Chapter 6

Question 1

Ulna is larger than…. proximally

Answer 1

radius

Question 2

……is medial and ….. is lateral

Answer 2

ulna; radius

Question 3

Elbow movement: ….. serve as proximal attachments for muscles, ……serve as distal attachments
Radioulnar movement: scapula, humerus, and ulna serve as proximal attachments for muscles, radius serves as distal attachment

Answer 3

scapula and humerus; ulna and radius

Question 4

the Hinge joint or in other words the elbow joint has two main actions.. What are they?

Answer 4

flexion; extension

Question 5

Articulations that form the elbow joint are…

Answer 5

radioulnar and humeroulnar joint

Question 6

Radial head has small amount of contact with the …… of the humerus

Answer 6

capitilum

Question 7

humeral trochlear fitting into the ….

Answer 7

humeral trochlear fitting into the ulna trochlear notch

Question 8

Flexion and extension primarily involve movement between…..

Answer 8

humerus and ulna

Question 9

As the elbow reaches full extension, the ……process is received by the ……ossa

With the elbow in full flexion, the …… process fits into the …..fossa

Answer 9

olecranon process; olecranon fossa

coracoid process; coracoid fossa

Question 10

one importat ligament of the elbow is …

Answer 10

Ulnar collateal ligament

Question 11

is critical in providing medial support to prevent
the elbow from abducting
when stressed during
physical activity

Answer 11

Ulnar collateral ligament

Question 12

ulnar collaterial ligament prevents what movement of the

Answer 12

abducting

Question 13

What is the classfication of the radioulnar joint

Answer 13

Pivot joint

Question 14

What is the articulation of the radioulnar joint?

Answer 14

Proximal radius with proximal ulna, and distal radius with distal ulna

Question 15

Radioulnar joint . Shafts are connected by an …….

Answer 15

interosseous membrane

Question 16

Radioulnar joint is consdiered what ?

Answer 16

considred as Amphiarthrodial syndesmosis joint

Question 17

Movement of forearm to shoulder at elbow in sagittal plane

Answer 17

Flexion

Question 18

Movement of forearm away from shoulder at elbow in sagittal plane

Answer 18

Extension

Question 19

movement past 0° starting point, slight movement possible (0°-15°)

Answer 19

Hyperextension

Question 20

External rotary movement at radioulnar joint
From palm-down to palm-up
ROM: 80°-90° from neutral

Answer 20

Supination

Question 21

Internal rotary movement at radioulnar joint ROM: 70°-90° from neutral
From palm-up to palm-down

Answer 21

Pronation

Question 22

Decribe the arm in anatomical postion and fundamental postion

Answer 22

In anatomical postion the arm is supinated

in fundamental postion. the arm is pronated or or neutral