Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

ESA 2- Musculoskeletal System > Radius > Flashcards

Radius Flashcards

1
Q

What is the radius?

A

A long bone in the forearm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

Where does the radius lie?

A

Laterally and parallel to the ulna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

What does the radius do?

A

Pivots around the ulna at the proximal and distal radio-ulnar joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

Where does the radius articulate?

A

Elbow joint
Proximal radioulnar joint
Wrist joint
Distal radioulnar joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What is the elbow joint formed by?

A

Partly, an articulation between the head of the radius and the capitulum of the humerus

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What forms the proximal radioulnar joint?

A

An articulation between the radial head and the radial notch of the ulna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

What forms the wrist joint?

A

An articulation between the distal end of the radius and the carpal bones

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

What forms the distal radioulnar joint?

A

An articulation between the ulnar notch and the head of the ulna

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

Where does proximal end of the radius articulate?

A

In the elbow and proximal radioulnar joints

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

What are the important landmarks of the proximal region of the radius?

A

Head
Neck
Radial tuberosity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

What shape is the head of the radius?

A

Disk shaped, with a concave articulating surface.

Thicker medially

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

What does the head of the radius take part in?

A

The proximal radioulnar joint

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

What is the neck of the radius?

A

A narrow area of bone

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

Where does the neck of the radius lie?

A

The radial head and radial tuberosity

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

What is the radial tuberosity?

A

A bony projection

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

What does the radial tuberosity serve as?

A

The place of attachment of the biceps brachii muscle

17
Q

What happens to the radial shaft as it moves distally?

A

It expands in diameter

18
Q

What shape is the shaft of the radius?

A

Triangular

19
Q

What does the shaft of the radius have?

A

Three borders and three surfaces

20
Q

What is in the middle of the lateral surface of the radial shaft?

A

A small roughening for the attachment of the pronator teres muscle

21
Q

What happens to the radius in the distal region?

A

It expands to form a rectangular end

22
Q

What happens to the lateral side of the distal region of the radius?

A

It projects distally as the styloid process

23
Q

What is in the medial surface of the distal region of the radius?

A

A concavity called the ulnar notch

24
Q

What does the ulnar notch do?

A

Articulates with the head of the ulna

25
Q

What is formed when the ulnar notch articulates with the head of the ulna?

A

The distal radioulnar joint

26
Q

What does the distal surface of the radius have?

A

Two facets for articulation with the scaphoid and lunate carpal bones

27
Q

What is formed with the articulation of the radius and carpal bones?

A

The wrist joint

28
Q

What are the common fracture types involving the radius?

A

Colles’ fracture
Fractures of the radial head
Smith’s Fracture

29
Q

What is the most common type of radial fracture?

A

Colles’ fracture

30
Q

What causes Colles’ fracture?

A

A fall onto an outstretched hand

31
Q

What happens in a Colles’ fracture?

A

A fracture of the distal radius The structures distal to the fracture (wrist and hand) are displaced posteriorly

32
Q

What does a Colles’ fracture produce?

A

A ‘dinner fork’ deformity

33
Q

What are fractures of the radial head characteristically due to?

A

Falling on an outstretched hand

34
Q

What happens in fractures to the radial head?

A

The radial head is forced into the capitulum of the humerus, causing it to fracture

35
Q

What causes a Smith’s fracture?

A

Falling onto the back of the hand

36
Q

What happens in Smith’s fracture?

A

The distal fragment is now placed anteriorly

ESA 2- Musculoskeletal System (69 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions