Anatomy Flashcards

1
Q

Gluteal muscles

A

Gluteus maximus
Gluteus medius
Gluteus minimus

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2
Q

Gluteus maximus

A

Origin: Ilium
Insertion: Gluteal tuberosity of the femur
Innervation: Inferior gluteal nerve
Function: Extension and lateral rotation of the hip joint, supports the knee by contributing to the iliotibial tract

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3
Q

Gluteus medius and minimus

A

Origin: Ilium
Insertion: Greater trochanter of the femur
Innervation: Superior gluteal nerve
Function: Abduction and medial rotation of the hip joint

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4
Q

Muscles of the anterior compartment of the thigh (extensors)

A

Rectus femoris
Vastus medialis
Vastus lateralis
Vastus intermedialis

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5
Q

Muscles of the posterior compartment of the thigh (flexors)

A

Biceps femoris
Semitendinous
Semimembranosus
Also involved in medial and lateral rotation during flexion

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6
Q

Muscles of the medial compartment of the thigh (adductors)

A
Gracilis
Pectineus
Adductor longus
Adductor brevis
Adductor magnus
Obturator externus
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7
Q

Small gluteal muscles

A
Piriformis
Gemellus superior
Gemellus inferior
Obturator internus
Quadratus femoris

Function: stabilises the hip, lateral rotation of extended thigh

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8
Q

Rectus femoris

A

Origin: ASIS and ilium above acetabulum
Insertion: Quadriceps tendon
Innervation: Femoral nerve
Function: Flexes thigh at hip and extends leg at knee

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9
Q

Vastus medialis

A

Origin: Medial side of femur
Insertion: Quadriceps tendon and medial border of patella
Innervation: Femoral nerve
Function: extends the leg at knee joint

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10
Q

Vastus intermedius

A

Origin: Anteriolateral femur
Insertion: Quadriceps tendon
Innervation: Femoral nerve
Function: Extension of the knee

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11
Q

Vastus lateralis

A

Origin: Greater trochanter of femur
Insertion: Quadriceps tendon
Innervation: Femoral nerve
Function: Extension of the knee

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12
Q

Femoral nerve

A

L2-4
Motor branch supplies the anterior muscle compartment
Sensory branch supplies the anterior thigh, knee and medial side of leg and foot via the saphenous nerve

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13
Q

Obturator nerve

A

L2-4
Motor: Supplies the medial compartment of the thigh
Sensory: skin over medial thigh

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14
Q

Sciatic nerve L4-S3

A

Motor: Posterior compartment of the thigh
Sensory branch: skin over leg and foot
Divides into the tibial and common fibular nerve within the popliteal fossa

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15
Q

Common fibular nerve

A

Divides into the superficial and deep fibular nerve

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16
Q

Biceps brachii

A

Long head origin: supraglenoid tubercle
Short head origin: Coracoid process (conjoint tendon)
Insertion: Radial tuberosity
Innervation: musculocutaneous nerve
BS: brachial artery
Function: Flexion of shoulder and elbow joint

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17
Q

Coracobrachialis

A

Origin: Coracoid process (conjoint tendon)
Insertion: Medial aspect of humeral shaft
Innervation: musculocutaneous nerve
BS: brachial artery
Function: Flexion of shoulder

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18
Q

Brachialis

A
Origin: Distal part of the anterior humerus
Insertion: Ulnar tuberosity
Innervation: musculocutaneous nerve
BS: brachial artery
Function: Flexion of elbow joint
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19
Q

Brachioradialis

A
Origin: Lateral supracondylar ridge
Insertion: Radial styloid process
Innervation: radial nerve
BS: radial artery
Function: Flexion of elbow when partially pronated, supination and pronation of radioulnar joint by 90 degrees
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20
Q

Triceps brachii

A

Origin:
Long head = infraglenoid tubercle
Lateral head = posterior aspect of humerus above radial groove
Medial head = posterior aspect of humerus below radial groove
Insertion: Olecranon process of ulna
Innervation: radial nerve
Function: Extension of shoulder and elbow joint, adduction of arm

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21
Q

Lateral cord

A

Gives rise to lateral pectoral nerve that innervate the pectoral muscles (major and minor)
Forms lateral part of median nerve, and musculocutaneous nerve
Terminates as the lateral cutaneous nerve of the forearm supplying the ventral and dorsal aspect of the lateral forearm skin (sensory function)

