Ulnar Nerve Pathway

Question 1

Where does the Ulnar nerve pathway originate (exit SC)?

2

Answer 1

VIA BRACHIAL PLEXUS
from
C8 - T1 NERVE ROOTS

Question 2

Name the complete list of where the Ulnar nerve travels?

7

Answer 2

1. MEDIALLY DOWN THE ARM
2. BESIDE BICEPS BRACHII
3. PASSES POSTERIOR TO MEDIAL EPICONDYLE at ELBOW through the CUBITAL TUNNEL
4. TRAVELS DOWN MEDIAL FOREARM
5. UNDER FLEXOR CARPI ULNARIS
6. TRAVELS INTO WRIST UNDER THE PISIFORM
7. THEN THE TUNNEL OF GUYON

Question 3

Name the first 4 steps of where the Ulnar nerve travels?

Answer 3

1. MEDIALLY DOWN THE ARM
2. BESIDE BICEPS BRACHII
3. PASSES POSTERIOR TO MEDIAL EPICONDYLE at ELBOW through the CUBITAL TUNNEL
4. TRAVELS DOWN MEDIAL FOREARM

Question 4

Name the final 3 steps of where the Ulnar nerve travels?

Answer 4

5. UNDER FLEXOR CARPI ULNARIS
6. TRAVELS INTO WRIST UNDER THE PISIFORM
7. THEN THE TUNNEL OF GUYON

Question 5

What does the Ulnar nerve innervate?

2

Answer 5

LATERAL and MEDIAL SURFACE
of
4TH and 5TH FINGERS

Question 6

What are 3 entrapment sites of the Ulnar N?

Answer 6

THORACIC OUTLET
\+
CUBITAL TUNNEL
\+
TUNNEL OF GUYON