CORRECT Answers
Anaerobic Metabolism - CORRECT ANSWER ATP production during high intensity and
short duration ex where Phosphocreatine within the muscle turns into ATP rapidly.
15 seconds of muscle contractility
Anaerobic Glycolysis - CORRECT ANSWER ATP production during high intensity, short
duration ex where sugar converts to ATP and results in lactic acid build up
30-40 seconds of muscle contractility
Aerobic Metabolism - CORRECT ANSWER ATP production for low intensity and long
duration ex by the use of oxygen
Class 1 Lever - CORRECT ANSWER The fulcrum is between the effort and the load
(bicep curl)
Class 2 Lever - CORRECT ANSWER When the load is between the effort and the
fulcrum
(Push-up during up)
Class 3 Lever - CORRECT ANSWER The effort is between the load and the fulcrum
(weighted shoulder ABD)
Fibrous Joints - CORRECT ANSWER Bones that are united by fibrous tissue and are non-
synovial with little movement.
3 Types of Fibrous Joints (Synarthroses) - CORRECT ANSWER Sutures - (skull) United
by ligaments
Syndesmoses -(Fibula into tibia) dense fibrous membrane like interosseous
,Gomphoses - Teeth into mandible through gum socket (only of this type)
Cartilaginous Joints (Amphithroses) - CORRECT ANSWER Bones united by cartilage or
fibrocartilage and are slightly moveable.
Synovial Joints (Diathroses) - CORRECT ANSWER Freely moveable joints and are most
susceptible to injury
Characteristics: Joint cavity, articular cartilage, synovial membrane, synovial fluid and fibrous
capsule.
Types of synovial joints - CORRECT ANSWER Hinge - elbow
Pivot - atlantoaxial
Condyloid - metacarpophalangeal
Saddle - capometacarpal joint of thumb
Plane (gliding) - carpal joints
Ball and socket - hip joint
Type 1 Muscle Fibers - CORRECT ANSWER Aerobic, extensive blood supply, slow
twitch, slow-oxidative, low fatigue-ability,
Ex. Marathon running
Type 2 Muscle Fibers - CORRECT ANSWER Anaerobic, low blood supply, fast twitch,
fast glycolytic, high fatigue-ability
Ex. High jump & sprinting
Muscle Spindle - CORRECT ANSWER Send information to nervous system about muscle
length and/or rate of change of length. Helps contro posture.
,Golgi tendon organs - CORRECT ANSWER Receptors sensitive to change in tension of
the muscle and the rate of that change
Glenohumeral Joint Snapshot - CORRECT ANSWER Convex humeral head into concave
glenoid fossa
Unstable due to the humeral head being bigger than glenoid fossa
Loose packed position: 55 abduction, 30 horz. add
Closed packed position: Abduction and lateral rotation
Capsular pattern: lateral rot. > abduction > medial rot.
Sternoclavicular Joint - CORRECT ANSWER Articulation between the medial end of the
clavicle and the manubrium of the sternum
Loose: Arm resting by side
Closed: Max. shoulder elebation
Capsular: Pain at extreme range of movement
Acromioclavicular Joint - CORRECT ANSWER Acromion process of scapula and lateral
end of clavicle
Loose: Arm resting by side
Closed: 90 degrees abduction
Capsular: Extreme ranges of movement
Scapulothoracic Articulation - CORRECT ANSWER The body of the scapula and the
muscles covering the posterior chest wall. Motion consists of sliding the scapula on the thorax.
Carpal Tunnel Syndrome - CORRECT ANSWER Compression of the median nerve at the
carpal tunnel of the wrist that commonly occurs from repetitive wrist motions, gripping,
pregnancy, RA & diabetes.
, Carpal Tunnel Presentation/Special Tests - CORRECT ANSWER Burning, tingling, pins
and needles
Long term compression causes atrophy of thenar muscles and lateral 2 limbricals.
Tinel's sign and Phalen's Test
DeQuervain's Tenosynovitis - CORRECT ANSWER Inflammation of the abductor pollicis
longus and extensor pollicis brevis tendons of the thumb.
Pain at anatomical snuff box
Finklestein's test
(Texter's thumb)
Colle's Fracture - CORRECT ANSWER Most common wrist fracture resulting from
falling on outreached UE. Fracture of distal end of radius posteriorly
"Dinner fork deformity"
Smith's Fracture - CORRECT ANSWER Fracture of the distal radius with volar
displacement (Cause of injury same as Colle's)
Scaphoid Fracture - CORRECT ANSWER A break in the scaphoid bone in the thumb
Commonly occurs from a fall onto an outstretched hand in a younger person.
Dupuytren's Contracture - CORRECT ANSWER Fibromatosis of palmar fascia typically
causes finger flexion of 4th and 5th digits.
"Gang Sign"
Boutonniere Deformity and Presentation - CORRECT ANSWER A tear of the extensor
tendon of the PIP joint.
Flexion of PIP joint and extension of MCP & DIP