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Derm + MSK Moi > MSK anatomy Passmed > Flashcards

MSK anatomy Passmed Flashcards

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Dermatology Board Prep flashcards
1
Q

Flexion muscles of Upper arm ?

A

Anterior part of deltoid
Pectoralis Major
Biceps
Coracobrachialis

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2
Q

Extension muscle of upper arm ?

A

Posterior Deltoid
Teres major
Latissimus Dorsi

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3
Q

Adduction muscles of upper arm ?

A

Pectoralis Major
Latissimus dorsi
Teres major
Coracobrachialis

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4
Q

Abduciton muscle of upper arm ?

A

Mid deltoid

Supraspinatus

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5
Q

Medial Rotaters of upper arm ?

A

Subscapularis
Anterior deltoid
Teres major
Latissimus dorsi

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6
Q

Lateral Rotaters of upper arm ?

A

Posterior deltoid
Infraspinatus
Teres minor

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7
Q

Structures of the lateral malleolus - Superficial

A

sural nerve

Short saphenous vein

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8
Q

Structures of the lateral malleolus - Deep

A

Peroneus longus tendon

Peroneus brevis tendon

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9
Q

Where does the long head of the biceps tendon originate?

A

Supraglenoid tubercle of the scapula

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10
Q

What is the origin of the coracobrachialis and the short head of biceps brachii?

A

Coracoid process of the scapula

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11
Q

Site at which the long head of triceps brachii originates.

A

infraglenoid tubercle

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12
Q

L3 nerve root compression

A

Sensory loss over anterior thigh.
Weak quadriceps
Reduced knee reflex
Positive femoral stretch test

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13
Q

L4 nerve root compression

A

Sensory loss anterior aspect of knee
Weak quadriceps
Reduced knee reflex
Positive femoral stretch test

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14
Q

L5 nerve root compression

A

Sensory loss dorsum of foot
Weakness in foot and big toe dorsiflexion
Reflexes intact

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15
Q

S1 nerve root compression

A

Sensory loss posterolateral aspect of leg and lateral aspect of foot
Weakness in plantar flexion of foot
Reduced ankle reflex

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16
Q

Musculocutanous nerve (C5-7)

A

Motor: Elbow flexion + Supination (supplies (biceps brachii, Brachialis + Coracobrachialis)

Sensory: Lateral part of the forearm

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17
Q

Axillary nerve (C5 - 6)

A

Motor: Shoulder abduction (deltoid muscle).

Sensory: Inferior region of the deltoid muscle.

If damaged via surgical neck fracture = unable to Abduct.

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18
Q

Radial Nerve (C5-8)

A

Motor: Extension (forearm, wrist, fingers, thumb)

Sensory: Small area between the dorsal aspect of the 1st and 2nd metacarpals

Can result in a wRist drop via axilla / mid-shaft fracture.

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19
Q

Median Nerve (C6 - 8, T1)

A

LOAF* muscles.

Can be compromised = CTS / supracondylar fracture

Can cause…
Monkey hand
Paralysis of Thenar muscles, opponens pollicis
From elbow = loss of pronation of forearm + weak wrist flexion.

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20
Q

Ulnar Nerve (C8-T1)

A

Motor: Intrinsic hand muscles except LOAF* Wrist flexion.

Sensory: Medial 1+1/2 fingers

Outstretched fall + medial epicondyle fracture = Ulnar claw.

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21
Q

Long thoracic nerve (C5-C7)

A

Serratus anterior.

Damaged from rib fracture = winged scapula.

22
Q

What are the Thenar muscles ?

A

Abductor pollicis brevis
Opponens Pollicis
flexor pollicis brevis

23
Q

Hypothenar eminence

A

Opponens digiti minimi
Flexor digiti minimi brevis
Abductor digiti minimi

24
Q

Compression of C5 - 6

A

Deltoid + Biceps

25
Q

Compression of C6 - 8

A

Wrist extensors + Triceps.

26
Q

Compression of C6 - T1

A

Wrist flexors

27
Q

Compression of C8 - T1

A

Hand muscles

28
Q

Movement of Supraspinatus ?

A

aBDucts arm before deltoid

Most commonly injuried

29
Q

Movement of Infraspinatus ?

A

Rotates arm laterally

30
Q

Movement of Teres minor ?

A

aDDUcts + rotates arm laterally

31
Q

Movement of Subscapularis ?

A

aDDucts + rotates arm medially

32
Q

Structures within carpal tunnel ?

A

Flexor digitorum profundus (four tendons)
Flexor digitorum superficialis (four tendons)
Flexor pollicis longus
Median nerve

33
Q

What are the Intrinic muscles ?

A 
A bductor pollicis brevis
O pponens pollicis
F lexor pollicis brevis
A dductor pollicis (thenar muscles)
O pponens digiti minimi
F lexor digiti minimi brevis
A bductor digiti minimi (hypothenar muscles)
34
Q

What is a positive Froment’s sign ?

A

is indicative of ulnar nerve palsy.

ulnar nerve is responsible for finger adduction and abduction.

35
Q

Anterior compartment of leg ?

A

Tibialis anterior
Extensor digitorum longus (Extends lateral four toes)
Peroneus tertius
Extensor hallucis longus (extends big toe)

36
Q

Anterior compartment of leg is innervated by which nerve ?

A

Deep peroneal nerve

37
Q

What the function of the Anterior compartment of leg ?

A

Dorsiflexion of ankle joint

38
Q

Peroneal compartment ?

A

Peroneus longus

Peroneus brevis

39
Q

Peroneal compartment is innervated by which nerve ?

A

superficial peroneal nerve

40
Q

What the function of the Peroneal compartment of leg ?

A

Plantar flexes the ankle joint

41
Q

Superficial posterior compartment ?

A

Gastrocnemius

Soleus

42
Q

What is Superficial posterior compartment function and is innervated by which nerve ?

A

Tibial nerve

Plantar flexion

43
Q

Deep posterior compartment ?

A

Flexor digitorum longus
Flexor hallucis longus
Tibialis posterior

44
Q

Deep posterior compartment is innervated by which nerve ?

A

Tibial nerve

45
Q

What are the contents of the cubital fossa ?

A 
(From L - M) = 'Really Need Beer To Be At My Nicest'
Radial nerve, 
Brachial tendon, 
Brachial artery, 
Median nerve
46
Q

Femoral Nerve

A

Knee extension, thigh flexion.

Damaged after Hip/Pelvic fracture, stab/gunshot wounds.

47
Q

Obturator Nerve

A

Thigh adduction.

Damaged after anterior hip dislocation.

48
Q

Tibial nerve

A

Foot plantar flexion + inversion (sole of foot).

Popliteal laceration, posterior knee dislocation.

49
Q

Common Peroneal Nerve

A

Foot dorsiflexion+ eversion.

50
Q

Superior Gluteal Nerve

A

Hip abduction.
Damaged via Misplaced intramuscular injection, pelvic / hip fractures.

Look for Trendelenburg sign.

51
Q

Inferior Gluteal Nerve

A

Hip extension + lateral rotation.

Damaged via sciatic nerve, difficulty rising from seated position,

Derm + MSK Moi (3 decks)

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