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-Anatomy > Upper limb - Forearm > Flashcards

Upper limb - Forearm Flashcards

1
Q

Where does the cephalic vein arise?

A

Lateral end of dorsal venous arch

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2
Q

Where does the basilic vein arise?

A

Medial end of dorsal venous arch

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3
Q

Where does the median cubital vein shunt blood from adn to?

A

Shunts from the cephalic to the basilic

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4
Q

What type of joints are the radio-ulnar joints?

A

Synovial pivot joints

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5
Q

What muscles cause supination of the radio-ulnar joints?

A

Supinator

Biceps brachii

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6
Q

What muscles cause pronation of the radio-ulnar joints?

A

Pronator teres

Pronator quadratus

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7
Q

What is the most powerful supinator of the forearm?

A

Biceps brachii

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8
Q

What is the most powerful pronator of the forearm?

A

Pronator teres

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9
Q

What are the accessory muscles to supination of the forearm?

A

Extensor pollicus longuis

Extensor carpi radialis longus

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10
Q

What are the accessory muscles to pronation of the forearm?

A

Flexor carpi radialis

Palmaris longus

Brachioradialis

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11
Q

What are articulating surfaces of the proximal radio-ulnar joint?

A

Radial head

Radial notch of the ulna

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12
Q

What are the Articulating Surfaces in the Distal Radio-Ulnar Joint?

A

Ulnar notch of radius Ulnar head

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13
Q

What are the actions of the anterior compartment of the forearm?

A

Wrist flexion Finger flexion Forearm Pronation

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14
Q

What muscles form the superficial group of the anterior forearm?

A

Pronator teres Flexor carpi radialis Flexor carpi ulnaris Palamris longus

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15
Q

Where do the superficial anterior muscle group all originate from?

A

By the common flexor tendon to the medial epicondyle

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16
Q

What is the innervation of pronator teres?

A

Median nerve

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17
Q

What is the action of flexor carpi radialis on the wrist joint?

A

Flexion Abduction

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18
Q

What is the action of flexor carpi ulnaris on the wrist joint?

A

Flexion Adduction

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19
Q

What is the action of palmaris longus on the wrist joint?

A

Flexion

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20
Q

What is the innervation of flexor carpi ulnaris?

A

Ulnar nerve

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21
Q

What is the innervation of flexor carpi radialis?

A

Median nerve

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22
Q

What is the innervation of palmaris longus?

A

Median nerve

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23
Q

What is the action of the brachioradialis on the elbow?

A

Flexion

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24
Q

What nerve innervated the brachioradialis?

