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Musculo-Skeletal > Muscles of the Upper Limb > Flashcards

Muscles of the Upper Limb Flashcards

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1
Q

What is the insertion of the FDS?

A

Four tendons, one in each middle phalanx

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2
Q

What is the insertion of the supraspinatus muscle?

A

Superior facet of the greater tubercle of the humerus

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3
Q

What is the attachment of the long head of the triceps?

A

Infraglenoid tubercle

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4
Q

What is the origin of flexor pollicis longus?

A

Shaft of radius and adjacent interosseous membrane

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5
Q

Why is their a bare patch in the synovial sheaths of the FDS and FDP tendons?

A

That space gives rise to the lumbrical muscles

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6
Q

What happens when both the ECRL and B, and FCR contract?

A

Radial deviation

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7
Q

Which flexors on the forearm insert onto metacarpals?

A

Flexor carpi radialis

Flexor carpi ulnaris

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8
Q

What are the names of the muscles that make up the hypothenar muscle?

A

(… One For All)

Opponens digiti minimi

Flexor digiti minimi

Abductor digiti minimi

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9
Q

What is the origin of the coracobrachialis muscle?

A

Coracoid process of the scap

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10
Q

What are the muscles that make up the thenar muscle?

A

(All For One And…)

Abductor pollicis brevis

Flexor pollicis brevis

Opponens pollicis

Adductor pollicis``

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11
Q

What movements does the teres major allow?

A

Adduction

Medial rotation

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12
Q

What movement does the brachioradialis muscle allow?

A

Flexion of elbow

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13
Q

What makes up the superficial palmar arterial arch?

A

It’s started by the ulnar artery and finished by the radial artery

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14
Q

What is the origin and course of the long head of the bicep?

A

Originates in the supraglenoid tubercle

Traverses over the head of the humerus, within the capsule and out through the bicepital groove

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15
Q

What is the insertion of the deltoid?

A

Deltoid tuberosity on humerus

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16
Q

What are the borders of the palmar aponeurosis?

A

Flexor aproneurosis proximally

Slips into the bases of the each of the 4 fingers

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17
Q

Describe the insertion of the flexor carpi ulnaris

A

Pisiform bone is in its tendon on its way to the 5th metacarpal

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18
Q

Which of the lumbrical muscles are dual bellied?

A

3rd and 4th fingers

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19
Q

What is the attachment of the lateral head of the tricep?

A

Linear attachment on the posterior shaft of the humerus

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20
Q

Where do the extensors of the thumb originate?

A

Shaft of ulnar and adjacent interosseous membrane

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21
Q

What is the course of the lumbrical muscle?

A

From the FD tendon on the metacarpals

Around the radial side of the 4 fingers

Onto the tendon of the ED

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22
Q

What bones make up the pectoral girdle?

A

Scapula and Clavicle

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23
Q

What are the origins of the deltoid?

A

Spine of the scapula

Acromium

Clavicle

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24
Q

How does the pattern of FDS and FDP’s tendons differ in their traversal of the carpal tunnel

A

FDP’s tendon line is a line of 4, deep to the tendons of FDS which lie in pairs, 2 ontop of each other.

