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Anatomy > Anterior of Arm, Forearm, Wrist and Hand > Flashcards

Anterior of Arm, Forearm, Wrist and Hand Flashcards

(80 cards)

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1
Q

The proximal aspect of the humerus articulates with the … of the scapula forming the … joint

A

Glenoid fossa

Glenohumeral joint

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2
Q

Distally, at the elbow joint, the … of the humerus articulates with the … of the radius

A

Capitulum

Head

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3
Q

Distally, at the elbow joint, the … of the humerus articulates with the … of the ulna

A

Trochlea

Trochlear notch

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4
Q

The ulna lies … and parallel to the radius

A

Medially

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5
Q

Olecranon is a large projection of the ulna which can be palpated as the tip of the elbow. The … attaches to its superior surface

A

Triceps brachii

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6
Q

The trochlear notch is formed by the … and …

A

Olecranon, coronoid process

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7
Q

The radial notch of the ulna is located on the … surface of the … and articulates with the head of the radius

A

Lateral

Trochlear notch

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8
Q

The ulna tuberosity is a roughening immediately distal to the … where the … attaches

A

Coronoid process

Brachialis

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9
Q

At the wrist the radius articulates with the …

A

Carpal bones

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10
Q

Name the carpal bones

A

Scaphoid, Lunate, Triquetrium, Pisiform, Trapezium, Trapezoid, Capitate, Hamate

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11
Q

Each finger has … metacarpal and … phalanges

Except for the thumb which has …

A

1, 3

2 phalanges

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12
Q

The joint capsule of the elbow is strengthened by ligaments medially and laterally. Name them

A

Annular ligament
Ulnar collateral ligament
Radial collateral ligament

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13
Q

The radial collateral ligament is on the … side of the joint, extending from the … and blending with the …

A

Lateral
Lateral epicondyle
Annular ligament

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14
Q

The ulnar collateral ligament is on the … side of the joint, extending from the …. and attaching to the …

A

Medial
Medial epicondyle
Coronoid process and olecranon (of ulna)

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15
Q

The arterial supply of the upper limb is delivered via five main vessels. List them proximally to distally

A 
Subclavian 
Axillary
Brachial
Radial
Ulnar
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16
Q

The 3 muscles in the anterior compartment of the upper arm

A

Biceps brachii
Coracobrachialis
Brachialis

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17
Q

What is the innervation of the 3 muscles in the anterior compartment of the upper arm

A

Musculocutaneous nerve

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18
Q

What is the arterial supply of the 3 muscles in the anterior compartment of the upper arm

A

Muscular branches of the brachial artery

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19
Q

Origins and attachments of biceps brachii

A

Long head originates from the supraglenoid tubercle of the scapula
Short head originates from from the coracoid process of the scapula
Both heads insert distally into the radial tuberosity

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20
Q

Function of biceps brachii

A

Supination of the forearm

It also flexes the arm at the elbow and shoulder

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21
Q

Origins and attachments of coracobrachialis

A

Originates from the coracoid process of the scapula

Attaches to medial side of the humerus at the level of the deltoid tubercle

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22
Q

Function of coracobrachialis

A

Flexion of the arm at the shoulder and weak adduction

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23
Q

Origins and attachments of brachialis

A

Originates from the medial and lateral surfaces on humeral shaft
Inserts in the ulna tuberosity

