Study Structure and Function of The Hand (Kinesiology) Flash Cards

 
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Structure and Function of The Hand (Kinesiology)

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What is the capsular patter of the CMC joint?
ABD IS GREATER THAN EXTENSION
To fully extend the hand, what muscles are being utilized?
-EXTENSOR DIGITORUS COMMUNIS
-FLEXOR CARPI ULNARIS
True/False

When MP and IP joints are flexed passively to 90 degrees, the flexor digitorus profundes can flex the DIP?
CANNON FLEX THE DIP
Flexor digitorus profundus inserts where?
MIDDLE PHANANX
True extensor of the MP joints and acts on the IP joints only when the flexors are relaxed?
EXTENSOR DIGITORUS COMMUNIS
Profundus means that the musle always attaches to where?
THE DIP
True/False

Flexion of the DIP increases from 2nd-5th finger?
TRUE
PIP flexion increases from the?
2nd-5th finger
Hinge joints have how many degrees of motion?
1 DEGREE
The IP joints are what kind of joints?
HINGE JOINTS
The volar plate reinforces the jt capsule_________, and prevents__________ of the ____________ tendons during MCP flexion?
-ANTERIORLY
-IMPINGEMENT
-FLEXOR
Where is the Volar Plate located?
PALMER SURFACE OF THE MCP JOINT
Capsular patter for MCP joints 2-5?
FLEXION LOSS IS GREATER THAT EXTENSION LOSS
Loose packed position for MCP joints 2-5?
SLIGHT FLEXION
Closed packed position for the MCP joints?
FULL EXTENSION
How much extension does the MCP joint have?
45 DEGREES
How much flexion does the MCP joint have?
90 DEGREES
How many degrees of freedom does a condyloid joint have?
2
Type of joint for MCP 2-5?
CONDYLOID
Nerve innervation for the adductor pollicis?
ULNAR
All eight interosseus muscles are innervated by the?
ULNAR NERVE
How many intrinsic muscles does the hand have?
20
In order to effectively grip an object, what muscles must be affectively working?
-FLEXOR DIGITORUM SUPERFICIALIS
-FLEXOR DIGITORUM PROFUNDUS
-FLEXOR POLLICIS LONGUS
This muscle has two heads?
ADDUCTOR POLLICIS
Muscles of the thenar eminence?
-OPPONENS POLLICIS
-ABDUCTOR POLLICIS BREVIS
-FLEXOR POLLICIS BREVIS
Muscles of the hypothenar eminence?
-OPPONENS DIGITI MINIMI
-ABDUCTOR DIGITI MINIMI
-FLEXOR DIGITI MINIMI
Extrensic flexors of the digits?
-FLEXOR DIGITORUM SUPERFICIALIS
-FLEXOR DIGITORUM PROFUNDUS
-FLEXOR POLLICIS LONGUS
This joint may allow considerable hyperextension?
IP JOINT OF THE THUMB
This is the most common joint for arthritis of the hand?
CMC JOINT
What are the most stable CMC joints?
2ND AND 3RD
What plate limits hyperextension of the IP joints?
PALMAR PLATE (VOLAR)
The capsule at each IP joint is strengthened by radial and ulnar collateral ligaments and a?
PALMAR PLATE
Connective tissue that surrounds and stabilizes the MCP joint?
CAPSULE
CMC flexion and extension occur in what plane?
FRONTAL
CMC abduction and adduction occur in what plane?
SAGGITAL
What is the most mobile joint in the hand?
CMC (SADDLE JT) THUMB
The basis for all movements within the hand starts at the?
CMC JOINTS
How many phalanxs' does the thumb have?
2 (ONE PROXIMAL/ONE DISTAL)
How many phalanges does the hand have?
14
The proximal end of the metacarpals and the distal row of the carpal bones form what?
CARPOMETACARPAL JOINTS
How many bones and joints make up the hand?
19 BONES
19 JOINTS
What muscles make up the anatomical snuff box?
-EXTENSOR POLLICIS LONGUS
-EXTENSOR POLLICIS BREVIS
-ABDUCTOR POLLICIS LONGUS
What are the extensic muscles of the thumb?
-EXTENSOR POLLICIS LONGUS
-EXTENSOR POLLICIS BREVIS
-ABDUCTOR POLLICIS LONGUS
What are the extrinsic extensors of the fingers?
-EXTENSOR DIGITORUM
-EXTENSOR INDICIS
-EXTENSOR DIGITI MINIMI
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