SUBJECTS
|
BROWSE
|
CAREER CENTER
|
POPULAR
|
JOIN
|
LOGIN
Business Skills
|
Soft Skills
|
Basic Literacy
|
Certifications
About
|
Help
|
Privacy
|
Terms
|
Email
Search
Test your basic knowledge |
Musculoskeletal
Start Test
Study First
Subject
:
health-sciences
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. What does lack of ATP cause
Osteochondroma - exostosis
Viral - maybe paramyxovirus
Rigor mortis
Paralysis of lateral rotators
2. skin cancer associatd associated with excessive exposure to sunlight and arsenic
Dysplastic nevus
Squamous cell carcinoma
Stevens johnson syndrome - associated with adverse drug reactions - more severe version called toxic epidermal necrolysis
STD presents as a monarticular - migratory arthritis with an asynmetrical pattern - affected joint is painful - red and swollen
3. What are the borders of the superficial branch of the radial nerve dermatone
Strawberry hemangioma
Dorsal side of lateral hand - most of lateral surface of the thumb - no digits
Integrin binds laminin in BM
Anti ds DNA - poor prognosis
4. Where does the muscle contraction travel after leaving the motor end plate
Intermediate jxn - just below zona occludens - cadherins and actin filaments - cadherins are dependent on Ca2+
Polymyositis - shoulders - perifasicular inflammation
Down T tubule
Median - lateral finger and wrist flexion - dorsal palmar aspects of lateral 3.5 fingers/thenar eminence - ape hand - carpal tunnel syndrome
5. Where is McBurney's point and What is there
2/3 of the way from the umbilicus to the anterior superior iliac spine - appendix
Parotid enlargement - inc risk of B cell lymphoma - dental caries
GC and cGMP and inhibition of MLCK
Impetigo - s aureus - s pyogenes
6. hyperkeratosis with retention of nuclei in stratum corneum seen in psoriasis
Radial - BEST extensors - posterior arm and dorsal hand/thumb - wrist drop
Staph scalded skin syndrome
Parakeratosis
Calmodulin - complex activates myosin light chain kinase
7. What is the sensory def of an ulnar nerve injury
Pustule
Recurrent branch of the median nerve
Defective mineralization/calcification of osteoid - osteomalacia in adults and ricketts in kids
Medial 1.5 fingers - hypothenar eminence
8. What deformities of the hand are common in RA
Viral - maybe paramyxovirus
Boutonniere - swan neck - zthumb
Pain in weight bearing joints at the end of the day and improving with rest
Allopurinaol - uricosurics (probenicid)
9. What do anterior and posterior in ACL and PCL refer to...
Condyloma acuminatum - caused by HPV
McCune - Albright syndrome
Sites of tibial attachment
Median nerve - same fingers but not on the hand
10. Other than N. gono - what organisms can cause infectious - septic arthritis
Ligand binding leads to muscle depol
Chondrosarcoma
Torn MCL
S. aureus - streptococcus
11. Where is T1 dermatome
Medial forearm and arm to just under the axilla
Radial nerve
Basophilic - rhomboid crystals - weakly birefringent
Tibial - foot inversioon and plantarflexion; toe flexion - sole of foot is sensory
12. What are the lab findings in osteoporosis
Chondrosarcoma
Ischial spine - relieve pain during delivery
Erythema nodosum
Nl - decreased bone mass
13. larger osteoid osteoma found in vertebral column
S100 - associated with sunligh exposure - fair skinned at risk - depth of tumor correlates with risk of mets - dark with irregular borders
Anti Smith
Osteoblastoma
Chondrosarcoma - pelvis - spine - scapula - humerus - tibia - or femur
14. What nerve is injured by a fracture of the epicondyle of humerus or repeated minor traumas
Mosiac bone pattern - long bone chalk stick fractures - increased hat size or hearing loss due to auditory foramen narrowing
Muslce use - nerve stim/compound muscle test
Ulnar nerve
Ulnar nerve - adduction of thumb - extension of 4th and 5th fingers (lumbricals)
15. What do pseudogout crystals appear like microscopically
Osteopetrosis - abnl fxn of osteoclasts
Basophilic - rhomboid crystals - weakly birefringent
Head - trunk - extremities - common benign neoplasm in older persons
Lesch - nyhan - PRPP excess - dec exretion of uric acid (thiazide) inc cell turnover - von Gierke's dz - 90% due to underexcretion - 10% to overproduction
16. Where is C5 dermatome
Outer arm
Iliac crest
Acute back pain - loss of height - and kyphosis
Anti - CCP - HLA- DR4
