Wrist Vocab

Question 1

What is hook of hamate (hamulus)?

Answer 1

Found at the proximal, ulnar side of hamate forming the ulnar border of carpal tunnel and radial border for Guyon’s

Question 2

Where is Guyon’s/Ulnar canal?

Answer 2

Allows passage of ulnar nerve and artery into the hand (approx 4 cm)

Question 3

What are the four wrist bones surrounding the synovium?

Answer 3

Scaphoid, Capitate, Triquetral, Pisiform (Thumb to pinky)

Question 4

Which nerve serves as the “funny bone?”

Answer 4

Ulnar nerve

Question 5

Which nerve passes through the carpal tunnel?

Answer 5

Median nerve

Question 6

What is another name for the scaphoid?

Answer 6

Navicular

Question 7

What lies between pisiform and scaphoid?

Answer 7

Lunate

Question 8

What bones lie under 1st and 2nd metacarpel (respectively)?

Answer 8

Trapezium, trapezoid

Question 9

Where does the hamate bone lie?

Answer 9

Below the 4th and 5th metacarpal

Question 10

What is the extensor retinaculum?

Answer 10

The thickened part of antebrachial fascia that holds the tendons of the extensor muscles in place (also called dorsal carpal ligament/posterior annular ligament)

Question 11

What is the flexor retinaculum?

Answer 11

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