus are there?
17 - 4 supraclavicular branches - 13 infraclavicular branches
28
Where do the 13 infraclavicular branches come from?
3 from lateral cord 5 from medial cord 5 from posterior cord
29
What are the 3 infraclavicular branches from the lateral cord?
- lateral pectoral nerve (C5, C6, C7) - musculocutaneous nerve (C5, C6, C7) - lateral root of median nerve (C5, C6, C7)
30
the _________ originates from the medial and lateral "roots" (contributions from respective cords) and contains fibers from C5-T1
Median nerve
31
What are the 5 terminal branches from the medial cord?
- medial pectoral nerve (C8, T1) - media brachial cutaneous nerve (C8, T1) - medial antebrachial cutaneous nerve (C8-T1) - ulnar nerve (c8, T1, occasionally C7) - medial root of median nerve (C8, T1)
32
What are the terminal branches from the posterior cord?
- upper subscapular nerve (C5, C6) - thoracodorsal nerve (C6, C7, C8) - lower subscapular nerve (C5, C6) - axillary nerve (C5, C6) - radial nerve (C5-T1)
33
Musculocutaneous nerve contains fibers from ___________ spinal nerves
Ventral rami of C-5 -6 -7
34
Musculocutaneous nerve is a ____________ of the lateral cord
Terminal branch
35
What does the musculocutaneous nerve innervate?
Muscled of flexor/anterior compartment of the arm NOT FOREARM
36
What happens when the musculocutaneous nerve passes onto the forearm?
Name changing, to the lateral cutaneous nerve of the forearm/lateral antebrachial cutaneous nerve
37
What does the lateral cutaneous nerve of the forearm/lateral antebrachial cutaneous nerve innervate?
Skin on lateral side of the forearm
38
What supplies motor innervation to only anterior/flexor region of arm?
Musculocutaneous nerve
39
The median nerve contains fibers from _____________ spinal nerves
Ventral rami of C5-T1
40
Median nerve is formed from the joining of the _________ and the ________
- lateral root of the lateral cord | - medial root of the medial cord
41
What does the median nerve innervate?
All but 1.5 muscles of hte flexor/anterior compartment of the forearm
42
What causes carpal tunnel?
Compression of the median nerve within the carpal tunnel causes carpal tunnel syndrome
43
What does the median nerve innervate in the hand?
Mainly innervates the thenar muscles (thumb)
44
The ulnar nerve contains fibers from the ____________ spinal nerves
Ventral rami of C7-T1
45
The ulnar nerve is a terminal branch of what?
Medial cord
46
What does the ulnar nerve innervate
1/5 muscles of the flexor/anterior compartment of the forearm
47
What does the ulnar nerve innervate in the hand
Mainly innervates all the hand muscles except those to the thumb -median does that
48
Radial nerve contains fibers from __________spinal nerves
Ventral rami of C5-T1
49
Radial nerve is a terminal branch of what?
Posterior cord
50
What does the radial nerve innervate?
Extensor/posterior compartment of the arm, the entire thing
51
What does the the radial nerve innervate in the forearm?
All muscles of the extensro/posterior compartment of the forearm -entire thing
52
The axillary nerve contains fibers from ___________ spinal nerves
Ventral rami of C5, C6
53
What is the axillary nerve a nerve to?
The scapular region, NOT the arm, forearm, hand
54
What does the axillary nerve innervate?
Deltoid muscle and there's minor muscle
55
The axillary nerve is a terminal branch of what?
The posterior cord
56
What are all the 4 cutaneous branches that also innervate the upper limbs
- suprascapular - intercostobrachial - medial cutaneous - medial antebrachial cutaneous

Antomy BLOCK 4 (11 decks)

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