Chapter 8: Bones of Wrist and Hand

Question 1

What are the proximal row of the carpal bone?

Answer 1

Proximal Row: Lateral to medial:

1. Scaphoid
2. Lunate
3. Triquetrum
4. Pisiform

Question 2

What are the distal row of the carpal bone?

Answer 2

Distal Row: Lateral to medial

1. Trapezium
2. Trapezoid
3. Capitate
4. Hamate

Question 3

The anterior and posterior surfaces are rough for _____________ , with the posterior surfaces being the broadest.

Answer 3

ligament attachment

Question 4

What is the articulation of all carpal bones?

Answer 4

synovial intercarpal joints

Question 5

___________ - is the largest bone in the proximal row and is most frequently fractured at its narrowest part.

Answer 5

scaphoid

Question 6

The scaphoid can also be called:

Answer 6

the navicular bone of the wrist

Question 7

_________ - is the largest bone in the distal row and the largest carpal bone overall.

Answer 7

capitate

Question 8

The anatomical snuff box is on the posterior aspect when thumb is extended. The ________ and _________ form the floor of the snuff box.

Answer 8

scaphoid

trapezium

Question 9

How many bones composes the wrist?

Answer 9

8 small bones

Question 10

How many miniature long bones composes the metacarpal?

Answer 10

5 miniature long bones

Question 11

True or False:

The metacarpals are numbered 1 to 5 from lateral to medial. The 1st Metacarpal is shorter than the rest .

Answer 11

True

Question 12

What is the distal ends (knuckles) of the metacarpals, which has small tubercle on the dorsal surface?

Answer 12

heads

Question 13

The proximal ends of the metacarpals are called:

Answer 13

bases

Question 14

What is the shape of the shafts of each metacarpal?

Answer 14

concave

(medial and lateral sides)

Question 15

There is a styloid process on the posterior lateral part of the base of the ____________ .

Answer 15

3rd metacarpal

Question 16

The ____________ joint at the head (medial side) is a sesamoid bone.

Answer 16

2nd Metacarpal

Question 17

Just like the metacarpals there are also mini long bones. These bones have a body, base (proximal) and head (distal).

Answer 17

Phalanges

Question 18

Each finger is called:

Answer 18

Digit

Question 19

The 1st digit has only _________ (proximal & distal). These are shorter and broader than the other digits. Digits 2 - 5 all have ___________ (proximal, middle and distal).

Answer 19

2 phalanges

3 phalanges

Question 20

True or False:

The distal phalanges are the longest and the proximal phalanges are the shortest.

Answer 20

False

Correct: The proximal phalanges are the longest and the distal phalanges are the shortest.