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22
Q

Medial cord

A

Forms medial pectoral nerve which innervates the pectoral muscles
Forms medial part of median nerve, and ulnar nerve
Ulnar nerve supplies muscles of hand
Median nerve supplies muscles of anterior compartment of forearm
Forms cutaneous nerves of arm and forearm

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23
Q

Posterior cord

A

Forms the radial and axillary nerves
Radial nerve: Supplies posterior aspect of arm and forearm
The axillary nerve supplies teres minor and the deltoid muscles, as well as a small area of skin over the insertion of the deltoid (badge area)

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24
Q

Muscles of anterior compartment of arm

A

Biceps brachii
Coracobrachialis
Brachialis
Responsible for flexion of the arm with the anterior fibres of the deltoid

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25
Q

Muscles of posterior compartment of arm

A

Triceps brachii

Responsible for extension of the arm with the posterior fibres of the deltoid and the latissimus dorsi

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26
Q

Superficial muscles of anterior compartment of forearm

A

Flexor carpi radialis
Flexor carpi ulnaris
Pronator teres
Palmaris longus

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27
Q

Intermediate muscles of anterior compartment of forearm

A

Flexor digitorum superficialis

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28
Q

Deep muscles of anterior compartment of forearm

A

Flexor digitorum profundus
Flexor pollicis longus
Pronator quadratus

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29
Q

Common origin of the flexors of the forearm

A

Medial epicondyle

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30
Q

Clinical significance of medial epicondyle

A

Epicondylitis results in tendon inflammation due to overuse or excessive gripping
Golfer’s elbow

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31
Q

Flexor carpi ulnaris

A

Origin: medial epicondyle
Insertion: Pisiform, hamate and 5th metacarpal
Function: flexion of the wrist and adduction of hand

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32
Q

Flexor carpi radialis

A

Origin: Medial epicondyle
Insertion: 2nd and 3rd metacarpal
Function: Flexion and abduction at the wrist

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33
Q

Palmaris longus

A

Origin: Medial epicondyle
Insertion: Palmar aponeurosis and flexor retinaculum
Innervation = median ner
Function: flexion of wrist

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34
Q

Pronator teres

A

Origin: Medial epicondyle
Insertion: Midshaft of radius
Innervation: median nerve
Function: pronation of forearm

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35
Q

Flexor digitorum superficialis

A

Origin: Medial epicondyle and radius
Insertion: 2nd-5th middle phalanges
Innervation: Median nerve
Function: Flexion of MCP, PIP and wrist joints

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36
Q

Muscles innervated by the median nerve

A

Flexor digitorum superficialis
Flexor carpi radialis
Palmaris longus
Pronator teres

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37
Q

Flexor pollicis longus

A

Origin: Radius and interosseous membrane
Insertion: Base of thumb phalanx
Function: Flexion of thumb at interphalangeal joint and metacarpophalangeal joint, flexion of wrist

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38
Q

Pronator quadratus

A

Origin: Medial aspect of ulna
Insertion: Medial aspect of radius
Innervation: Median nerve
Function: pronation of wrist

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39
Q

Muscles innervated by the ulnar nerve

A

flexor carpi ulnaris muscle, medial one-half of the flexor digitorum profundus muscle, lateral two lumbrical muscles, flexor pollicis brevis muscle

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40
Q

Muscles innervated by the radial nerve

A

Triceps brachii muscle, Brachioradialis muscle, Extensor carpi radialis longus muscle

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41
Q

Superficial/sensory branch of radial nerve

A

The skin of the posterior surface of the arm
The distal skin of the lateral surface of the forearm
The skin of the lateral surface of the dorsum of the hand
The dorsal skin of the lateral two and the half of the fingers

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42
Q

Gait cycle phases

A

Stance phase (60%):

  1. Initial contact
  2. Loading response
  3. Midstance
  4. Terminal stance
  5. Pre-swing

Swing phase (40%):

  1. Initial swing
  2. Mid-swing
  3. Terminal swing
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43
Q

Initial contact

A

Hip flexion
Knee neutral/extended
Ankle dorsiflexion
1st MTPJ dorsiflexion

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44
Q

Loading response

A

Hip flexion
Knee flexion
Ankle plantarflexion
1st MTPJ neutral

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45
Q

Midstance

A

Hip neutral
Knee extension
Ankle neutral
1st MTPJ neutral

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46
Q

Terminal stance

A

Hip extension
Knee full extension
Ankle dorsiflexion
1st MTPJ dorsiflexion/neutral

