Download Kinesiology_Lab_files/Lab 9. Elbow, Wrist and Hand

Lab 9
Anatomy of Elbow /Radio-Ulnar Joints
M ATERI ALS

human torso model
•
Upper extremity models
•
human skeleton
•
Visible Body Application
•
Anatomage dissection table
•
textbook and lecture notes for reference
O BJECTIVES
Upon the completion of these laboratory exercises, you should be able to:
1. Identify various anatomical structures of the elbow and wrist joints.
2. Identify the muscles of the elbow and wrist joints.
3. Apply biomechanical principles to the elbow and wrist joints.
4. Identify origin, insertion, nerve innervation of the muscles of the elbow and wrist joints.
Key Muscles of the Forearm
biceps brachii
brachialis
triceps brachii
pronator teres
flexor carpi radialis
palmaris longus
flexor carpi ulnaris
flexor digitorum superficialis
flexor digitorum profundus
flexor pollicis longus
pronator quadratus
brachioradialis
supinator
Extrinsic Hand Muscles
abductor pollicis longus
extensor pollicis brevis
extensor pollicis longus
flexor pollicis brevis
opponens pollicis
adductor pollicis
lumbricales
palmar interossei
dorsal interossei
Exercise 1.
Review the following muscles on the Visible Body Application. Apply
the proper nerve innervation and muscle actions.
1. Biceps brachii
a.
b.
c.
d.
Origin: supraglenoid tuberical of scapula, coranoid process
Insertion: radial tuberosity
Nerve innervation: musculocutaneous (C5, 6)
Actions:
2. Brachialis
a.
b.
c.
d.
Origin: distal anterior shaft of humerus
Insertion: coronoid process of ulna
Nerve innervation: musculocutaneous
Actions:
(C5, 6)
3. Anconeus
a.
b.
c.
d.
Origin: posterior lateral condyle of the humerus,
Insertion: posterior ulna
Nerve innervation: radial (C6,7,8)
Actions:
4. Triceps brachii
a.
b.
c.
d.
Origin: infraglenoid tubercle of scapula, posterior humerus
Insertion: olecranon process
Nerve innervation: radial (C7,8)
Actions:
5. Supinator
a.
b.
c.
d.
Origin: lateral condyle of the humerus, proximal lateral ulna
Insertion: lateral radius
Nerve innervation: radial (C6,7,8)
Actions:
6. Pronator teres
a.
b.
c.
d.
Origin: medial epicondyle of humerus, medial proximal ulna
Insertion: middle 3rd of lateral humerus
Nerve innervation: median (C6,7)
Actions:
7. Flexor carpi radialis
a.
b.
c.
d.
Origin: medial epicondyle of humerus
Insertion: base of the 2 and 3rd metacarpal
Nerve innervation: median (C6,7)
Actions:
8. Palmaris longus
a.
b.
c.
d.
Origin: medial epicondyle of humerus
Insertion: palmer aponeurosis of 2-5 metacarpals
Nerve innervation: median (C6,7)
Actions:
9. Flexor carpi ulnaris
a.
b.
c.
d.
Origin: medial epicondyle of humerus
Insertion: pisiform, hamate and 5th metacarpal
Nerve innervation: ulnar (C8, T1)
Actions:
10. Flexor digitorum superficialis
a.
b.
c.
d.
Origin: medial epicondyle of humerus, ulna head, upper 2/3 radius
Insertion: split tendons attach to the sides of the middle phalanx of the palmar
surface of the 4 fingers
Nerve innervation: median (C7,8, T1)
Actions:
11. Flexor digitorum profundus
a.
b.
c.
Origin: ¾ anterior medial surface of ulna
Insertion: base of distal phalanxes of the 4 fingers
Nerve innervation: medial part-ulnar (C8, T1),lateral
part- median (C8,
T1)
d.
Actions:
12. Flexor pollicis longus
a.
b.
c.
d.
Origin: middle anterior surface of radius, proximal medial ulna
Insertion: base of distal phalanx of thumb
Nerve innervation: median (C6,7)
Actions:
13. Pronator quadratus
a.
b.
c.
d.
Origin: distal ulna
Insertion: distal radius
Nerve innervation: median
Actions:
(C8, T1)
14. Brachioradialis
a.
b.
c.
d.
Origin: upper 2/3 supra condyloid ridge of humerus
Insertion: styloid process of radius
Nerve innervation: radial (C5, 6)
Action: