Cubital Fossa, Forearm and Wrist Flashcards Preview

Medicine, Year 2, Block 12 (Neurological, Neuromuscular, and MSK Diseases) > Cubital Fossa, Forearm and Wrist > Flashcards

Flashcards in Cubital Fossa, Forearm and Wrist Deck (20):
1

What are the three borders of the triangular cubital fossa?

Lateral border: Medial border of Brachio-radialis

Medial border: Lateral border of Pronator teres

Superior border: Imaginary line between epicondyles

2

What are the 4 components of the Cubital fossa?

1. Median nerve
2. Brachial artery (divides into radial and ulnar arteries)
3. Biceps brachii tendon
4. Deep branch of radial nerve

3

The forearm can be divided into two compartments, what are they?

1. Anterior flexor compartment
2. Posterior extensor compartment

4

In the superficial layer of the Anterior flexor compartment, what is the common flexor origin?

Medial epicondyle

5

In the superficial layer of the Posterior extensor compartment, what is the common extensor origin?

Lateral epicondyle

6

Tennis Elbow affects which epicondyle?

Lateral epicondyle

7

Falling on an outstretched hand commonly damages which wrist bone?

Scaphoid

8

How many muscles are in the Extensor / Posterior compartment of the forearm? Which of these are in the Superficial and deep compartments?

12
6, 6

9

What are the muscles in the Superficial compartment of the Extensor / Posterior compartment of the forearm?

Brachioradialis
Extensor carpi radialis longus
Extensor carpi radialis brevis
Extensor digitorum
Extensor digiti minimi
Extensor carpi ulnaris

10

What are the muscles in the Deep compartment of the Extensor / Posterior compartment of the forearm?

Anconeus
Supinator
Abductor pollicis longus
Extensor pollicis longus
Extensor pollicis brevis
Extensor indicis

11

What nerve(s) innervate the Extensor compartment of the Forearm?

Radial nerve

12

How many muscles are in the Flexor / Anterior compartment of the forearm? Which of these are in the Superficial, intermediate and deep compartments?

8
4, 1, 3

13

What are the muscles in the Superficial compartment of the Flexor / Anterior compartment of the forearm?

PFPF

Pronator teres
Flexor carpi radialis
Palmaris longus
Flexor carpi ulnaris

14

What are the muscles in the Intermediate compartment of the Flexor / Anterior compartment of the forearm?

Flexor Digitorium Superficialis

15

What are the muscles in the Deep compartment of the Flexor / Anterior compartment of the forearm?

Flexor Digitorum Profundus
Flexor Pollicis longus
Pronatur Quadratus

16

What nerve(s) innervate the Flexor compartment of the Forearm?

Median nerve for all, except Flexor Carpi Ulnaris and 1/2 Flexor Digitorum Profundus which is Ulnar nerve

17

What comprises the roof of the Carpal tunnel?

Flexor retinaculum

18

What are the contents of the Carpal tunnel?

9 tendons:
1 Flexor pollicis longus
4 Flexor digitorum superficialis
4 Flexor digitorium profundus

Median nerve

19

Why would Carpal Tunnel Syndrome cause Thenar wasting?

CTS causes Median nerve compression, leading to Thenar wasting which is supplied by the median nerve

20

What is the acronym for the bones of the wrist?

Some lovers try positions that they cannot handle