Test your basic knowledge |

Musculoskeletal

Instructions:

Answer 50 questions in 15 minutes.
If you are not ready to take this test, you can study here.
Match each statement with the correct term.
Don't refresh. All questions and answers are randomly picked and ordered every time you load a test.

This is a study tool. The 3 wrong answers for each question are randomly chosen from answers to other questions. So, you might find at times the answers obvious, but you will see it re-enforces your understanding as you take the test each time.

1. Very superfiicial skin infection - honey colored crusting - very contagious - condition and organisms
Impetigo - s aureus - s pyogenes
Down T tubule
Phosphate is liberated from the myosin head
In psoriasis - bleeding spots when scales are scraped off

2. What nerve is injured in a fracture of the medial epicondyle of humerus - and What is a more distal lesion injuring the same nerve
Ulnar nerve - fracture of hook of hamate
Macule
Muslce use - nerve stim/compound muscle test
Long thoracic nerve

3. Thenar eminence - nerve and muscles
3rd finger
Median - opponens pollicis - abductors pollicis brevis - flexor pollicis brevis
In psoriasis - bleeding spots when scales are scraped off
Upper trunk compression - biceps - brachialis - corachobrachialis - flexion of arm at elbow - sensory = lateraly forearm

4. Associated with M. pneumonia - HSV - sulfa drugs - B lactams - phenytoin - cancers and autoimmune dz - skin disorder and description
Pseudogout
Viral - maybe paramyxovirus
Erythema multiforme - can be macules - papules vesicles - target lesions -
Infraspinatus - laterally rotates arm

5. In skeletal and smooth muscle contraction - when Ca2+ enters the cytoplasm - What does it do
The dermis
Binds troponin C causing a conformational change leading to tropomyosin to move out of the way allowing for actin/myosin cycling
Ulnar nerve
Osteopetrosis - abnl fxn of osteoclasts

6. Where is C4 dermatome
Dermatitis
Over deltoid
Keratoacanthoma
Fever - fatigue - pleuritis - pericarditis

7. hives - intensely pruritic wheals that form after mast cell degranulation
Head - trunk - extremities - common benign neoplasm in older persons
Intermediate jxn - just below zona occludens - cadherins and actin filaments - cadherins are dependent on Ca2+
Urticaria
GC and cGMP and inhibition of MLCK

8. freckle - normal number of melanocytes - inc melanin pigment
Medial forearm and arm to just under the axilla
Actin
Degenerative injury due to repeated use - tiny tears in the tendons and muscles - may be inflammatory - lateral epicondyle is tennis - medial epicondyle is golf
Ephelis

9. What does MLCK do in smooth muscle contraction
Restrictive lung disease - bilateral hilar lymphadenopathy - erythema nodosum - Bell's palsy
Median - lateral finger and wrist flexion - dorsal palmar aspects of lateral 3.5 fingers/thenar eminence - ape hand - carpal tunnel syndrome
Deep branch of radial nerve
Phosphorylates myosin light chain which leads to cross bridge formation

10. small fluid containing blister seen in chickenpox
Femoral - thing flexion and leg extension - anterior thigh and medial leg
Vertebral crush fractures - femoral neck fractures - distal radius (Colles') fracture
Supraspinatus - abducts the arm before the deltoid
Vesicle

11. Patients with pagets disease can develop what cancer
Dec Ca - dec phos - nl alk phos - inc PTH - soft bones
S. aureus - streptococcus
Endochondroma
Osteogenic carcinoma

12. Contraction results in shortening of what bands - and what band remains the same length
Axilla
Ephelis
HI shrinks - A stays same
Asymmetric - swollen - red - painful joint - often MTP (podagra) - tophus formation on external ear - olecranon bursa - achilles tendon

13. What are the systemic symptoms found in RA
Gout
Squamous cell carcinoma
Teres minor
Fever - fatigue - pleuritis - pericarditis

14. What are the predisposing factors for osteoarthritis
Ulnar nerve
Flex at the MCP
Fever - fatigue - pleuritis - pericarditis
Age - obesity and joint deformity

15. What causes compression of the C7 nerve root
Pemphigus vulgaris
Cervical disk lesion
Macule
Urticaria

16. pruritic eruption - commonly on skin flexures - of associated with asthma - allergic rhinitis
Atopic dermatitis - eczema
Deep branch of radial nerve
Melasma (chloasma)
Actin

