HUBS1105 Lecture Notes - Lecture 11: Extensor Pollicis Brevis Muscle, Flexor Pollicis Longus Muscle, Extensor Carpi Ulnaris Muscle
4 May 2018
School
Department
Course
Professor
HUBS1105(
12(
11.(The(Forearm(
(
Radio&Ulnar+Joints+
− Superior/Proximal(–(synovial(pivot(at(annular(ligament(
− Intermediate/middle(–(fibrous(at(interosseous(membrane(
− Inferior/distal(–(synovial(pivot(at(articular(disc(
Carpal+Bones+
− Proximal(row(–(scaphoid,(lunate,(triquetrum,(pisiform(
− Distal(row(–(trapezium,(trapezoid,(capitate,(hamate(
Movement+at+Wrist+
− Adduction(and(abduction(
− Flexion(and(extension(
Muscles+of+the+Forearm+
− Flexors(are(anterior(–(pronation(
− Extensors(are(posterior(–(supination(
Anterior+Aspect+of+Forearm+
Superficial(Group(
Muscle(
Origin(
Insertion(
Action((
Pronator(teres(
Medial(epicondyle(
Middle(of(radius(
Pronation(
Flexi(carpi(radialis(
Metacarpals(2,(3(
Wrist(flexion(and(radial(
deviation(
Palmaris(longus(
Palmar(aponeurosis(
(
Flexi(carpi(ulnaris(
Pisiform,(hamate,(5th(
metacarpal(
Wrist(flexion(and(ulnar(
deviation(
Intermediate(Group(
Flexor(digitorum(
superficials(
Medial(epicondyle,(radius(
and(ulna(
Shaft(of(middle(phalanges(
Wrist(and(finger(flexion(
Deep(Group(
Flexor(digitorum(
profundus(
Ulna(and(interosseous(
membrane(
Base(of(distal(phalange(
(
Flexor(pollicis(longus(
Radius(and(interosseous(
membrane(
Base(of(distal(phalanx(of(
thumb(
(
Pronator(quadratus(
Distal(ulna(
Pronator(ridge(of(radius(
(
Posterior+Aspect+of+Forearm+
Superficial(Group(
Muscle(
Origin(
Insertion(
Action(
Brachioradialis(
Supercondylar(ridge(
(
Radial(styloid(process(
(
Extensor(carpi(radialis(
longus(and(brevis(
2nd(and(3rd(metacarpals(
(
Extensor(carpi(ulnaris(
Lateral(epicondyle(
(
5th(metacarpal(
(
Extensor(digiti(minimi(
Ext.(expansion(5th(digit(
(
Extensor(digitorum(
Ext.(expansion(of(
phalanges(
(
Deep(Group(
Abductor(pollicis(longus(
Radius,(ulna,(interosseous(
membrane(
1st(metacarpal(
(
Extensor(pollicis(brevis(
Proximal(phalanx(of(
thumb(
(
Extensor(pollicis(
Ulna,(IM(
(
Distal(phalax(of(thumb(
(
Extensor(indicis(
Extensor(digitorum(
tendon(of(index(finger(
(
Supinator(
Ulna,(humerus(lateral(
epicondyle(
Proximal(radius(
(
(
( (