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47
Q

Pre-swing

A

Hip neutral
Hip flexion
Ankle plantarflexion
1st MTPJ dorsiflexion

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48
Q

Initial-swing

A

Hip neutral/flexion
Knee flexion
Ankle dorsiflexion/neutral
1st MTPJ dorsiflexion/neutral

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49
Q

Mid-swing

A

Hip flexion
Knee flexion
Ankle dorsiflexion
1st MTPJ dorsiflexion

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50
Q

Terminal

A

Hip flexion
Knee neutral/flexion
Ankle dorsiflexion
1st MTPJ dorsiflexion

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51
Q

Which ligaments stabilise the shoulder?

A

Coracoacromial ligament
Acromioclavicular ligament
Coracoclavicular ligament (formed of 2 parts to act as a major stabiliser)
Glenohumeral ligament (superior, middle, and inferior)

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52
Q

Coracoacromial ligament

A

Prevents superior dislocation by supporting the head of the humerus

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53
Q

Movements of the glenohumeral joint

A
Flexion
Extension
Adduction
Abduction
Medial rotation
Lateral rotation
Circumduction
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54
Q

Deltoid

A

Origin: Spine of scapula, acromion, clavicle
Insertion: Deltoid tuberosity of the humerus
Innervation: axillary nerve

Function:
Lateral fibres = abduction of the shoulder 15-90 degrees
Anterior fibres = flexion and medial rotation of shoulder
Posterior fibres = extension and lateral rotation of shoulder

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55
Q

Adductors of the shoulder/arm

A

Latissimus dorsi
Pectoralis major
Rhomboid major and minor
Levator scapulae

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56
Q

Latissimus dorsi

A

Origin: Spinous processes of T7-12 and thoracolumbar fascia
Insertion: Floor of intertubercular groove of humerus
Innervation: thoracodorsal nerve from posterior cord
Function: adduction of the shoulder, extension of the shoulder/arm

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57
Q

Pectoralis major

A

Origin: Clavicle, sternum, costal cartilage
Insertion: Lateral lip of the intertubercular sulcus of the humerus
Innervation: medial and lateral pectoral nerves
Function: adduction and medial rotation of the shoulder

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58
Q

Pectoralis minor

A

Origin: Ribs 3-5
Insertion: Coracoid process of scapula
Innervation: Medial pectoral nerve
Function: protraction of the scapula (Shoulder moves down and scapula moves outwards)

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59
Q

Abduction of the shoulder and arm

A

Trapezius
Deltoid
Serratus anterior

60
Q

Common glenohumeral joint dislocation

A

Anterior dislocation

Humeral head descends inferiorly and ends up anterior

61
Q

Factors increasing stability of glenohumeral joint

A
  1. Coracoacromial arch
  2. Glenohumeral ligaments - prevents superior dislocation
  3. Deepening of glenoid fossa by glenoid labrum
  4. Long heads of biceps and triceps
  5. Tendons of rotator cuff muscles
62
Q

Rotator cuff muscles

A
Supraspinatus
Infraspinatus
Teres minor
Subscapularis
Surround glenohumeral joint to provide more stability (not inferiorly)
63
Q

Supraspinatus

A

Origin: supraspinous fossa of scapula
Insertion: greater tubercle of the humerus
Innervation: suprascapular nerve
Function: Abduction of the arm by 15 degrees (deltoid takes over)

64
Q

Infraspinatus

A

Origin: infraspinous fossa of scapula
Insertion: greater tubercle of the humerus
Innervation: suprascapular nerve
Function: Lateral rotation of arm

65
Q

Teres minor

A

Origin: lateral border of the scapula
Insertion: greater tubercle of the humerus
Innervation: axillary nerve
Function: Lateral rotation of arm

66
Q

Subscapularis

A

Origin: subscapular fossa of scapula
Insertion: lesser tubercle of the humerus
Function: Medial rotation of arm

67
Q

Subscapularis

A

Origin: subscapular fossa of scapula
Insertion: lesser tubercle of the humerus
Function: Medial rotation of arm