17. What is the TX for chronic gout
Serratus anterior - connects scapular to thoracic cage - abduction above horizontal position - injured in mastectomy - winged scapula and lymphedema
Abduct the fingers
Palisading
Allopurinaol - uricosurics (probenicid)

18. What receptor is constitutively activated in achondroplasia and What does it do
Lung
< 2mc found in proximal tibia and femur - men < 25
Phosphorylated
Fibroblast growth factor receptor (FGFR3) inhibits chondrocyte proliferation

19. normal melanocyte number with dec melanin production due to inactivity of tyrosine
Flat bone (skul - facial bones - axial skeleton) woven directly formed - no cartilage - later remodeled to lamellar
Type 2 - dec mitochondria and myoglobin - inc anaerobic glycolysis
Albinism
Seborrheic keratosis

20. 2nd most malignant tumor of bone - men 10-20 - cancer - and primary malignant tumor bone
Osteosarcoma - multiple myeloma
Intraepidermal bullae involving the skin and oral mucosa
Corneum - lucidum - granulosum - spinosum - basalis
Erythema multiforme - can be macules - papules vesicles - target lesions -

21. Other than N. gono - what organisms can cause infectious - septic arthritis
S. aureus - streptococcus
Median nerve
Serum ca - phos - alk phos are NL
ACH esterase inhibitors - edrophonium test - improvement of sx after edro means the patient is underdosed

22. What are common features of lupus
Allows adjacent cells to communicate for electric and metabolic fxns - connexons
Wire - loop lesions in kidney with immune complex deposition - death from renal failure and infxns
Making fist with a proximal median nerve lesion
Failure of longitudinal growth (endochondrial ossification) leading to short limbs - membranous is unaffected - large head

23. What nerve is injured in a fracutre of the hook of hamate
Ulnar nerve
Over deltoid
Ribonucleoprotein antigents - SS- A and SS- B (Ro and La)
Deep branch of radial nerve

24. What does injury to the distal median nerve cause

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

25. Damage to what 3 structures is common for the unhappy triad
Metaphysis of long bones - distal femur
Muslce use - nerve stim/compound muscle test
Supraspinatus - infraspinatus - teres minor - subscapularis - SItS
MCL - ACL - lateral meniscus (esp in athletes)

26. heliotrope rash 'shawl and face' rash - Gotton's papules - 'mechanic's hands'
Widespread skin involvment - rapid progression - early visceral involvement
Anti ds DNA - poor prognosis
Dermatomyositis
Acantholysis

27. thickened - dense bones that are prone to fracture - dz and primary defect
EtOH metabolites compete for same excretion site in kidney as uric acid - causing dec uric acid secretion and subsequent buildup
Phosphorylates myosin light chain which leads to cross bridge formation
Osteopetrosis - abnl fxn of osteoclasts
Gout

28. warts on hands
Verrucae vulgaris
Pemphigus vulgaris - macula adherens where cadherins attach to intermediate filaments
NC migration
S. aureus - streptococcus

29. precipitation of monosodium urate crystals into joints due to hyperuricemia
Bulla
Expansile glistening mass within the medullary cavity
Gout
Parakeratosis

30. malignant cartilaginous tumor in men 30 to 60 - Name and common location
Schaumann (calcium and protein inclusions inside Langhans giant cells) and asteroid bodies
Recurrent branch of the medain nerve
Chondrosarcoma - pelvis - spine - scapula - humerus - tibia - or femur
Loss of lateral lumbrical fxn - 2nd and 3d digits are clawed and can't extend

31. What are the possible origins of the paget's disease
Ulnar
Pseudogout
Viral - maybe paramyxovirus
Femoral - thing flexion and leg extension - anterior thigh and medial leg

32. What TX prophylax against osteoporisi
Proximal median nerve lesion - loss of opponens pollicis muscle fxn leading to unopposoble thumb
Exercise and Ca ingestion before age 30
Peroneal everts and dorsiflexes - foot dropPED; tibial inverts and plantarflexes - can't stand on Tip toes
Serratus anterior - connects scapular to thoracic cage - abduction above horizontal position - injured in mastectomy - winged scapula and lymphedema

33. fracture of a supracondylar humerus - nerve - motor - sensory - sign and more distal lesion causing the same nerve
MCP - PIP - no DIP
Median - lateral finger and wrist flexion - dorsal palmar aspects of lateral 3.5 fingers/thenar eminence - ape hand - carpal tunnel syndrome
Radial nerve
Pustule