17. Contraction results in shortening of what bands - and what band remains the same length
Inc CK - inc aldolase - and positive ANA and anti Jo -1 - steroids
Ulnar nerve - adduction of thumb - extension of 4th and 5th fingers (lumbricals)
Dec Ca - dec phos - nl alk phos - inc PTH - soft bones
HI shrinks - A stays same
18. loss of what muscles in Erbs causes the medial rotation
Seborrheic keratosis
Actin
Paralysis of lateral rotators
Ankylosing spondylitis - uveitis - aortic regurg and bamboo spine
19. What signal initiates a muscle contraction
Vesicle
Exercise and Ca ingestion before age 30
AP depol opens voltage gated Ca channels - inducing NT release
Over deltoid
20. What receptor is constitutively activated in achondroplasia and What does it do
Inc alk phos - abnl bone architecture
Fibroblast growth factor receptor (FGFR3) inhibits chondrocyte proliferation
Median - opponens pollicis - abductors pollicis brevis - flexor pollicis brevis
Vertebral crush fractures - femoral neck fractures - distal radius (Colles') fracture
21. small fluid containing blister seen in chickenpox
Vesicle
Ulnar deviation - subluxation - bakers cysts (behind knee)
Plaque
Interossei and adductor policis
22. What lesion causes claw hand and What are the muscles involved
Median - opponens pollicis - abductors pollicis brevis - flexor pollicis brevis
Ulnar nerve - intrinsic muscles of hand
Proximal median nerve lesion - loss of opponens pollicis muscle fxn leading to unopposoble thumb
Carbonic anhydrase II
23. What is the TX for acute gout
NSAIDs (indomethacin) colchicine
Xeropthalmia - xerostomia - arthritis
Basophilic - rhomboid crystals - weakly birefringent
McCune - Albright syndrome
24. Who does osteoporosis type 2 effect
Widespread skin involvment - rapid progression - early visceral involvement
Osteoid osteoma
Men and women > 70 - senile osteporosis
Carbonic anhydrase II
25. warts on genitals
Supraspinatus - infraspinatus - teres minor - subscapularis - SItS
Age - obesity and joint deformity
Condyloma acuminatum - caused by HPV
Connects cells to underlying extracellular - bullous pemphigoid
26. interlacing trabeculae of woven bone surrounded by osteoblasts
Urticaria
Osteoid osteoma
Median nerve
Type 2 - dec mitochondria and myoglobin - inc anaerobic glycolysis
27. fracture of a supracondylar humerus - nerve - motor - sensory - sign and more distal lesion causing the same nerve
Verrucae
Polyostotic fibrous dysplasia
Median - lateral finger and wrist flexion - dorsal palmar aspects of lateral 3.5 fingers/thenar eminence - ape hand - carpal tunnel syndrome
S100 - associated with sunligh exposure - fair skinned at risk - depth of tumor correlates with risk of mets - dark with irregular borders
28. epidermal hyperplasia (inc spinosum)
Acanthosis
Type 2
Medial forearm and arm to just under the axilla
Widespread skin involvment - rapid progression - early visceral involvement
29. What is below the epidermis
Recurrent branch of the median nerve
Schaumann (calcium and protein inclusions inside Langhans giant cells) and asteroid bodies
Median nerve - lunate bone
The dermis
30. What disease is caused by autoantibodies to desomosmes - What area of the cell would it occur - and what molecules are connecting
Failure of longitudinal growth (endochondrial ossification) leading to short limbs - membranous is unaffected - large head
Pemphigus vulgaris - macula adherens where cadherins attach to intermediate filaments
Wheal
Defective mineralization/calcification of osteoid - osteomalacia in adults and ricketts in kids
31. What does soft bones result from and What is the dz called in adults and children
Hands and face - ulcerative red lesion - locally invasive bur rare metastasis - associated with chronic draining sinuses and keratin pearls
Seborrheic keratosis
Deep branch of radial nerve
Defective mineralization/calcification of osteoid - osteomalacia in adults and ricketts in kids
32. What is contained within epithelial granulomas of pts with sarcoid
Making fist with a proximal median nerve lesion
Schaumann (calcium and protein inclusions inside Langhans giant cells) and asteroid bodies
Serum ca - phos - PTH are nl alk phos elevated
Type 2 - dec mitochondria and myoglobin - inc anaerobic glycolysis
33. What nerve become injured in the incorrect use of a crutch
Pseudogout
Radial nerve becomes compressed in axilla
Sarcoidosis - black females - ACE
