LRA -217 Week 2

Question 1

what are the 3 concentric arcs int he elbow joint?

Answer 1

• Trochlear sulcus
• Outer ridges of Capitulum and Trochlea
• Trochlear notch of ulna

Question 2

what category of joint is the elbow?

Answer 2

• synovial
• diarthrodial

Question 3

what type of joint is the elbow?

Answer 3

• ginglymus/hinge joint

Question 4

what type of joint is the proximal radioulnar?

Answer 4

• trochoidal/pivot joint

Question 5

what carpal bones can we see when positioning in an ulnar deviation?

Answer 5

Scaphoid

Question 6

what carpal bones can we see when positioning in a radial deviation?

Answer 6

• Lunate
• Triquetrum
• Pisiform
• Hamate

Question 7

define a Supinated movement

Answer 7

• palm facing up
• radius and ulna bone are parallel

Question 8

define a pronated movement

Answer 8

• palm facing down
• radius and ulna bone cross over each other

Question 9

what are the 3 fat pads/stripes in the elbow joint?

Answer 9

• anterior fat pad
• Posterior fat pad
• Supinator fat pad

Question 10

how many radioulnar joints are there?

Answer 10

• 2
• proximal radialulnar
• distal radioulnar

Question 11

where is the head of the radius located at?

Answer 11

• elbow

Question 12

where is the head of the ulna located at?

Answer 12

• wrist

Question 13

where is the radial notch located?

Answer 13

• on the ulna

Question 14

where is the ulna head located?

Answer 14

• on the radius

Question 15

define the olecranon process

Answer 15

• it creates the elbow
• make the bump

Question 16

when radiographing hands, how must the image layout come out?

Answer 16

• at the top of the image, the fingers should be visible
• at the bottom of the image, the wrist should be visible
• distal on top, proximal at the bottom

Question 17

when radiographing the forearm or elbow, how must the image layout be?

Answer 17

• downward
• humerus will be facing downward
• forearm will be facing downward
• proximal on top, distal at the bottom