1. Wrist Joint
(Radio-Carpal Joint)
and
Hand
Dr. Sama ul Haque

2. Objectives Understand the formation of the wrist joint and its type.
Know the movements taking place at wrist joint.
Explain the articulation of the wrist joint with carpal bones.
Define thenar and hypothenar eminences.
Explain the muscles of the hand in terms of their origin, insertion and nerve supply.
Discuss the actions of the muscles of the hand.
Explain the movements of thumb.
Describe the fascial planes of the hand.

3. Wrist joint and Carpal Bones (Anterior View)
Sally Left The Party To Take Cathy Home

4. Wrist joint and Carpal Bones (Posterior View)

5. Wrist joint
Articulation
Type
Capsule
Ligaments
Movements

6. Wrist joint Articulation: Between
Distal end of the radius and the articular disc above
and
scaphoid, lunate, and triquetral bones below

7. Synovial of Ellipsoid Variety
Wrist joint
Type:
Synovial of Ellipsoid Variety

8. Wrist joint (Capsule and Ligaments)

9. Wrist joint (Capsule and Ligaments)

10. Wrist joint All carpal bones articulate via gliding or plane joints.
A joint exists between proximal row and distal row of bones called mid-carpal Joint (Scaphoid, Lunate and Triquetrum with Trapezium, Trapezoid, Capitate and Hamate).
Pisiform is not involved.

13. Bones of the Hand (Anterior View)

14. Bones of the Hand (Posterior View)

15. Metacarpophalangeal and interphalangeal Joints & ligaments

20. Muscle of the Hand Thenar muscles:
1. Abductor Pollicis brevis, 2. Flexor Pollicis brevis and 3. Opponens Pollicis.
Hypothenar muscles:
1. Abductor digiti minimi, 2. Flexor digiti minimi and 3.Opponens digiti minimi.
Small muscles of the hand:
1. Lumbricals, 2. Interossei (palmar and dorsal), and 3. Adductor Pollicis.

21. Short Muscles of the Thumb (Thenar Eminence)

22. Muscles forming Thenar Eminence

23. Short Muscles of the Little Finger (Hypothenar Eminence)

24. Muscles forming Hypothenar Eminence

26. Short Muscles of the Hand

27. Palmaris Brevis

28. Lumbricals

29. Short Muscles of the Hand

30. Palmar Interossei

31. Dorsal Interossei

32. Movements of
fingers

33. Synovial Sheath and Fibrous digital sheath

37. Ulnar Nerve
Radial Nerve

38. Median Nerve

39. Cutaneous Innervation of the Hand

40. Areas of Ulnar & Radial Arteries Supply

41. Deep Palmar Arch Direct continuation of Radial artery.
Deeply placed in palm in front of the metacarpal bones & Interosseous muscles.
The Arch on medial side is completed by deep branch of the ulnar artery.

42. Deep Palmar Arch

43. Superficial Palmar Arch
Direct continuation of Ulnar artery.
Superficially placed in palm in front of the long flexor tendons.
The Arch on lateral side is completed by superficial palmar branch of the radial artery.

44. Superficial Palmar Arch

46. Superficial Veins of the Upper Limb
Dorsal venous arch
Veins of the Palm
Cephalic vein
Basilic vein

47. Dorsal venous arch
Lies in the subcutaneous tissue proximal to Metacarpophalangeal joints
Drains on the lateral side into the Cephalic vein
Drains on the medial side into the Basilic vein
Communicates with the deep veins of the palm freely

48. Dorsal Venous Arch

49. Median Cubital Vein

50. Thank You