Elbow and forearm

Question 1

What is the structure on the distal end of the humerus called

Answer 1

Epicondyle

Question 2

Which bone articulates with capitulum of the humerus?

Answer 2

Radius at head of radius

Question 3

What are the articulating surfaces in the elbow joint?

Answer 3

Trochlear notch of ulna with trochlea of humerus

Question 4

What type of joint is the radioulnar joints

Answer 4

Pivot

Question 5

What are the articulating surfaces withe the radioulnar joint

Answer 5

Radial notch of ulna which articulates with medial head of radius

Question 6

What type of joint is the elbow joint

Answer 6

Synovial hinge joint

Question 7

What movements are possibleat the elbow joint

Answer 7

Flexion and extension

Question 8

Which 4 muscles work to flex thie elbow joint?

Answer 8

Biceps brachi, brachioradialis, brachialis and assisted by pronator teres

Question 9

What are the points of origin and insertion for biceps brachii

Answer 9

Scapula to radius

Question 10

Which muscles work to extend the elbow?

Answer 10

Triceps brachial, anconeus

Question 11

How many radio ulnar joints are there.

Answer 11

3: superior, Middle but this is interosseous membrane, inferior

Question 12

Which bones work together to supinate and pronate

Answer 12

Radius and ulna

Question 13

Which muscles pronate the arm

Answer 13

Pronator teres (activated if additional force is needed) pronator quadratus (main pronator)

Question 14

Muscles which supination the arm

Answer 14

Supinator, biceps brachii if more force is needed