Elbow Anatomy/Injuries

Question 1

What are the 2 muscles of the upper arm that act on the Humerus

Answer 1

• Biceps Brachii

- Triceps Brachii

Question 2

What are the 2 muscle groups of the forearm that act of the wrist?

Answer 2

• Wrist Flexors

- Wrist Extendors

Question 3

What action does the Biceps Brachii perform on the elbow?

Answer 3

Flexion

Question 4

What action does the Triceps Brachii perform on the elbow?

Answer 4

Extension

Question 5

Are most injuries to the elbow acute or from overuse?

Answer 5

Overuse

Question 6

What is another name for Medial Epicondylitis?

Answer 6

Little League Elbow/ inflammation of wrist flexor tendons

Question 7

What is another name for Lateral Epicondylitis?

Answer 7

Tennis Elbow

Question 8

What are the 2 ligaments that get sprained in the elbow? Which one is more common?

Answer 8

1. RCL ( Radial Collateral Ligament)

2. UCL (Ulnar Collateral Ligament)- Most Common

Question 9

What is the top of the Radius called?

Answer 9

Head of Radius

Question 10

What is the top of the Ulna called?

Answer 10

Olecranon

Question 11

What is the membrane in between the Radius and Ulna?

Answer 11

Interosseous Membrane

Question 12

What are the 3 bones of the elbow?

Answer 12

• Humerus
• Radius
• Ulna

Question 13

What are the 3 ligaments of the elbow?

Answer 13

• RCL (Radial Collateral Ligament)
• UCL (Unlar Collateral Ligament)
• Anular Ligament

Question 14

Are Fractures of the Humerus a medical emergency?

Answer 14

yes

Question 15

Is an elbow dislocation a medical emergency?

Answer 15

yes

Question 16

Which part of Nerve Innervation is from the pinky to the middle of the ring finger?

Answer 16

Ulnar Nerve

Question 17

Which part of Nerve Innervation is from the middle of the ring finger to the middle of the thumb?

Answer 17

Median Nerve

Question 18

Which Part of Nerve Innervation is from the middle of the thumb to the rest of your hand?

Answer 18

Radial Nerve

Question 19

Where is the RCL?

Answer 19

On the epicondyle on the radius side

Question 20

Where is the UCL?

Answer 20

On the epicondyle and ulna

Question 21

Where is the Annular Ligament?

Answer 21

On the Radius side connecting the head of the radius to the olecrenon

Question 22

What kind of joint is the elbow?

Answer 22

Hinge joint

Question 23

What does the RCL do?

Answer 23

Prevents Varus force

Question 24

What does the UCL do?

Answer 24

Prevents Valgus force

Question 25

What does the Annular ligament do?

Answer 25

Encircles the head of the radius and attaches to ulna

Question 26

Supinator and Biceps Brachii do what?

Answer 26

Supination

Question 27

Pronator Teres and Pronator Quadratus do what?

Answer 27

Pronation

Question 28

Wrist Flexors

Answer 28

attach at medial epicondyle of humerus

Question 29

Wrist Extenders

Answer 29

attach at lateral epicondyles of humerus

Question 30

Ligament Injuries

Answer 30

1-3 Sprains | RICE

Question 31

UCL Injury

Answer 31

- most common - stress placed on elbow - direct blow - Valgus stress

Question 32

Bone Fracture

Answer 32

- to distal end of humerus - not common - due to very powerful mechanisms of injury

Question 33

Epiphyscal & Avulstion Fracture

Answer 33

- more common on medial epicondyle or Olecranon | - severe pain and deformity

Question 34

Ulna Dislocation

Answer 34

- tight joint - very traumatic - violent hyperextension

Question 35

Olecranon Bursitis

Answer 35

- fluid build up at the tip of elbow

Question 36

Elbow Flexor Strain

Answer 36

overuse/ resistive forces

Question 37

Elbow Extensor Strain

Answer 37

Excessive resistance during wrist flexion