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25
What divides the extensor tendons?
Divisions that come down from the extensor retinaculum
26
What type of sheaths by the FDS and FDP have in the hand?
Synovial and fibrous
27
What is the insertion of the pectoralis minor?
Coracoid process
28
What are the muscle attaching the pectoral girdle to thoracic wall anteriorly?
Pectoralis major Pectoralis minor Subclavius Serratus Anterior
29
Where does the brachioradialis muscle insert?
Styloid process of the radius
30
What does the adductor pollicis muscle share a plane with?
The deep neurovascular plane
31
Which nerve supplies the deltoid muscle?
Axillary
32
What are the three muscles of the deep posterior compartment of the forearm?
Anconeus Supinator Extensor indicis
33
Describe the EDM muscle belly?
It shares its proximal belly with ED
34
What is the function of the pectoralis minor?
Stabilise scapula Accessory muscle of respiration
35
What is the origin of the teres major?
Posterior surface of the inferior angle of the scapula
36
7 layers of the palmar aspect of the hand, go!
Skin and palmaris brevis Palmar aponeurosis Thenar and hypothenar muscle Neurovascular plane Tendon of the distal flexors and lumbricals Adductor pollicis and neurovascular plane Interosseous muscles and metacarpals
37
What is the name of the deepest head of the triceps?
Medial head
38
What movements happen at the elbow?
Flexion/Extension Supernation/Pronation
39
What are the muscles that attaches the scapula to the humerus?
Teres major Deltoid Supraspinatus Infraspinatus Subscapularis Teres minor
40
What are the muscles that connect the pectoral girdle to trunk posteriorly?
Trapezius Rhomboids Latissimus dorsi Levator scapulae
41
Which fibres of the pectoralis major overlie the other fibres?
Clavicular fibres overlie the sternocostal
42
What are the 5 muscles of the superficial, flexor compartment of the forearm?
Pronator teres Flexor carpi radialis Palmaris longus Flexor digitorum superficialis Flexor carpis ulnaris
43
Where do the hypothenar and thenar muscle arise from?
Flexor retinaculum and carpal bones
44
What are the attachment of the flexor retinaculum?
**S**caphoid **T**rapezium Hook **o**f Hamate **P**isiform
45
How can you tell f/e from ab/add of the thumb?
F/E is in the same plane as the hand
46
What happens when the long thoracic nerve is damaged?
Winged scapula
47
Where does the serratus anterior run?
Beneath the scapula
48
What is the insertion of the infraspinatus muscle?
Middle facet of the greater tubercle of the humerus
49
How often is the extensor indicis identified?
Rarely
50
What happens when ECU and FCU both contract?
Ulnar deviation
51
What is the insertion of the subscapulae muscle?
The lesser tubercle of the humerus
52
What is the extra origin of the FCU?
Subcutaneous border of the ulna
53
What is the insertion of FPL?
Distal phalanx of the thumb
54
Where does the medial head of the triceps originate?
Posterior shaft of the humerus
55
When does the biceps supinate?
When the elbow is flexed
56
What movement does the palmar interosseous muscle allow?
Palmar interosseous muscle ADduct (PAD)
57
What is the origin of the adductor pollicis?
Shaft of the 3rd metacarpal
58
Which nerves supplies the serratus anterior?
Long thoracic nerve
59
What is the insertion of the brachialis muscle?
Coranoid process of the ulnar
60
Where does the pectoralis major muscle insert?
Lateral lip of the bicepital groove
61
What is the extra origin of the FDS?
Radius
62
Around which side of the phalanges does the lumbrical tendon run?
Radial side
63
What is the configuration of the tendons of the FDS?
Tendons of the 3rd and 4th fingers ontop of the tendons of the 2nd and 5th fingers.
64
What is the insertion of the teres major?
Medial lip of the intertubercular sulcus of the humerus
65
How can you find the superficial palmar arterial arch?
It runs on the distal plane of the out stretched thumb
66
What is the course of the anconeus muscle?
Ula to the lateral epicondyle
67
Where does the FDS lie in relation to the FCU and FCR?
Underneath
68
Which superficial flexors have more than one origin?
Pronator teres Flexor digitorum superficialis Flexor carpi ulnaris
69
Name the nine superficial extensors of the forearm
Brachioradialis Extensor carpi radialis longus Extensor carpi radialis brevis Extensor carpi ulnaris Extensor digitorum Extensor digiti minimi Extensor pollicis longus Extensor pollicis brevis Abductor pollicis longus
70
What is the name of the two superficial heads of the triceps?
Lateral Long
71
What is the function of the serratus anterior?
Protraction the scapula
72
What is the function of the subclavius?
Stabilise the clavicle
73
Which muscle initiates abduction of the humerus?
Supraspinatus
74
Which superficial extensors originate at the lateral supracondylar ridge?
Brachioradialis Extensor carpi radialis longus
75
Are there more dorsal or palmar interosseous muscles?
Dorsal
76
Where does the triceps insert?
Olecranon of ulnar
77
What is the insertion and origin of the subclavius?
Origin: 1st Rib Insertion: Inferior surface of clavicle
78
What does the short head of the bicep originate?
Coracoid process of scap
79
T/F the palmar aponeurosis covers the hypothenar muscle but not the thenar muscle
False, it doesn't cover either of them
80
What is the origin of the FDP?
Shaft of ulna and adjacent interosseous membrane
81
What is the origin of the serratus anterior?
Lateral aspect of ribs 1-8
82
What movement do the dorsal interosseous muscle allow?
Dorsal interosseous muscles ABduct (DAB)
83
Describe the palmar longus?
It has a small belly and long tendon \> heading towards extinction
84
What is the insertion of the teres minor?
The inferior facet of the greater tubercle of the humerus
85
Where does ECRL and B insert?
2nd and 3rd metacarpals posteriorly
86
Which superficial extensors originate from the lateral epicondyle?
Extensor carpi radialis brevis Extensor digitorum Extensor digiti minimi Extensor carpi ulnaris
87
What is best way to look for the supinator muscle?
Look for the muscle that obsures the proximal shaft of the radius
88
What is the insertion of ECU?
5th metacarpal
89
What runs between the two heads of the supinator?
The neural supply of the posterior compartment of the forearm
90
Which muscles tendons run between the superficial palmar arterial arch and the adductor pollicis?
The FDS and FDP tendons
91
Where do the interosseous muscle insert?
ED tendon
92
Where does the FCR insert?
2nd and 3rd metacarpals
93
Which muscle laterally rotate the humerus?
Infraspinatus Teres minor
94
What are the major actions of the pectoralis major?
Horizontal adduction Medial rotation of the humerus Accessory muscle of respiration
95
What is the course of the EPL's tendon?
It goes the "long" way - through the extensor retinaculum and back to the thumb
96
What are the 3 deep muscles in the flexor compartment?
Pronator quadratus Flexor digitorum profundus Flexor pollicis longus
97
T/F Dupuytren's contractor is due to a thickening of the deep flexor tendons
False, it's a thickening of the palmar aponeurosis
98
Where the origins of the pectoralis major?
Clavicular Sternocostal
99
Where does the serratus anterior insert?
Vertebral border of the scapula
100
What are the muscles of the anterior compartment of the arm?
Coracobrachialis Biceps Brachialis
101
What is the origin of FDS
Medial epicondyle Both ulna and radius
102
What is the origin of the pectoralis minor?
Ribs 3-5
103
What are the movement of the thumb?
Flexor/extend Abduct/adduct Opposition/reposition
104
What is the common origin of the flexors of the forearm?
Medial epicondyle
105
What is the insert of the coracobrachialis?
Mid humerus
106
What is the insertion of FDP?
Distal palanx of 4 fingers - tendons bursts through the tendon of the FDS
107
What is the origin of the brachialis muscle?
Ant aspect of the distal half of the shaft of the humerus
108
Which muscles form the medial border of the forearm?
FCU ECU
109
What movement do the lumbrical muscles allow?
Wave bye bye
110
Where does pronator teres insert?
Mid point of the shaft of the radius
111
Where does the ED insert?
Tendons for fingers 2 to 4 posteriorly, each finger gets 3 tendons, one for each phalanx

Musculo-Skeletal (7 decks)

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