Wrist and Hand Quiz

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Which extrinsic wrist muscle inserts on the anterior side of the distal interphalangeal joint and acts on both the wrist and phalanges 2-5?

Flexor digitorum profundus

Which muscle causes movement of the thumb?

Flexor pollicis longus

Which wrist ligament wraps around the anterior surface and acts to hold the flexor tendons in place?

Flexor retinaculum

Where are extrinsic muscles of the hand and wrist located?

Forearm

Abduction (radial deviation/flexion) and adduction (ulnar deviation/flexion) of the wrist occur in which plane of motion?

Frontal

What is the name of the finger joint between the proximal phalanx and the middle phalanx?

Proximal interphalangeal joint (PIP)

The 8 carpal bones of the wrist are: scaphoid, lunate, triquetrum, pisiform, trapezium, trapezoid, capitate and hamate

True

Which muscle extends the 5th finger concentrically?

extensor digiti minimi

Which muscle group is responsible for producing the powerful gripping movements of the hand?

Extrinsic flexors

Like the other fingers, the thumb has a proximal, middle, and distal phalanx

False


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