Joints & Bones
What is the most frequently dislocated carpal bone?
Hamate
Lunate
Trapezium
Trapezoid
Lunate
Which pathology is caused by compression of median nerve and results in symptoms of pain or numbness?
Carpal tunnel syndrome
What plane and axis do wrist flexion and extension occur in?
Sagittal plane and frontal axis
Which of the following is an example of a spherical grip?
A. Holding a soda can
B. Turning a steering wheel
C. Turning a round doorknob
D. Using a hammer
C. Turning a round doorknob
What joint is the arrow pointing at?
(one sec we gotta pull the image up)
Interphalangeal joint of the thumb
What is the most common joint for rheumatoid arthritis to occur at?
A. Proximal interphalangeal joint of the 5th digit
B. Carpometacarpal joint of the thumb
C. Distal interphalangeal joint of the thumb
D. Carpometacarpal joint of the 5th digit
Carpometacarpal joint of the 5th digit
Which of the following muscles does NOT make up the thenar eminence?
A. Abductor pollicis brevis
B. Flexor pollicis brevis
C. Flexor digitiminimi
D. Adductor pollicis
Flexor digitiminimi
Which arch of the hand runs from the wrist to the fingertips?
Longitudinal arch
What joint is considered the “true wrist joint”?
Radiocarpal joint
What is the most frequently fractured carpal bone?
Scaphoid
What is another term for abduction of the thumb?
Palmar abduction
Which of the following is an example of a precision grip?
A. Spherical
B. Lateral
C. Cylindrical
D. Hook
B. Lateral
Which carpal bone makes the bottom of the anatomical “snuff box”?
Scaphoid
What pathology involves inflammation of the synovial fluid/membrane and erosion of bone?
Rheumatoid arthritis
Which of the following muscles is NOT involved in flexion of the 2nd-5th digits?
A. Flexor digitorum superficialis
B. The lumbricals
C. Flexor digitorum profundus
D. Flexor pollicis longus
D. Flexor pollicis longus
Which nerve passes through the Tunnel of Guyron?
A. Radial nerve
B. Median nerve
C. Ulnar nerve
D. All of the above
C. Ulnar nerve
Correct this false statement:
The 4th and 5th CMC joints are the primary stabilizers of the hand.
2nd & 3rd are primary stabilizers
OR
4th and 5th are most mobile
The Swan Neck deformity causes ______ to the PIP and ________ to the DIP (think about movements that can occur at these joints)
Hyperextension to the PIP and flexion to the DIP flexion
Identify the movements occurring in the following power grip:
Cylindrical Grip : Fingers :______ & __________.
Thumb:__________.
Fingers: flexed and adducted
Thumb: opposed
What is the cause of the pathology depicted in the picture?
(pause for the image :)
Radial nerve motor impairment