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ANATOMY DADDAY > msk > Flashcards

msk Flashcards

(63 cards)

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1
Q

Where does the deltoid originate and insert?

A

Originates from the lateral third of the clavicle and spine of scapula and inserts onto the deltoid tuberosity of the humerus

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2
Q

Movements produced by deltoid?

A

Extension of shoulder
Abduction of shoulder
Flexion of shoulder

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3
Q

Which nerve supplies the muscles of the anterior compartment of the forearm?

A

Musculocutaneous

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4
Q

Muscles of the anterior compartment of the arm?

A 
Biceps
Brachialis
Coracobrachialis
-supination
-flexion of the elbow
-flexion of the shoulder (weak)
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5
Q

Which nerve supplies the muscle of the posterior compartment of the arm?

A

Radial nerve

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6
Q

Movements produced by the triceps?

A

Extension of the elbow

Extension of the shoulder (weak)

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7
Q

Trapezius

A 
Spinous processes (T12)
Insertions: occiput and spine of scapula
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8
Q

Which nerve supplies trapezium?

A

Accessory nerve (CNXI)

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9
Q

Function of trapezium?

A

Elevates and depresses scapula

Retracts scapula

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10
Q

Supraspinatus origin and insertion?

A

Origin: supraspinous fossa
Insertion: greater tuberosity of humerus

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11
Q

Innervation of supraspinatus?

A

Suprascapular C5/C6

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12
Q

Function of supraspinatus?

A

Abducts arm

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13
Q

Origin and insertion of infraspinatus?

A

Origin: Infraspinous fossa
Insertion: Greater tuberosity of humerus

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14
Q

Innervation of infraspinatus?

A

Suprascapular C5/C6

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15
Q

Function of infraspinatus?

A

Externally rotates arm

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16
Q

Origin and insertion of Subscapularis? (this is the one on the front, lol)

A

Origin: Anterior surface of scapula (Subscapular fossa)
Insertion: Lesser tuberosity of humerus / shoulder capsule

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17
Q

Innervation of subscapularis?

A

C5/C6 upper and lower subscapular nerve

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18
Q

Function of subscapularis?

A

Internally rotates the arm

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19
Q

Innervation of the deltoid?

A

Axillary nerve (C5/C6)

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20
Q

Origin and insertion of biceps brachii?

A

Origin: SHORT head: Coracoid process LONG head: Labrum / glenoid
Insertion: Tuberosity of radius

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21
Q

Innervation of biceps brachii?

A

Musculocutaneous nerve C5/C6

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22
Q

Function of biceps brachii?

A

Supinates the forearm

Flexes the elbow

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23
Q

The nerve roots of the brachial plexus?

A

C5, C6, C7, C8, T1

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24
Q

The named nerves of the brachial plexus?

A 
Musculocutaneous nerve
Median nerve
Ulnar nerve
Axillary nerve
Radial nerve
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25
What does the brachial plexus carry?
Somatic motor fibres to the skeletal muscles of the upper limb Sympathetic fibres to the smooth muscles (sweat glands etc) Somatic sensory from the skin of the upper limb
26
Musculocutaneous
Muscles of the anterior arm
27
Median
Majority of muscles of anterior forearm and the thenar eminence muscles
28
Ulnar
majority of muscles in the hand (except thenar eminence) and 1.5 muscles of the anterior forearm
29
Axillary
Deltoid muscle
30
Radial
Muscle of posterior arm and posterior forearm
31
"badge patch"
axillary nerve supplies this
32
Where does a SLAP tear occur?
Occurs where the biceps tendon anchors to the labrum
33
Origin and insertion of teres minor?
Origin: dorsal surface of lateral border of the scapula Insertion: greater tuberosity of humerus
34
Innervation of teres minor?
Axillary nerve: C5/C6
35
Function of teres minor?
Externally rotates the arm
36
Lateral epicondyle
Site of insertion for all of the extensor muscles of the forearm
37
The extensor compartment is the _____ compartment?
The extensor compartmen of the foreaem is the dorsal compartment
38
The flexor compartment of the forearm is the _____ compartment?
The flexor compartment is the volar compartment
39
TFCC
Triangular fibrocartilage complex
40
Thenar muscles of the hand?
Abductor pollicis brevis Flexor pollicis brevis Opponens pollicis
41
Innervation of the thenar muscles of the hand?
Median nerve
42
Name a hypothenar muscle
Abductor digiti minimi
43
Innervation of the hypothenar muscles?
Ulnar nerve
44
Interossei muscles?
Move the fingers | ALL flex at the MCPJ's and extend at the IPJs
45
Innervation of the interossei muscles?
Ulnar nerve
46
Dorsal interossei muscles
Dorsal abduct the fingers at the MCPJ's (DAB)
47
Palmar interossei muscles?
Palmer adduct the fingers at the MCPJs (PAD)
48
Lumbrical muscles
One for each finger Crucial to finger movement Link extensor and flexor tendons Innervation: Lateral x 2: Median n. Medial x 2: Ulnar n.
49
Flexor digitorum superficialis?
Extrinsic flexor muscle of the fingers | Flexes the finger at the PIPJ's
50
Innervation of flexor digitorum superficialis?
Median nerve | C7, C8, T1
51
Flexor digitorum profundus?
Extrinsic flexor muscle of the fingers | Flexes at the DIPJs
52
Innervation of flexor digitorum profundus?
Median n. via anterior interosseus (C8, T1) – 4th & 5th digits Ulnar n. (C8, T1) – 2nd & 3rd digits
53
Which annular ligaments prevent bowstringing of the finger?
A2 and A4
54
Which annular ligament is commonly involved in trigger finger?
A1
55
Where do A1, A3 and A5 overlie?
The MCP, PIP and DIP respectively
56
Brachial artery divides to give which arteries?
Radial and ulnar
57
Median nerve tests for muscular supply and cutaneous sensation?
Median nerve Muscular supply: (Flexors of the forearm) LOAF muscles TEST: Abductor pollicis brevis Cutaneous sensation: Radial 3 ½ digits TEST: Tip of index finger and base of thenar muscles
58
Ulnar nerve tests for muscular supply and cutaneous sensation?
Muscular supply: Small muscles of the hand – intrinsics TEST: Adductor digiti minimi Abductor indicis Cutaneous sensation: Ulnar 1 ½ digits TEST: Dorsum and volar aspects of little finger
59
Radial nerve tests for muscular supply and cutaneous sensation?
Muscular supply: Small muscles of the hand – intrinsics TEST: Adductor digiti minimi Abductor indicis Cutaneous sensation: Ulnar 1 ½ digits TEST: Dorsum and volar aspects of little finger
60
Cubital tunnel
The ulnar nerve passes posterior to the medial epicondyle | It then passes through a tunnel formed by the two heads of the flexor carpi ulnaris, and underneath the ARCUATE ligament
61
The brachial plexus
The brachial plexus is a network of the ventral rami of the lower four cervical nerves and first thoracic nerve roots (C5-C8, T1)
62
Real Texans Drink Cold Beer
``` Roots (5) Trunks (3) Division (3 anterior, 3 posterior) Cords (3) Branches (5) ```
63
MARMU
``` Musculocutaneous Axillary Radial Median Ulnar ```

ANATOMY DADDAY (2 decks)

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