The Wrist, Hand, & Fingers

Skills Lab #4: Palpations

Instructions

1. Palpate the anatomical structures on your partner

2. Label the structures using various colored pens

1. Use a different color for each aspect, or a different color for bones, muscles, ligaments, etc.

2. Mark each with #s for easier identification

Anterior Palpations (Palmar)Skeletal

1. Radial styloid process2. Ulnar styloid process3. Pisiform4. Hamate (hook)5. Lunate6. Scaphoid7. 1st MCP joint

12

34

5 6

7

Anterior Palpations (Palmar)Soft Tissue

1. Flexor carpi radialis2. Palmaris longus3. Flexor carpi ulnaris4. Thenar eminence5. Hypothenar eminence6. Thenar webspace

1 2 3

4 5

6

Posterior Palpations (Dorsal)Skeletal

1. Metacarpals3. Phalanges9. Ulnar head10. Ulnar styloid process12. Radial styloid process

A. ScaphoidB. TrapeziumC. LunateD. TriquetrumE. Pisiform (anterior)F. HamateG. CapitateH. Trapezoid

Posterior Palpations (Dorsal)Soft Tissue

2. Collateral ligaments of MCPs(RCL & UCL of each digit)

4. Collateral ligaments of IPs(RCL & UCL of each joint)

6. Thenar webspace11.Ulnar collateral ligament of the wrist14.Radial collateral ligament of the wrist

Posterior Palpations (Dorsal)Soft Tissue

1. Extensor carpi ulnaris2. Extensor carpi radialis brevis3. Extensor carpi radialis longus4. Extensor digitorum

1

2

3

4

Posterior Palpations (Dorsal)Soft Tissue

1. Abductor pollicis longus & extensor pollicis brevis

2. Extensor pollicis longus3. Scaphoid

1 23

REVIEW QUESTIONS(2pts each)

1. Describe how to best palpate the muscles that flex the wrist.

2. Describe how to differentiate between the wrist extensors and the extensor digitorum muscle.

3. What is the term for the area between the APL/EPB and EPL muscles? What bone is located within that area?

ANSWERS1. _____________________________________

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2. ____________________________________________________________________________________________________________________________________________________

3. ____________________________________________________________________________________________________________________________________________________