Test 1, Ch. 5

Question 1

All angles on hand, wrists, digits are:

Answer 1

zero degrees

Question 2

How many phalanges are there in each hand?

Answer 2

14 ( in each hand )

Question 3

The hand consists of _____ bones.
Which are subdivided into three groups, name the groups.

Answer 3

27

Phalanges (Bones of the digits)
Metacarpals (Bones of the palm)
Carpals (Bones of the wrist)

Question 4

The thumb is always known as the:

Answer 4

first digit

Question 5

The third metacarpal of the hand articulates with the:

Answer 5

Capitate ( largest & most centrally located carpal bone )

Question 6

How many phalanges are in the thumb?

Answer 6

2

Question 7

The first bone located on the proximal row of the lateral side of the wrist is the:

Answer 7

scaphoid

Question 8

The wrist has _____ carpal bones, which are fitted closely together and arranged in two horizontal rows.

Answer 8

8

4 in the Proximal row (row nearest to the forearm)

4 in the Distal row

Question 9

The palm of the hand is formed by ______ , which are cylindrical in shape and slightly concave anteriorly.

Answer 9

Five metacarpals

Question 10

What is the largest carpal bone?

Answer 10

Capitate , and most centrally located

Question 11

Tenderness in the snuff-box area is a clinical sign suggesting fracture of the _____ , which is the most commonly fractured carpal bone.

Answer 11

Scaphoid

Question 12

The carpal bones articulates with this bone:

Answer 12

metacarpals (distally) or radius (proximal)

Question 13

What joint is between the phalanges and the metacarpals?

Answer 13

MCP joints

Question 14

The most commonly fractured carpal bone?

Answer 14

Scaphoid

Question 15

How many degrees is the hand rotated for an AP oblique projection?

Answer 15

45 degrees

Question 16

The most common projection for the 2nd through 5th digit is this type of projection; with this type of rotation.

Answer 16

PA with external rotation

Question 17

What joint is seen only on an x ray of the first digit?

Answer 17

CMC joint
( the joint at the base of the thumb where the thumb bone meets the wrist bone )

Question 18

For a PA of the 2nd digit, the central ray is directed to the ____ joint.

Answer 18

PIP Joint

Question 19

For a PA projection of the first digit the hand is positioned in which position:

Answer 19

Pronation

Question 20

What should be in contact with the table top for a PA of the wrist?

Answer 20

arm, axilla, and forearm

Question 21

The metacarpals articulate distally with these:

Answer 21

Proximal Phalanges

Question 22

For a PA wrist, where does the CR enter?

Answer 22

mid carpal area

Question 23

Flexing the fingers for a PA of the wrist; does what?

Answer 23

moves carpal bones closer to the IR

Question 24

For a PA of the hand, the central ray enters:

Answer 24

3rd MCP

Question 25

What’s the primary projection used to demonstrate anterior and posterior displacement?

Answer 25

True Lateral

Question 26

For all oblique hands, wrists, fingers; what is the degree?

Answer 26

45 degrees

Question 27

We use 45 degree wedges but we don’t use 45 degree _____

Answer 27

blocks

Question 28

For a lateral projection of the wrist, the elbow must be flexed _____

Answer 28

90 degrees

Question 29

A fracture at the base of the first metacarpal is called a _____ fracture.

Answer 29

Bennett

Question 30

A fracture of the metacarpal neck is called a _____ fracture.

Answer 30

Boxers

Question 31

The _____ articulations between phalanges are _____ type and only allow flexion and extension.

Answer 31

• Interphalangeal
• Synovial Hinge

Question 32

What anatomy is not well demonstrated when a PA oblique hand is performed?
( Fill in the blank, on Test)

Answer 32

• All Digits
• 3rd-5th Metacarpals

Question 33

There will be a picture and you will say what type of joint it is; Hinged, Synovial, Pivot

Answer 33

Synovial- the joint connecting the radius bone in the forearm to the carpal bones in the wrist

Hinged- between the individual phalange bones

Pivot- joint of the wrist that allows the palm of the hand to be turned up and down

Question 34

For a lateral projection of the hand, the central ray is directed?

Answer 34

Perpendicular to the second MCP joint

Question 35

Hinged Joint

Answer 35

A hinged joint is a type of synovial joint that allows movement in one plane, similar to a door hinge.

• Hinge joints are found in many parts of the body, including the fingers, toes, knees, elbows, and ankles

Example: interphalangeal joints of the hand

Question 36

Synovial

Answer 36

Allow only flexion and extension

Example: Wrist Joint, Elbow Joint , Thumb Joint etc.

Question 37

Pivot Joint

Answer 37

a specific type of joint where a cylinder-shaped bone is joined to a ring-shaped bone, and the cylinder-shaped bone is able to rotate inside the ring-shaped bone in a single axis

• Examples: Wrist Joint (allows the palm of the hand to move up and down)
• A another prime example of a pivot joint in the human body is the joint between the first and second cervical vertebrae in the neck

Question 38

How much wrist rotation is required for the PA oblique projection, lateral rotation position of the wrist?

Answer 38

45 degrees

Question 39

Which digit of the hand does not have a PIP or a DIP?

Answer 39

Thumb ( First Digit )

Question 40

Which carpal bone must be included when taking a projection of the first digit?

Answer 40

Trapezium Carpal Bone

Question 41

The articulations between the lunate and scaphoid are a form of a ______ joint.

Answer 41

Gliding

Question 42

The articulations between the 2-5th metacarpals and the trapezoid, capitate, and hamate as well as the inter-carpal articulations form _____ joints.

Answer 42

synovial gliding

Question 43

For a lateral projection of the second through fifth digits, the central ray is directed:

Answer 43

0 degrees