34. What muscles of the shoulder form the rotator cuff
Biceps
Supraspinatus - infraspinatus - teres minor - subscapularis - SItS
ACH esterase inhibitors - edrophonium test - improvement of sx after edro means the patient is underdosed
Expansile glistening mass within the medullary cavity

35. Administration of what kind of compound causes reversal of symptoms and What is used to distringuish under from over dosing
Ephelis
Inc spinosum - dec granulosum
ACH esterase inhibitors - edrophonium test - improvement of sx after edro means the patient is underdosed
Renal - pulm - CV - GI - 75% female

36. In a fractured surgical neck of humerus or dislocation of humeral head - What is the nerve injury - motor deficit - sensory deficit
Ulnar nerve
Cervical disk lesion
Axillary - deltoid - skin over deltoid - flattened deltoid
Muslce use - nerve stim/compound muscle test

37. What does abnl passive abduction of the knee indicate
Torn MCL
Recurrent branch of the median nerve
Hairy leukoplakia - HIV population - EBV mediated
Gout

38. What is the Sicca syndrome
Posterior cord
Acanthosis nigcricans
Crust
Dry eyes - dry mouth - nasal and vaginal dryness - chronic bronchitis - reflux esophagitis and No arthritis

39. What are the potential causes of gout

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

40. What are predisposing factors for osteosarcoma - xray finding

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

41. What nerve is compressed in carpal tunnel syndrome or a disclocation of this bone
Phosphorylated
Posterior cord
Median nerve - lunate bone
Necrotizing fasciitis - anaerobic bacteria or S. pyogenes

42. Loss of what muslces in Erbs causes the limb to hang by side
Medial forearm and arm to just under the axilla
Lesioned by midshaft fracture of humerus
Osteochondroma - exostosis
Paralysis of abductors

43. What is the sign of Leser - Trelat
Small cell cancer of the lung - improve with muscle use - no change with ACHE inhibs
Hairy leukoplakia - HIV population - EBV mediated
Sudden appearance of multiple sebhorrheic keratosis lesions indicating underlying lesions - GI or lymphoid
MCP - PIP - no DIP

44. Other than characteristic joints and subQ nodules - What are the other findings classicly in RA
Binds troponin C causing a conformational change leading to tropomyosin to move out of the way allowing for actin/myosin cycling
Female between 14 and 45 - mostly black
Ulnar deviation - subluxation - bakers cysts (behind knee)
Common peroneal - foot eversion and dorsiflexion - toe extention - foot drop - foot slap - stepped gaint - anterolateral leg and dorsal aspect of foot for sensory

45. What does PED and Tip stand for

Warning: Invalid argument supplied for foreach() in /var/www/html/basicversity.com/show_quiz.php on line 183

46. What is the sensory def of an ulnar nerve injury
Posterior hip dislocation - can't jump - climb stairs or rise from seated positions
Female between 14 and 45 - mostly black
Serum ca - phos - alk phos are NL
Medial 1.5 fingers - hypothenar eminence

47. What are the causes of inferior trunk plexus compression and What are the findings
Embryologic - childbirth defect - cervical rib compression - atrophy of the thenar and hypothenar eminences - atrophy of interosseous muscles - sensory deficits of the medial side of the forearm and hand - disappearance of the radial pulse upon movin
Osteoma (gardners syndrome) - new piece of bone grows on another bone - often skull
Acute back pain - loss of height - and kyphosis
Osteoarthritis

48. What does subscapularis do
Mesenchymal stem cells in periosteum
Medially rotates and adducts arm
Pemphigus vulgaris - macula adherens where cadherins attach to intermediate filaments
Common peroneal - foot eversion and dorsiflexion - toe extention - foot drop - foot slap - stepped gaint - anterolateral leg and dorsal aspect of foot for sensory

49. What variant of squamous cells carcinoma of the skin grows rapidly and regresses spontaneously
STD presents as a monarticular - migratory arthritis with an asynmetrical pattern - affected joint is painful - red and swollen
Intraepidermal bullae involving the skin and oral mucosa
Median nerve - lunate bone
Keratoacanthoma

50. What are the most common symtpoms of SLE
Renal - pulm - CV - GI - 75% female
Proximal median nerve lesion - loss of opponens pollicis muscle fxn leading to unopposoble thumb
Trauma
Fever - fatigue - weight loss - nonbacterial verruucous (Liebman - Sacks) endocarditis - hilar adenopathy - Raynauds