Elbow, Cubital Fossa, Forearm

Question 1

The Elbow joint has:
\_\_\_ Articulation(s)
\_\_\_ Movement(s)
\_\_\_ Synovial joint cavity(s)

Answer 1

3
2
1

Question 2

The elbow joint consists of these 4 structures:

Answer 2

1. Trochlear Notch of Ulna
2. Trochlear of Humerus
3. Head of Radius
4. Capitulum of Humerus

Question 3

The Proximal Radio-ulnar joint consists of:

Answer 3

Head of Radius

Radial notch of ulna

Question 4

Elbow joint movements:

Answer 4

Hinge-like flexion and extension

Question 5

Proximal Radio-ulnar joint movements:

Answer 5

Pronation and Supination

Question 6

The Radial Collateral Ligament (RCL) resists ____ forces

Answer 6

Varus Forces (from midline)

Question 7

The Ulnar Collateral Ligament (UCL) resists ____ forces

Answer 7

Valgus forces (toward midline)

Question 8

Condition where radial head subluxates (dislocates) from annular ligament. Can happen to children being dangled by arms

Answer 8

Nursemaid Elbow

Question 9

Boundaries of Cubital Fossa:

Answer 9

Base- Imaginary line @ epicondyle area

Lateral- Brachioradialis m.

Medial- Pronator teres m.

Floor- Brachialis m.

Question 10

Contents of Cubital Fossa:

Answer 10

1. Tendon of biceps brachii
2. Brachial artery
3. Median nerve

Question 11

Anterior compartment of forearm innervation:

Answer 11

1. Median n. (Most muscles)

2. Ulnar n. (1.5 muscles

Question 12

Posterior compartment of forearm innervation:

Answer 12

Radial n.

Question 13

Carpel Tunnel contents:

Answer 13

10 Things:

• FDS tendons (4)
• FPL tendon (1)
• FDP tendons (4)
• Median n.

Question 14

Ulnar n. Innervates ______ and ____ of anterior forearm compartment

Answer 14

Flexor Carpi Ulnaris m.

1/2 Flexor Digitorum Profundus m. (Tendons of digits 2 and 3)