Week 7: Movements of the elbow & wrist

Question 1

Answer 1

Question 2

Answer 2

Question 3

Answer 3

Question 4

Elbow joint: Type, articulation, uniaxial

Answer 4

Synovial hinge joint

humero-ulnar

humero-radial

proximal radio-ulnar

Question 5

Answer 5

Question 6

Answer 6

Question 7

Biceps Brachii function, attachment and NS?

Answer 7

Proximal:
Long head: supraglenoid tubercle of the scapula
Short head: coracoid process of scapula
Distal: radial tuberosity

Action: forearm supination and elbow flexion; shoulder flexion

NS: musculocutaneous

Question 8

Brachialis Func, Attach and NS?

Answer 8

P.A: anterior surface of distal 1/2 of humerus
D.A: coronoid process and ulnar tuberosity

A: ebow flexion

NS: musculocutaneous and radial

Question 9

Coracobrachialis FANS?

Answer 9

P.A: coracoid process of scapula
D.A: middle 1/3 medial surface of humerus

Action: shoulder flexion and adduction

NS: musculocutaneous

Question 10

Triceps Brachii FANS?

Answer 10

Proximal:
Long head: infraglenoid tubercle of scapula
Lateral head: posterior humerus superir to radial groove
Medial head: posterior humerus inferior to radial groove

Distal: olecranon process of ulna

Action: Elbow extension

NS: Radial n.

Question 11

Anconeus FANS?

Answer 11

P.A: lateral epicondyle of humerus
D.A: olecranon process and superior posterior surface of ulna

Action: elbow extension; dynamic stabilsier of elbow

NS; radial nerve

Question 12

Proximal Radio-ulnar joint components and type?

Answer 12

Synovial pivot joint

Anular ligament
head of radius
Radial notch of ulna

Question 13

Distal radio-ulnar joint compentents and type?

Answer 13

Synovial pivot joint

Head of Ulnar

Ulnar noch of radius

articular disc

Question 14

Answer 14

Question 15

radio carpal articulations and type?

Answer 15

Synovial condyloid joint

Palmar radiocarpal
Dorsal radiocarpal
Ulnar collateral
Radial collateral