68
Q

Teres major

A

Origin: Inferior angle of the scapula
Insertion: Medial lip of bicipital groove

69
Q

Medial rotation of the shoulder

A

Subscapularis

Teres major

70
Q

Lateral rotation of the shoulder

A

Infraspinatus

Teres minor

71
Q

Supraspinatus impingement

A

Repetitive overhead activities e.g. throwing cause the supraspinatus tendon to become inflamed as it rubs against the acromion in the subacromial space (beneath coracoacromial arch)
Rx: physio, steroids, surgery (subacromial decompression or debridement of bone and soft tissue)

72
Q

Supraspinatus impingement

A

Repetitive overhead activities e.g. throwing cause the supraspinatus tendon to become inflamed as it rubs against the acromion in the subacromial space (beneath coracoacromial arch)
Rx: physio, steroids, surgery

73
Q

Scapular anastomosis

A

Formed by subscapular and dorsal scapular arteries from the axillary artery and the thyrocervical and suprascapular arteries from the subclavian artery

74
Q

Nerve supply to shoulder

A

Suprascapular nerve from superior trunk of brachial plexus innervates supraspinatus and infraspinatus
Teres minor and deltoid innervated by the axillary nerve from the posterior cord of the brachial plexus
Subscapularis and teres major innervated by the upper/lower subscapular nerves from the posterior cord
Latissimus dorsi innervated by the thoracodorsal nerve from the posterior cord of the brachial plexus

75
Q

Quadrangular space

A

Teres minor
Teres major
Humerus
Long head of triceps brachii

76
Q

Fracture of surgical neck of humerus

A

May damage axillary nerve and posterior circumflex humeral artery

77
Q

Rotator cuff tears

A

Occur commonly at the supraspinatus and infraspinatus muscles
Rx = arthroscopic rotator cuff repair (Suture anchors inserted and sutures used to reattach the torn tendon to the head of the humerus)

78
Q

Frozen shoulder/Adhesive capsulitis

A

Stiffness, pain, and loss of passive external rotation of shoulder
Loss of passive rotation is hallmark for frozen shoulder as doctor/physio is unable to move joint when examining
Causes inflamed thickened capsule
Non-surgical Rx = hydrodilation to burst capsule or injections
Surgical Rx = capsular release and manipulation

79
Q

Shoulder instability

A

May result in labral tear
Risk factors: contact sports e.g. rugby, hyperlax joints
Surgical Rx = arthroscopic stabilisation for labral repair (keyhole surgery)

80
Q

Acromioclavicular joint dislocations

A

Associated with cycling where person falls onto the shoulder joint, sutures required to restabilise joint

81
Q

Flexor digitorum profundus

A

Origin: Ulna and interosseous membrane
Insertion: 2nd-5th DIPs
Innervation: Median nerve
Function: Flexion of digits 2-5 at DIPs and wrist

82
Q

Superficial extensors

A
Extensor carpi ulnaris
Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor digitorum
Extensor digiti minimi
Brachioradialis
Aconeus
83
Q

Extensor carpi ulnaris

A

Origin: lateral epicondyle
Insertion: Base of 5th metacarpal
Innervation: Radial nerve
Function: Extension and adduction of wrist

84
Q

Extensor carpi radialis longus and brevis

A

Origin: lateral supracondylar ridge
Insertion: 2nd and 3rd metacarpal bones
Innervation: Radial nerve
Function: extension and abduction of the wrist

85
Q

Extensor digitorum

A

Origin: Lateral epicondyle
Insertion: extensor hood of digits 2-5
Innervation: Radial nerve
Function: extension of digits at MCP and interphalangeal joints

86
Q

Extensor digiti minimi

A

Origin: Lateral epicondyle
Insertion: extensor hood of 5th digit
Innervation: Radial nerve
Function: extension of little finger and wrist

87
Q

Aconeus

A

Origin: Lateral epicondyle
Insertion: Posterolateral aspect of olecranon
Innervation: Radial nerve
Function: Extension of elbow; Abducts ulna during pronation of forearm

88
Q

Deep extensor muscles

A
Extensor pollicis brevis 
Extensor pollicis longus
Extensor indicis
Abductor pollicis longus
Supinator
89
Q

Anatomical snuffbox

A

Extensor pollicis longus

Combined (laterally): abductor pollicis longus and extensor pollicis brevis

90
Q

Extensor pollicis longus

A

Origin: posterior surface of ulna and interosseous membrane
Insertion: Distal phalanx of thumb
Innervation: radial nerve
Function: extension of thumb at interphalangeal, CMC, MCP joints

91
Q

Extensor pollicis brevis

A

Origin: posterior aspect of radius and interosseous membrane
Insertion: Proximal phalanx base
Innervation: radial nerve
Function: extension of thumb at CMC, and MCP joints

92
Q

Abductor pollicis longus

A

Origin: Interosseous membrane
Insertion: Lateral side of 1st metacarpal
Innervation: radial nerve
Function: Abducts the thumb

93
Q

Wrist abduction

A

Flexor carpi radialis
Extensor carpi radialis longus
Extensor carpi radialis brevis

94
Q

Wrist adduction

A

Flexor carpi ulnaris

Extensor carpi ulnaris

95
Q

Supinator

A

Origin: lateral epicondyle and ulna head
Insertion: posterior surface of radius
Innervation: radial nerve
Function: supination of forearm

96
Q

Pronator muscles

A

Pronator teres

Pronator quadratus

97
Q

Supinator muscles

A

Supinator

Biceps brachii

98
Q

Wrist drop

A

Due to radial nerve damage above the elbow (humeral dislocation or fracture) resulting in flexion of the wrist as the radial nerve innervates all the extensors

99
Q

Carpal tunnel syndrome

A

Median nerve compression due to increased pressure in carpal tunnel (associated with obesity, trauma, pregnancy)
Signs: thenar wasting, loss of abduction, loss of opposition
Rx = splint to support fingers, steroid injections, surgery to divide the flexor retinaculum to extend the carpal tunnel relieving the pressure and increasing the cross-sectional area

100
Q

Contents of carpal tunnel

A

Median nerve
Flexor pollicis longus
Flexor digitorum superficialis
Flexor digitorum profundus

101
Q

Innervation of deep flexors of forearm

A

Anterior interosseous nerve branching from the median nerve

Also sensory supply to lateral palm, D1/2/3 and half of D4

102
Q

Radial nerve

A

Superficial branch provides sensation to dorsum of hand D1/2/3 and half of D4
Deep branch provides motor innervation to extensor muscles

103
Q

Vincula

A

Connective tissue connecting a flexor tendon to a phalanx

104
Q

Annular ligaments

A

Form pulleys in hand

105
Q

4 Lumbrical muscles

A

Link the flexor tendons of the hand to the extensor tendons of the hand
Help to flex the metacarpophalangeal joints and extend the interphalangeal joints – this is the start of your precision grip
Lateral two lumbricals are unipenate and the lateral two lumbricals are bipenate
D2 & 3 lumbricals = median nerve
D4 & 5 lumbricals = ulnar nerve

106
Q

Interosseous muscles

A
Palmar interossei (PAD) adduct
Dorsal interossei (DAB) abduct
Sit between metacarpals attaching to metacarpal hoods
107
Q

Thenar muscles

A

Flexor pollicis brevis
Abductor pollicis brevis
Opponens pollicis
Involved in fine movement of D1 - opposition, flexion, abduction

108
Q

Hypothenar muscles

A

Flexor digiti minimi
Opponens digiti minimi
Abductor digiti minimi

109
Q

Adductor pollicis

A

Adduction of the thumb

110
Q

Superficial palmar arch

A

Predominantly formed by ulnar artery
Forms 3 common palmar digital arteries
Located deep to palmar aponeurosis
Above flexor tendons of hand

111
Q

Deep palmar arch

A

Predominantly formed by radial artery

Below flexor tendons of hand

112
Q

Ulnar artery

A

Supplies half of D2 to D5

113
Q

Median nerve in hand

A

Supplies thenar muscles, skin of D1,2, 3 and half of D4

114
Q

Clawed hand

A

Loss of nerve supply to medial two lumbricals to cause tonic contraction of flexor digitorum profundus (ulnar nerve)

115
Q

Trigger finger

A

Stiffening of collagen and tendons caused by catching of tendons at A1 pulley and thickening of sheath
Makes popping sound when moved
Due to overuse, degeneration, or change of direction of tendon
Rx: steroid injection, surgery to make the hole bigger and tendon is able to travel more easily

116
Q

Guyon’s canal

A

semi-rigid longitudinal canal in the wrist that allows passage of the ulnar artery and ulnar nerve into the hand

117
Q

Ulnar nerve damage

A

Wasted hypothenar web spaces
Paradoxical wasting thenar
Forearm wasting
Clawing of digits

