Anatomical Kinesiology - Chapter 7 (wrist and hand)
NAME THE METACARPAL BONES.
1, 2, 3, 4, 5 (RADIUS TO ULNA)
There are _____ individual phalanxes and _____ individual interphalangeal joints in one hand.
14; 9
WHAT ARE THE MOVEMENTS AT THE METACARPOPHALANGEAL (MCP) JOINTS?
FLEXION, EXTENSION, ABDUCTION, ADDUCTION
•METACARPOPHALANGEAL (MCP), PROXIMAL INTERPHALANGEAL (PIP), DISTAL INTERPHALANGEAL (DIP) •THUMB INCUDES CARPOMETACARPAL (CMC), METACARPOPHALANGEAL (MCP), INTERPHALANGEAL (IP)
LIST THE JOINTS OF A PHALANGE.
WHERE DO MANY OF THE WRIST FLEXORS ORIGINATE FROM?
MEDIAL HUMERUS AND ULNA - MEDIAL EPICONDYLE, MEDIAL CONDYLOIDRIDGE, CORONOID PROCESS
The metacarpophalangeal joints are classified as:
condyloid
The extensor digitorum and flexor digitorum profundus insert on the ________.
distal phalanxes of the four fingers
The _____ is located most laterally in relation to the wrist.
extensor pollicis brevis
The wrist _____ contract to enhance the gripping effectiveness of the finger flexors.
extensors
Interphalangeal joint motions are:
flexion and extension
The only wrist action of the _____ is flexion.
palmaris longus
The primary functional difference between the flexor digitorum profundus (FDP) and the flexor digitorum superficialis (FDS) is:
the FDP causes flexion of the distal interphalangeal joint and the FDS does not
Active index finger metacarpophalangeal and interphalangeal flexion range of motion is greatest when:
the wrist is in slight extension
An action common to the extensor carpi ulnaris and flexor carpi ulnaris is _____.
wrist adduction
THE WRIST IS WHICH TYPE OF JOINT?
•CONDYLOIDAL •MOVEMENT INCLUDES FLEXION, EXTENSION, ABDUCTION, ADDUCTION
WHAT IS THE NAME OF THE JOINT THAT FLEXES AND EXTENDS AT THE FINGERTIPS?
•DISTAL INTERPHALANGEAL JOINT (DIP)
WHICH MUSCLES PRIMARILY HAVE THEIR ORIGIN ON THE POSTERIOR/ LATERAL SIDE OF THE HUMERUS?
•EXTENSOR CARPI ULNARIS •EXTENSOR CARPI RADIALIS •EXTENSOR CARPI RADIALIS LONGUS
WHICH MUSCLES ARE PRIMARILY RESPONSIBLE FOR WRIST EXTENSION?
•EXTENSOR CARPI ULNARIS •EXTENSOR CARPI RADIALIS •EXTENSOR CARPI RADIALIS LONGUS •EXTENSOR DIGITORUM •EXTENSOR INDICIS •EXTENSOR DIGITI MINIMI •EXTENSOR POLLICIS LONGUS •EXTENSOR POLLICIS BREVIS •ABDUCTOR POLLICIS LONGUS
WHICH MUSCLES ARE RESPONSIBLE FOR EXTENSION AT THE MCP JOINTS?
•EXTENSOR DIGITORUM •EXTENSOR INDICIS (INDEX FINGER) •EXTENSOR DIGITI MINIMI (LITTLE FINGER) •EXTENSOR POLLICIS LONGUS (THUMB) •EXTENSOR POLLICIS BREVIS (THUMB)
WHICH MUSCLES ARE THE POINTING FINGER MUSCLE?
•EXTENSOR INDICIS (EXTENSION OF THE INDEX FINGER AT THE MCP JOINT)
WHICH MUSCLES ARE RESPONSIBLE FOR THUMB EXTENSION (CMC, MCP, IP JOINTS)?
•EXTENSOR POLLICIS LONGUS •EXTENSOR POLLICIS BREVIS (NOT AT THE IP JOINT)
WHICH MUSCLES PRIMARILY HAVE THEIR ORIGIN ON THE ANTERIOR/ MEDIAL SIDE OF THE HUMERUS?
•FLEXOR CARPI RADIALIS •PALMARIS LONGUS •FLEXOR CARPI ULNARIS
WHICH MUSCLES ARE RESPONSIBLE FOR WRIST FLEXION?
•FLEXOR CARPI RADIALIS •PALMARIS LONGUS •FLEXOR CARPI ULNARIS •FLEXOR DIGITORUM SUPERFICIALIS •FLEXOR DIGITORUM PROFUNDUS •FLEXOR POLLICIS LONGUS
WHICH MUSCLES ARE RESPONSIBLE FOR FLEXION AT THE DIP JOINTS?
•FLEXOR DIGITORUM PROFUNDUS
WHICH MUSCLES ARE RESPONSIBLE FOR FLEXION AT THE PIP JOINTS?
•FLEXOR DIGITORUM SUPERFICIALIS •FLEXOR DIGITORUM PROFUNDUS
WHICH MUSCLES ARE RESPONSIBLE FOR FLEXION AT THE MCP JOINTS?
•FLEXOR DIGITORUM SUPERFICIALIS •FLEXOR DIGITORUM PROFUNDUS •FLEXOR POLLICIS LONGUS (THUMB)
WHAT TYPE OF JOINT IS THE CARPOMETACARPAL JOINT?
•SADDLE JOINT, INCLUDES OPPOSITION AND REOPPOSITION MOVEMENT (CONSISTING OF ABDUCTION, ROTATION AND FLEXION)
NAME THE 8 CARPAL BONES.
•SCAPHOID, LUNATE, TRIQUETRUM, PISIFORM (PROXIMAL; RADIAL TO ULNAR SIDE) •TRAPEZIUM, TRAPEZOID, CAPITATE, HAMATE (DISTAL; RADIAL TO ULNAR SIDE)
WHICH MUSCLES ARE IMPORTANT ANTAGONIST MUSCLES THAT ALLOW FINGER FLEXION IN GRIPPING?
•WRIST EXTENSOR MUSCLES - EXTENSOR CARPI ULNARIS, EXTENSOR CARPI RADIALIS BREVIS, EXTENSOR CARPI RADIALIS LONGUS
