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Anatomy & Physiology: Musculoskeletal

Triad knee injury 1. ACL 2. MCL 3. lateral meniscus
1. Which nerve is blocked to relieve pain during child labor? 2. Winged scapula is from damage to 1. pudental nerve 2. long thoracic nerve
Shoulder muscles that make up the rotator cuff SItS 1. Supraspinatus 2. Infraspinatus 3. teres minor 4. Subscapularis
Where is the lesion 1. Clawing of 2nd and 3rd digits 2. Clawing of 4th and 5th digits 1. distal median nerve lesion 2. distal ulnar nerve lesion (Pope's blessing)
1. Which cells produce collagen? 2. Which cells produce osteoid? 1. fibroblasts 2. osteoblasts
How does hyperkalemia lead to muscle weakness? elevated serum K+ causes depolarization of the resting membrane. Sustained depolarization closes the Na+ activation gate preventing further action potentials.
What nerve is damaged: 1. wrist drop 2. ape hand 3. loss of forearm flexion 4. loss of forearm extension 1. radius (cannot extend wrist) 2. median (cannot oppose thumb to fingers) 3. musculocutaneous 4. radius
What nerve is most likely to be injured: 1. shaft of humerus 2. surgical neck of humerus 3. supracondyle of the humerus 4. medial epicondyle of humerus 5. anterior shoulder dislocation 6. injury to the carpal tunnel 7. hook of the hamate 1. radius 2. axillary 3. median 4. ulnar 5. axillary 6. median 7. ulnar
Which ligament attaches from medial femur to lateral fibula? Posterior cruciate ligament
Where is the lesion when a patient present waiter's tip hand (Erb's palsy)? upper trunk of the brachial plexus (C5 and C6)
Where is the lesion 1. Patient cannot extend digits 4 and 5 2. Patient cannot extend digits 2 and 3 3. total claw hand 1. ulnar lesion 2. median nerve lesion 3. lower tunk (C8, T1)
Which nerve innervates the: 1. ulnar lumbricals 2. radial lumbricals 1. ulnar nerve 2. median nerve
Which muscle type: 1. calcium-induced calcium release 2. calcium-calmodulin 3. T tubules 1. cardiac 2. smooth 3. skeletal
Which proprioceptive organ is involved: 1. muscle tension 2. muscle length 1. golgi tendon 2. muscle spindle
In smooth muscle, what is the path to cross bridge formation starting with Calcium binding to calmodulin? 1. Ca2+ binds calmodulin 2. myosin light-chain kinase activated 3. Myosin phosphorylated 4. cross bridge occurs
What nerve is injured: 1. unable to abduct arm beyond 10 degree 2. unable to raise arm above horizontal 3. weak lateral rotation of arm 1. suprascapular nerve 2. axillary nerve 3. suprascapular nerve
Created by: amichael87



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