Question 57 Which conditions can be best demonstrated in an anteroposterior (AP) axial projection of the thumb? Select all that apply. Osteoarthritis Bennett fracture Fracture or dislocation of the first carpometacarpal joint Fracture or dislocation of the first metacarpophalangeal joint Sprain of the ulnar collateral ligament of the thumb at the metacarpophalangeal joint
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1. scaphoid a. the most commonly dislocated carpal bone 2. lunate b. a tear of the flexor tendon at the distal phalanx 3. mallet finger c. located in the anatomical snuffbox 4. jersey finger d. occurs at the proximal interphalangeal joint 5. boutonniere deformity e. an avulsion fracture of the distal phalanx
Sri K.
Contrast the characteristics of the acetabulum and glenoid fossa, and how this influences the mobility and stability of their associated articulations (4 points). Match the following injuries to the most likely consequence (2 points each).
Adi S.
8. Articulations a. Match the type of joint with the articulation formed by the bones. 1) Immovable 2) Slightly movable 3) Ball-and-socket 4) Condylar 5) Plane 6) Hinge 7) Pivot 8) Saddle Femur-tibia Frontal-parietal Humerus-scapula Vertebra-vertebra (between bodies of vertebrae) Atlas-axis Carpal-carpal Trapezium-metacarpal 1 Coxal-femur Maxilla-zygomatic Metacarpal-phalanx b. Match the movements with the descriptions. 1) Abduction 2) Adduction 3) Depression 4) Elevation 5) Extension 6) Flexion 7) Dorsiflexion 8) Plantar flexion 9) Eversion 10) Inversion 11) Circumduction 12) Rotation 13) Pronation 14) Supination 15) Protraction 16) Retraction Opposite of dorsiflexion. Pushing mandible anteriorly. Movement toward midline. Straightening upper limb at elbow. Turning palm of hand superiorly. Turning head from side to side. Decrease in angle of joint. Raising shoulders. Moving arm in a circle. Turning sole of foot medially. 9. Disorders of the Skeletal System Write the name of each disorder described in the space provided. 1) Displacement of bones forming a joint. 2) A lateral curvature of vertebral column. 3) Protrusion of intervertebral disc. 4) Bone broken into several pieces. 5) Broken bone pierces through skin. 6) Arthritis with invasion of dense irregular connective tissue that calcifies, making joint immovable. 7) Tearing of ligaments of joint capsule. 8) Severe loss of bone matrix from bones. 10. Clinical Insights a. A member of the soccer team is diagnosed with a dislocated thumb. What is this injury, and do you expect it to drastically alter the players ability to play soccer? Explain your answer. b. Specifically, what is a broken hip? Why is it more common among older persons?
Madhur L.
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