1what are the components of the hand
complex structure includes thumb, palm, and digits
2Hand Overview
bones:
number of primary joints:
bones: 27
number of primary joints: 19
3what are the primary structures in the hand
complex system of soft tissue, nerves, intrinsic and extrinsic muscles
4what are the key functions of the hand
- primary function for human body
- primary function of other joints in UE is stability for hand function
5what is the purpose of the hand
- fine motor: precise controlled motions
- manipulation
- interaction with environment
- sensory input
6how are the digits measured
1-5 start with thumb
7how are the metacarpals measured
1-5 start with thumb
8naming of the phalanges
proximal, middle and distal
9what digits have CMC joints
1-5
10what digits have MCP joints
1-5
11what digits have IP joints
thumb
12what digits have PIP joints
digits 2-5
13what digits have DIP joints
digits 2-5
14does the middle finger abduct or adduct
does not adduct, just abducts
15what are the MCP motions
flexion/extension
abduction/adduction
16what are the PIP motions
flexion/extension
17what are the DIP motions
flexion/extension
18what are the motions of the 5th digit special motion
opposition
19what are the creases of the hand
distalpalmar crease
thenar crease
wrist crease
20what is the clinical significance of the creases in the hand and wrist
edema measurements
orthotic fabrication
21what are the arches of the hand
longitudinal arch
distal transverse arch
proximal transverse arch
22what is the purpose of the arches in the hand
allow for strength and increased surface area
23what is the relationship of arches in the hand with hand function
holding a ball, holding curved objects