118
Q

De Quervain’s disease

A

Pain around the radial styloid affecting gripping
Degeneration problem usually starting in 60s, overuse due to kinking of tendons, Ciprofloxacin (antibiotic), Anastrazole (breast cancer treatment drug)
Rx = Rest, splinting, ibuprofen, physiotherapy, steroid injection, surgery

119
Q

4 radiological findings of osteoarthritis

A

Loss of joint space - non-uniform joint space
Subcondral sclerosis - hardening of tissue
Juxtra-articular cysts
Osteophytosis - development of osteophytes (protrusions of bone and cartilage)

120
Q

Lateral collateral ligament

A

Prevents medial displacement of tibia

Tear of LCL causes genu varum (bow-legged)

121
Q

Medial collateral ligament

A

Prevents lateral displacement of the tibia

Tear of MCL causes genu valgus (knock-knees)

122
Q

Anterior cruciate ligament

A

Anterior to tibia
Prevents anterior displacement of tibia on femur
Weak so prone to injury
Sports injury: sharp twisting of knee causes immediate decreased range of movement

123
Q

Posterior cruciate ligament

A

Posterior to tibia - stabilises the knee when flexed e.g. when walking downhill
Prevents posterior displacement of tibia on femur

124
Q

Lachmann’s test

A

Identifies anterior cruciate ligament tear if there is laxity when moving the tibia anteriorly

125
Q

Menisci of the knee joint

A

Medial and lateral menisci on tibia
Deepen the articulating surfaces providing stability
Shock absorbers
Provide smooth viscous film for joint
Medial meniscus is attached to the medial collateral ligament limiting mobility

126
Q

Unhappy triad

A

Twisting on a flexed knee or a blow to the lateral side during contact sports
Results in anterior cruciate ligament, medial collateral ligament and medial meniscus rupture

127
Q

Iliotibial tract

A

Reinforces the joint capsule and stabilises the extended knee
Gluteus maximus and tensor fascia lata insert into the tract
IT tract inserts into lateral condyle of tibia

128
Q

Rotation during locking of the knee

A

The femur rotates on the tibia to tighten the tendons around the knee

129
Q

Patella fracture

A

Due to fall or blow to knee resulting in loss of active extension

130
Q

Patella dislocation

A

Common due to sudden twisting or jumping or ligamentous laxity

131
Q

Popliteus

A

Laterally rotates the femur on the tibia to unlock the knee joint

132
Q

Pre-patellar bursitis

“Housemaid’s knee”

A

Inflammation of the bursa in front of the knee due to leaning forward movement on the knees as the prepatellar bursa is contact with the floor
Seen in carpet fitters

133
Q

Infrapatellar bursitis

“clergyman’s knee”

A

Inflammation of the bursa below the knee

Infrapatellar bursa comes into contact with the floor when leaning back on your heels

134
Q

Baker’s cyst

A

Abnormal fluid filled sac in popliteal fossa due to herniation of synovial bursa
Common in arthritis and other chronic inflammatory joint diseases
Rx = aspiration and cortisone injection

135
Q

Femoral artery

A

Supplies anterior compartment of thigh
Becomes the popliteal artery in the popliteal fossa before dividing into the anterior and posterior tibial arteries on the lower part of the popliteus muscle

136
Q

C5 myotome

A

Deltoid

137
Q

C6 myotome

A

Biceps brachii
Brachialis
Brachioradialis

138
Q

C7 myotome

A

Triceps
Superficial forearm flexors
Superficial forearm extensors

139
Q

C8 myotome

A

Forearm extensors

Deep forearm flexors

140
Q

T1 myotome

A

Intrinsic hand muscles

141
Q

Biceps reflex

A

C5 reflex

Via musculocutaneous nerve

142
Q

Supinator reflex

A

C6 reflex

Via radial nerve

143
Q

Triceps reflex

A

C7 reflex

Via radial nerve

144
Q

Finger reflex

A

C8 reflex

Via median and ulnar nerve

145
Q

Shoulder sublaxation

A

Temporary dislocation of the shoulder where the ball of the humerus falls out of the glenoid fossa on scapula

146
Q

Flexors of foot

A

Gastrocneumius
Plantaris
Soleus

147
Q

Sural nerve

A

Sensation to lateral aspect of the foot and distal calf