Elbow Joint

Question 1

Joint of the Elbow

Answer 1

-Humeroulnar Joint- humerus and ulnar (hinge)
-Humeroradial Joint- humerus and radius (axial)

Question 2

Movement of Joints

Answer 2

-Humeroulnar Joint- flexion and extension
-Humeroradial Joint- pronation and supination

Question 3

Carrying angle of the elbow

Answer 3

-Commonly 5-15 degrees
-Women have larger carrying angles
-Allows arm to swing without contacting hips/provides space to carry objects at sides

Question 4

Biceps brachii

Answer 4

Flexion of elbow, supination of forearm

Question 5

Triceps brachii

Answer 5

-Only the long head of triceps crosses 2 joints
-Extension of elbow

Question 6

Brachialis

Answer 6

-Origin: distal anterior humerous
-Insertion: ulnar tuberosity
-Largest cross-sectional area, enabling generation of greatest amount of peak force