Calmodulin - complex activates myosin light chain kinase
34. Damage to what 3 structures is common for the unhappy triad
Tear of the ACL
Parotid enlargement - inc risk of B cell lymphoma - dental caries
MCL - ACL - lateral meniscus (esp in athletes)
Gout
35. acute painful spreading infxn of dermis and subQ tissues - condition and orgs
Osteoma (gardners syndrome) - new piece of bone grows on another bone - often skull
Cellulitis - s aureus - s pyogenes
Vertebral crush fractures - femoral neck fractures - distal radius (Colles') fracture
Ewings sarcoma - aggressive with early mets - but responsive to chemo
36. What molecule maintatins integrity of basement membrane and What does it bind
Integrin binds laminin in BM
Radial deviation of wrist upon flexion - ulnar claw hand - pope's blessing
TB from dissemination and lyme dz
Inc alk phos - abnl bone architecture
37. What are the histo findings in an osteoclastoma
Ulnar nerve
Xeropthalmia - xerostomia - arthritis
Keratoacanthoma
Spindle shaped cells with multinucleated giant cells
38. What causes heart failure in with Paget's disease
Inc blood flow from AV shunts can cause high output heart failure
Voltage sens - dihydropiridine R coupled to ryanodine recpetor - conformational change in the SR - releasing Ca2+
Osteoid osteoma
Middle bicep down - cuts lateral at cuboidal foass and runs distally to include the thumb and 2nd digit
39. What is the classic presentation of RA
Xeropthalmia - xerostomia - arthritis
Morning stiffness for > 30 min improving with use - symmetry - systemic sx
Anti ds DNA - poor prognosis
2/3 of the way from the umbilicus to the anterior superior iliac spine - appendix
40. common mole - benign
Myasthenia gravis - autoAb against ACH receptors causing ptosis - diplopia - general weakness -
Type 2 - dec mitochondria and myoglobin - inc anaerobic glycolysis
Nevocellular nevus
Crohns and ulcerative colitis
41. mechanical wear and tear of joints leading to destruction of articular cartilage
Verrucae
Osteoarthritis
Cherry hemangioma
Acantholysis
42. white painless plaques on the tongue that cannot be scraped off - dz - population - implicated virus
Erlenmeyer flask bones that flare out - narrowed foramina
Boutonniere - swan neck - zthumb
Hairy leukoplakia - HIV population - EBV mediated
Upper trunk compression - biceps - brachialis - corachobrachialis - flexion of arm at elbow - sensory = lateraly forearm
43. What supplies innervation to the thenar muscles
Pain in weight bearing joints at the end of the day and improving with rest
Precocious puberty
Hairy leukoplakia - HIV population - EBV mediated
Recurrent branch of the median nerve
44. inflammation of the skin
Dry eyes - dry mouth - nasal and vaginal dryness - chronic bronchitis - reflux esophagitis and No arthritis
Dermatitis
Median nerve
Supraspinatus - infraspinatus - teres minor - subscapularis - SItS
45. What do dorsal interosseous muscles do
Abduct the fingers
Dysplastic nevus
Ribonucleoprotein antigents - SS- A and SS- B (Ro and La)
S100 - associated with sunligh exposure - fair skinned at risk - depth of tumor correlates with risk of mets - dark with irregular borders
46. Where do sebhorrheic keratosis lesions occur and in who
Head - trunk - extremities - common benign neoplasm in older persons
Anterior interosseous nerve
Osteogenic carcinoma
Acanthosis nigcricans
47. What is the sign of Leser - Trelat
NSAIDs (indomethacin) colchicine
Troponin C - conformational change that moves tropomyosin out the myosin binding groove on actin filaments
Inc Ca - dec phos - inc alk phos - inc PTH - brown tumors
Sudden appearance of multiple sebhorrheic keratosis lesions indicating underlying lesions - GI or lymphoid
48. What lesions causes Erb's palsy
Upper trunk of brachial plexus
Opposition of thumb - dorsal/palmar 3.5 fingers sensory - ulnar deviation upon wrist flexion
Making fist with a proximal median nerve lesion
Flex at the MCP
49. Deposition of calcium pyrophosphate cyrstals within the joint space
Axillary - deltoid - skin over deltoid - flattened deltoid
Lamber eaton - presynaptic Ca channels - dec ACH release leading to proximal muscle weakness
Condyloma acuminatum - caused by HPV
Pseudogout
50. freckle - normal number of melanocytes - inc melanin pigment
Osteoporosis
Plaque
Ephelis
Osteoma (gardners syndrome) - new piece of bone grows on another bone - often skull