slideshow: carpus and hand bones
TRANSCRIPT
Carpus and Hand Bones
Palmar aspect Right Hand
The human hand is made up of 27 bones
Radial sideUlnar side
Orientation of the Hand
The wrist is made up of eight small bones called the Carpal Bones
The Carpal Bones
Distal to the Carpal Bones are the 5 Metacarpals Thumb is Metacarpal 1 Little finger is Metacarpal 5
15 4 3 2
The Metacarpals
Thumb
Index
Middle
Ring
Little
The Phalanges lie Distal to the Metacarpals
The Phalanges
Digits 2-5 have three Phalanges each
Proximal Phalanx
The Phalanges
The Phalanges
Intermediate Phalanx
Proximal Phalanx
The Phalanges
Terminal Phalanx
Intermediate Phalanx
Proximal Phalanx
The Phalanges
The thumb has only two phalanges
The Phalanges
Proximal Phalanx
The Phalanges
Distal Phalanx
Proximal Phalanx
The Carpal Bones
The Carpus is made up of eight small bones
There are two rows
Proximal row
Distal rowdistal rowproximal row
proximal row
distal row
thumblittle fingerRadial sideUlnar side
Ulna Radius
Right hand, palm up
little fingerRadial sideUlnar side
Ulna Radius
Trapezium
thumb
The distal row
Right hand, palm up
Radial sideUlnar side
Ulna Radius
Trapezoid
The distal row
Right hand, palm up
little finger thumb
Radial sideUlnar side
Ulna Radius
Capitate
The distal row
Right hand, palm up
little finger thumb
Radial sideUlnar side
Ulna Radius
Hamate
The distal row
Right hand, palm up
Hook of the Hamate
little finger thumb
Radial sideUlnar side
Ulna Radius
Scaphoid
The proximal row
Right hand, palm up
little finger thumb
Radial sideUlnar side
Ulna Radius
Lunate
The proximal row
Right hand, palm up
little finger thumb
Radial sideUlnar side
Ulna Radius
Triquetral
The proximal row
Right hand, palm up
little finger thumb
Radial sideUlnar side
Ulna Radius
Pisiform
The proximal row
Right hand, palm up
little finger thumb
RadiusUlna
Hamate
PisiformTriquetralLunate
Trapezium
Medial aspect Right Hand
Radius Ulna
Hamate
Scaphoid Triquetral
Lunate
Ulnar sideRadial side
little finger
thumb
Pisiform
Capitate Trapezoid
Trapezium
Dorsal Aspect Right Hand
RadiusUlna
Hamate
ScaphoidTriquetral
Lunate
Pisiform Trapezium
Right Hand Lateral or Radial view
Trapezoid
Lateral aspect right hand
(little finger)Radial sideUlnar side
(thumb)
1
6 7
8
2 3
4 5
1. Some2. Lovers3. Try4. Positions5. That6. They7. Can’t8 Handle
Useful Pnemonic
Right Hand Volar aspect
(little finger)Radial sideUlnar side
(thumb)
Right Hand Volar aspect
1
6 7
8
2 3
4 5
1. Some Scaphoid
2. Lovers Lunate3. Try Triquetral4. Positions Pisiform5. That Trapezium6. They Trapezoid7. Can’t Capitate8 Handle Hamate
Useful Pnemonic
little fingerRadial sideUlnar side
Ulna Radius
thumb
Right hand Volar Aspect
Between the proximal and distal row is the Mid-Carpal Joint
It is a single synovial cavity
The Carpal Tunnel
The articulated carpus has a ventral concavity
Right hand, palm up
Thumb
Pisiform
Hamate
Pisiform
Trapezium
ScaphoidHamate
Trapezium
View from fingers towards wrist
PisiformTrapezium
Flexor Retinaculum
The Flexor Retinaculum is a fibrous band of tissue that forms
the roof of the carpal tunnel
Thumb
The Flexor Retinaculum attaches to the
Pisiform
Hook of the Hamate
Tubercle of the Scaphoid
Tubercle of the Trapezium
Pisiform
HamateTrapezium
Scaphoid
Pisiform
Hook of the
Hamate
Trapezium Scaphoid
Between the bony Carpus and the
Flexor Retinaculum is a space called
The Carpal Tunnel
Carpal Tunnel