HUBS1108 Lecture Notes - Lecture 2: Sesamoid Bone, Palmar Interossei Muscles, Radial Artery
30 May 2018
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Department
Course
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HUBS1108 - WRIST AND HAND
LEARNING OBJECTIVES - WRIST AND HAND
• Identify the major bony landmarks of the carpals, metacarpals and phalanges.
• List and classify the joints present in the wrist and hand.
• Identify the hand muscles and separate them into intrinsic and
• extrinsic.
• Describe how the thenar, hypothenar, lumbricals and interossei muscles are organised in the
hand.
• Identify the muscles in the forearm involved in movements of the wrist and hand.
• Describe the movements of the hand and wrist, with reference to the joints and muscles
involved in generating these movements.
• Describe the formation of the carpal tunnel and list its contents.
BONES OF THE WRIST AND HAND
• Wrist
o 8 carpal bones
• Hand (metacarpus)
o 5 metacarpals
• One for each digit including the thumb
o Fingers (digits)
• 14 phalanges
▪ 2 in thumb
▪ 3 in other digits
BONES OF THE WRIST
• Proximal row (SLTP)
o Scaphoid
o Lunate
o Triquetrum
o Pisiform
• Distal Row (TTCH)
o Trapezium
o Trapezoid
o Capitate
o Hammate
(some lovers try positions that they cannot handle)
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Document Summary
Identify the major bony landmarks of the carpals, metacarpals and phalanges. List and classify the joints present in the wrist and hand. Identify the hand muscles and separate them into intrinsic and: extrinsic, describe how the thenar, hypothenar, lumbricals and interossei muscles are organised in the hand. Bones of the wrist and hand: wrist, 8 carpal bones, hand (metacarpus, 5 metacarpals, one for each digit including the thumb, fingers (digits, 14 phalanges, 2 in thumb, 3 in other digits. Bones of the wrist: proximal row (sltp, scaphoid, lunate, triquetrum, pisiform, distal row (ttch, trapezium, trapezoid, capitate, hammate (some lovers try positions that they cannot handle) Sesamoid bones often present - at the distal end of the 1st and 2nd metacarpal bones. Individual joints sharing common joint capsule: carpometacarpal joints: synovial, saddle joints at thumb (pollicus, sliding joints with minimal movement at digits 2-5, metacarpophalangeal joints: synovial, biaxial.
