wrist and hand joints
DESCRIPTION
Wrist and Hand Joints. Anatomy and Physiology of Human Movement 420:050. Wrist and Hand Joints. Complex 29 bones ~ 29 joints > 30 muscles Simplification Carpals Extrinsic muscles only 7 joints. Objectives. 1. Be able to identify the bones of the wrist and hand joints. - PowerPoint PPT PresentationTRANSCRIPT
Wrist and Hand Joints
Anatomy and Physiology of Human Movement420:050
Wrist and Hand Joints Complex
29 bones ~ 29 joints > 30 muscles
Simplification Carpals Extrinsic muscles only 7 joints
Objectives 1. Be able to identify the bones of the wrist
and hand joints. 2. Be able to identify the wrist and hand joints 3. Be able to identify the landmarks of the
lower ulna and lower radius. 4. Be able to identify and describe the
movements of the wrist and hand joints. 5. Be able to identify and describe the general
attachments (distal/proximal), and movements of the wrist and hand joint muscles.
Wrist and Hand Joint Bones Radius Ulna Carpals Metacarpals Proximal phalanges Middle phalanges Distal phalanges
Middle?
Objectives 1. Be able to identify the bones of the wrist
and hand joints. 2. Be able to identify the wrist and hand joints 3. Be able to identify the landmarks of the
lower ulna and lower radius. 4. Be able to identify and describe the
movements of the wrist and hand joints. 5. Be able to identify and describe the general
attachments (distal/proximal), and movements of the wrist and hand joint muscles.
Wrist and Hand Joints Radiocarpal joint
Biaxial ball and socket Intercarpal joints
Gliding/nonaxial Carpometacarpal joints
Fingers – Gliding/nonaxial Thumb – Biaxial saddle
Metacarpophalangeal joints Fingers – Biaxial ball and socket Thumb – Uniaxial hinge
Proximal interphalangeal joints Fingers – Uniaxial hinge
Distal interphalangeal joints Fingers – Uniaxial hinge
Interphalangeal joint Thumb – Uniaxial hinge
Radiocarpal joint
Objectives 1. Be able to identify the bones of the wrist
and hand joints. 2. Be able to identify the wrist and hand joints 3. Be able to identify the landmarks of the
lower ulna and lower radius. 4. Be able to identify and describe the
movements of the wrist and hand joints. 5. Be able to identify and describe the general
attachments (distal/proximal), and movements of the wrist and hand joint muscles.
Bony Landmarks Styloid process of ulna Styloid process of radius
Objectives 1. Be able to identify the bones of the wrist
and hand joints. 2. Be able to identify the wrist and hand joints 3. Be able to identify the landmarks of the
lower ulna and lower radius. 4. Be able to identify and describe the
movements of the wrist and hand joints. 5. Be able to identify and describe the general
attachments (distal/proximal), and movements of the wrist and hand joint muscles.
Wrist and Hand Joint Movements Wrist flexion/extension Wrist abduction/adduction
Radial/ulnar deviation Wrist circumduction Finger flexion/extension Finger abduction/adduction Finger circumduction
Wrist and Hand Joint Movements Radiocarpal joint: Biaxial ball and
socketMovement: F/E, Abd/Add, Circ.
Intercarpal joints: NonaxialMovement: Linear gliding
Carpometacarpal joints (F): NonaxialMovement: Linear gliding
Carpometacarpal joint (T): Biaxial saddleMovement: F/E, Abd/Add, Circ.
Wrist and Hand Joint Movements Metacarpophalangeal joints (F): Biaxial
ball and socketMovement: F/E, Abd/Add, Circ.
Metacarpophalangeal joint (T): Uniaxial hingeMovement: F/E
Proximal interphalangeal joints: Uniaxial hingeMovement: F/E
Wrist and Hand Joint Movements Distal interphalangeal joints:
Uniaxial hingeMovement: F/E
Interphalangeal joint: Uniaxial hingeMovement: F/E