A

Radial nerve Note - exception, normally only extensor compartment

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25
What are the attachments of flexor carpi radialis?
Medial condyle Base of metacarpal 2 + 3
26
What are the attachments of flexor carpi ulnaris?
Medial condyle + ulna Pisiform carpal bone
27
What are the attachments of palmaris longus?
Medial condyle Flexor Retinaculum of the Wrist
28
What are the attachments of pronator teres?
Medial condyle Coronoid process of ulna Lateral mid-shaft of radius
29
What muscle makes up the intermediate anterior forearm group?
Flexor digitorum superficialis
30
Where do the tendons of the flexor digitorum superficialis attach?
Middle phalanges 2-5
31
What are the actions of flexor digitorum superficialis?
Wrist flexion Metacarpophalangeal flexion Proximal Interphalangeal flexion
32
Which nerve innervated flexor digitorum superficialis?
Median nerve C5-T1
33
What muscles make up the deep group of the anterior forearm?
Flexor digitorum profundus Flexor pollicis longus Pronator quadratus
34
What bone is the flexor digitorum profundus in close proximity to?
Ulna
35
What bone is the palmaris longus in close proximity to?
Radius
36
What bones is the pronator quadratus in close proximity to?
Ulna Radius
37
Where does the flexor digitorum profundus originate?
Ulna Associated with interosseous membrane
38
Where does the flexor digitorum profundus insert?
Distal phalanges 2-5
39
What is the action of flexor digitrum profundus on the wrist joint?
Flexion
40
What is the action of flexor digitrum profundus on the metacarpophalangeal joint?
Flexion
41
What is the action of flexor digitrum profundus on the interphalangeal joints?
Flexion
42
What is the innervation of the flexor digitorum profundus?
Ulnar nerve (medial portions digits 4-5) Median nerve (lateral portion 2-3)
43
What is the innervation of flexor pollicus longus?
Median nerve C8-T1 Anterior interosseous branch
44
Whre does flexor pollicis longus attach?
Anterior surface of radius/interosseous membrane Base of distal phalanx of thumb
45
What are teh actions of flexor pollicus longus?
Flexion of the thumb Both interphalangeal joint and metocarpophlangeal joints
46
What is the innervation of pronator quadratus?
Median nerve C8-T1 Anterior interoseous branch
47
What are the attachemnts for the pronator quadratus?
Anterior surfaces of ulna and radius
48
What is the relationship between the median nerve and brachial artery?
The median nerve is medial to the brachial artery
49
What compartment does the median nerve supply?
Anterior compartment of the forearm
50
What muscles in the forearm are not supplied by the median nerve?
Flexor carpi radialis Medial half of the flexor digitorum profundus
51
What are the segmental root values of the median nerve?
C5-T1
52
What two muscles in the forearm does the median nerve travel between?
Flexor digitorum superficialis + profundus
53
How does the median nerve enter the hand?
Through the carpal tunnel under the flexor retinaculum
54
What is the relationship between the ulnar nerve and artery?
The ulnar nerve is medial to the ulnar artery
55
What are the two terminal branches of the brachial artery?
Ulnar Radial arteries
56
Where does the brachial artery divide?
Close to the head of the radius near the cubital fossa
57
How does the ulnar nerve enter the forearm?
Passes between the heads of flexor carpi radialis
58
Which muscles in the anterior compartment of the forearm are innervated by the ulnar nerve?
Flexor carpi ulnaris Medial half of the flexor digitorum profundus
59
What is the segmental root value of the ulnar nerve?
C8 + T1
60
What is teh action of extensor pollicus longus?
Extension of thumb ( all joints) Metacarpophalangeal joint of thumb extension Carpometacarpal of thumb extension Interphalangeal joint extension
61
What is the action of abductor pollicus longus?
Abduction of thumb
62
What is the action of extensor pollicus brevis?
Extension of thumb through: Metacarpophalangeal joint of thumb extension Carpometacarpal of thumb extension
63
What is the origin of abductor pollicus longus?
Interosseous membrane Posterior surface of radius + ulna
64
What is the attachment of abductor pollicus longus?
Lateral part of metacarpal 1 base
65
What is the origin of extensor pollicus longus?
Posterior surface of ulna Interosseous membrane
66
What is the origin of extensor pollicus brevis?
Posterior surface of radius Interosseous membrane
67
What is the atachment of extensor pollicus longus?
Distal phalanx of the thumb
68
What is the attachment of extensor pollicus brevis?
Base of proximal phalanx of thumb
69
What is the action of the supinator?
Supination of forearm
70
What is the innervation os the supinator?
Radial nerve
71
What is the origin of the supinator muscle?
Lateral epicondyle of humerus (lateral head) Posterior surface of ulna (medial head)
72
What is the attachment of the supinator muscle?
Posterior surface of radius
73
What are the two branches of the radial nerve?
Deep (posterior interosseous) Superficial
74
What nerve innervates the posterior compartment of the forearm?
The radial nerve
75
What are the three functional groups in the posterior compartment of the forearm?
Extension of the medial 4 digits Extension/abduction of thumb Extension of wrist (along with abduction/adduction)
76
What three muscles in the posterior compartment of the forearm extend the wrist?
Exstensor carpi radialis longus Extensor carpi radialis brevis Extensor carpi ulnaris
77
Which three muscles extend the medial 4 digits?
Extensor digitorum Extensor indicis Extensor digiti minimi
78
What is the action of extensor carpi radialis (longus+ brevis) on the wrist joint?
Extend Abduct
79
Where does the enxtensor carpi radialis longus originate from?
Supracondylar Ridge of the Humerus
80
Where does extensor carpi radialis longus attach to?
Metacarpal 2/3
81
Where does extensor carpi radialis brevis attach to?
Metacarpal 2/3
82
Where does extensor carpi radlias brevis originate from?
Lateral epicondyle of humerus
83
Where does extensor carpi ulnaris originate from?
Lateral epicondyle of humerus
84
Where does extensor carpi ulnaris attach to?
Metacarpal 5
85
Where does extensor digitorum originate from?
Lateral epicondyle of humerus
86
Where does extensor digitorum attach?
Extensor hood of medial 4 digits
87
What is the action of extensor digitorum?
Extension of 4 digits at metacarpophalangeal joint + interphalangeal joint
88
What is the innervation of extensor digitorum?
Radial nerve
89
What is the innervation of extensor carpi radlias brevis?
Radial nerve
90
What is the innervation of extensor carpi radlias longus?
Radial nerve
91
What is the innervation of extensor carpi ulnaris?
Radial nerve

-Anatomy (34 decks)

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