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24
Q

Function of brachialis

A

Flexion at the elbow

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25
Name the 4 superficial muscles in the anterior compartment of the forearm
Flexor carpi ulnaris Palmaris longus Flexor carpi radialis Pronator teres
26
All 4 superficial muscles in the anterior compartment of the forearm originate from a common tendon which arises from the ...
Medial epicondyle of the humerus
27
Origin and attachments of flexor carpi ulnaris
Originates from the medial epicondyle and has a long origin from the ulna Attaches to the pisiform carpal bone
28
Action of the flexor carpi ulnaris
Flexion and adduction at the wrist
29
Innervation of the flexor carpi ulnaris
Ulnar nerve
30
Origin and attachments of palmaris longus
Originates from the medial epicondyle | Attaches to the flexor retinaculum of the wrist
31
Action of palmaris longus
Flexion at the wrist
32
Innervation of palmaris longus
Median nerve
33
Origin and attachments of flexor carpi radialis
Originates from the medial epicondyle | Attaches to the base of metacarpals II and III
34
Action of flexor carpi radialis
Flexion and abduction at the wrist
35
Innervation of flexor carpi radialis
Median nerve
36
Origins and attachments of pronator teres
Originates from both the medial epicondyle and the coronoid process of the ulna Attaches laterally to the mid shaft of the radius
37
Action of pronator teres
Pronation of the forearm
38
Innervation of pronator teres
Median nerve
39
Name the only intermediate muscle in the anterior compartment of the forearm
Flexor digitorum superficialis
40
Origins and attachments of flexor digitorum superficialis
One head originates from the medial epicondyle of the humerus, the other from radius The muscle splits into 4 tendons at the wrist which go through the carpal tunnel and attach to the middle phalanges of the 4 fingers
41
Action of the flexor digitorum superficialis
Flexes the metacarpophalangeal joints and proximal interphalangeal joints at the 4 fingers Flexes at the wrist
42
Innervation of flexor digitorum superficialis
Median nerve
43
Name the 3 deep muscles in the anterior compartment of the forearm
Flexor digitorum profundus, flexor pollicis longus and pronator quadratus
44
Origins and attachments of flexor digitorum profundus
Originates from the ulna and associated interosseous membrane The muscle splits into 4 tendons at the wrist which go through the carpal tunnel and attach to the distal phalanges of the 4 fingers
45
Action of flexor digitorum profundus
Flexion at the distal interphalangeal joints Flexion at the metacarpophalangeal joints Flexion at the wrist
46
Innervation of flexor digitorum profundus
Medial half is innervated by the ulnar nerve, lateral half is innervated by the anterior interosseous branch of the median nerve
47
Origins and attachments of flexor pollicus longus
Originates from the anterior surface of the radius and surrounding interosseous membrane Attaches to the base of the distal phalanx of the thumb
48
Action of flexor pollicus longus
Flexes the interphalangeal joint and metacarpophalangeal joint of the thumb
49
Innervation of flexor pollicus longus
Median nerve
50
Origins and attachments pronator quadratus
Originates from the anterior surface of the ulna | Attaches to the anterior surface of the radius
51
Action of pronator quadratus
Pronates the forearm
52
Innervation of pronator quadratus
Anterior interosseous branch of the median nerve
53
The ... muscles are 3 short muscles located at the base of the thumb. The muscle bellies form a bulge known as the ... eminence
Thenar
54
All 3 thenar muscle are innervated by ...
The median nerve
55
Origins and attachments of opponens pollicis
Originates from the tubercle of the trapezium and the associated flexor retinaculum Attaches to the lateral margin of the metacarpal of the thumb
56
Action of opponens pollicis
Opposes the thumb
57
Origins and attachments of abductor pollicis brevis
Originates from the tubercles of the scaphoid and trapezium and the associated flexor retinaculum Attaches to the lateral side of the proximal phalanx of the thumb
58
Actions of abductor pollicis brevis
Abducts the thumb
59
Origins and attachments of flexor pollicis brevis
Originates from the tubercle of the trapezium and from associated flexor retinaculum Attaches to the base of the proximal phalanx of the thumb
60
Action of flexor pollicis brevis
Flexes the metacarpophalangeal joint of the thumb
61
The hypothenar muscles are similar to the thenar muscles in both name organisation but lie on the ... side of the palm, they produce the hypothenar eminence at the base of ...
Medial | The little finger
62
Innervation of all 3 hypothenar muscles
Ulnar nerve
63
Origin and attachments of opponens digiti minimi
Originates from hook of hamate and associated flexor retinaculum Attaches to the medial margin of metacarpal V
64
Action of opponens digiti minimi
Rotates the metacarpal of the little finger towards the palm (opposition)
65
Origin and attachments of abductor digiti minimi
Originated from pisiform and the tendon of the flexor carpi ulnaris Attaches to the base of the proximal phalanx of the little finger
66
Action of abductor digiti minimi
Abduction of little finger
67
Origins and attachments of flexor digiti minimi brevis
Originates from the hook of hamate and adjacent flexor retinaculum Attaches to the base of the proximal phalanx of the little finger
68
Action of flexor digiti minimi brevis
Flexes the metacarpophalangeal joint of the little finger
69
There are four ... in the hand, each associated with a finger
Lumbricals
70
Origin and attachment of the lumbricals
Originates from a tendon of the flexor digitorum profundus | Inserts into the extensor hood
71
Actions of the lumbricals
Flex at metacarpophalangeal joint and extend at interphalangeal joint of each finger
72
Innervation of the lumbricals
Lateral two- Median nerve | Medial two- Ulnar nerve
73
The ... are a group of 3 (sometimes 4) paired intrinsic muscles between the metacarpals
Palmar interossei
74
Origin and attachments of the palmar interossei muscles
Originate from a medial or lateral surface of a metacarpal | Inserts into extensor hood
75
Actions of the palmar interossei muscles
Adducts the fingers at the metacarpophalangeal joint
76
Innervation of the palmar interossei muscles
Ulnar nerve
77
The ... is a large triangular muscle with two heads. The radial artery passes through the space between the two heads forming the ...
Adductor pollicis | Deep palmar arch
78
Origins and attachments of the adductor pollicis
One head originates from metacarpal III, the other from the capitate and adjacent areas of metacarpals II and III Attaches into the base of the proximal phalanx of the thumb
79
Actions of adductor pollicis
Adduction of the thumb
80
Innervation of adductor pollicis
Ulnar nerve

Anatomy (11 decks)

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