Extensor Retinaculum, Anatomical snuff box and muscles of hand

This presentation describes Extensor Retinaculum, Anatomical snuff box and muscles of hand

Transcript

1. Extensor Retinaculum
2. Attachments of Extensor Retinaculum Lateral: -Lower part of anterior border of radius. Medial: -Triquetral and pisiform bones.
3. Extensor retinaculum Lateral attachment: -Lower part of anterior border of radius. Medial attachment -Triquetral and pisiform bone
4. Superficial Relations Laterally: -Superficial radial nerve. -Beginning of cephalic vein. Medially: -Dorsal cutaneous branch of ulnar nerve. -Beginning of basilic vein.
5. Superficial radial nerve Dorsal cutaneous branch of ulnar nerve
6. Cephalic vein Basilic vein
7. Deep Relations (Compartments) 1st compartment: -Tendon of abductor pollicis longus. -Tendon of extensor pollicis brevis. 2nd compartment: -Tendons of extensor carpi radialis longus and brevis. 3rd compartment: -Tendon of extensor pollicis longus. 4th compartment: -Tendons of extensor digitorum & extensor indicis. -Posterior interosseous nerve. -Anterior interosseous artery. 5th compartment: -Tendon of extensor digiti minimi. (Behind inferior radioulnar joint) 6th compartment: Behind lower end of radius
8. Abductor pollicis longus Extensor pollicis brevis 1 Extensor carpi radialis longus Extensor carpi radialis brevis 2 Extensor pollicis longus 3 -Extensor digitorum and ext. indicis -Posterior interosseous nerve. -Anterior interosseous artery 4 Extensor digiti minimi 5 Extensor carpi ulnaris 6
9. 1-Abductor pollicis longus & extensor pollicis brevis 2-Tendons of extensor carpi radialis longus & brevi 3-Tendon of ext. pollicis longus 4-Tendons of extensor digitorum 4-Tendon of extensor indicis 5-Tendon of extensor digiti minimi 6-Tendon of extensor carpi ulnaris Dorsal tubercle of Lister Lateral Medial
10. Anatomical Snuff Box
11. Anatomical snuff box
12. Boundaries
13. Tendon of abductor pollicis longus Tendon of extensor pollicis brevis Tendon of extensor pollicis longus Lateral
14. Roof
15. Superficial radial nerve Beginning of cephalic vein
16. Floor
17. Trapezium Scaphoid Styloid process of radius
18. Scaphoid Trapezium Styloid process of radius
19. Contents
20. Tendon of extensor carpi radialis brevis Tendon of extensor carpi radialis longus Radial artery Lateral
21. Muscles of The Hand
22. Lateral Muscles of Palm 1- Thenar eminence muscles. a- Abductor pollicis brevis. b- Flexor pollicis brevis. c- Opponens pollicis. 2- Adductor Pollicis muscle.
23. Abductor pollicis brevis Flexor pollicis brevis Adductor pollicis m.
24. Abductor pollicis longus (cut) Adductor pollicis Opponens pollicis Flexor pollicis brevis (cut) Abductor digiti minimi Flexor digiti minimi Opponens digiti minimi
25. Adductor pollicis m. Adductor pollicis m. Radial artery Deep palmar arch
26. Medial Muscles of the Palm (Hypothenar Muscles) 1- Abductor digiti minimi. 2- Flexor digiti minimi. 3- Opponens digiti minimi.
27. Abductor digiti minimi m. Flexor digiti minimi m. Flexor retinaculum
28. Abductor digiti minimi Opponens digiti mini
29. Intermediate Muscles Of the Palm 1- Lumbricals. 2- Palmar interossii. 3- Dorsal interossii.
30. Lumbricals Tendons of flexor digitorum profundus
31. Palmar interossei ms
32. Dorsal interossei ms
33. Fibrous Flexor Sheaths
34. Fibrous flexor sheathes
35. Palmar Aponeurosis
36. Palmar aponeurosis
37. Tendon of palmaris longus Palmar aponeurosis Thenar muscles Hypothenar muscles Fibrous flexor sheaths 4 slips
38. Extensions of Palmar Aponeurosis
39. Lat. Med. Palmar aponeurosis Fascia covering hypothenar muscles Deep fascia covering thenar muscles
40. Lat. Med. Palmar aponeurosis Medial palmar septum Lateral palmar septum Intermediate palmar septum 1st metacarpal bone 3rd metacarpal bone 5th metacarpal bone
41. Palmar Spaces (Boundaries & Contents)
42. Palmar Compartments 1- lateral compartment (Thenar). 2- Medial compartment (Hypothenar). 3- Intermediate compartment: A- Mid-palmar space. B- Thenar space.
43. Lateral compartment Medial Compartment Adductor pollicis m. A line that divides middle compartment into mid-palmar (Medial) & thenar and adductor (Lateral)
44. Palmar (Hand) Spaces & their Contents
45. Lat. Med. Palmar aponeurosis Medial intermuscular septum Lateral intermuscular septum Intermediate intermuscular septum Adductor space containing adductor pollicis muscle Thenar space Mid-palmar space
46. Contents of Palmar Spaces
47. Lat. Med. Superficial palmar arch & Branches of median and ulnar nerves Flexor digitorum tendons to medial 3 fingers & synovial sheath Adductor pollicis muscle Flexor digit tendons to index with blood & nerve supply to thumb and lateral side of index Deep palmar arch