Reading...
Play button
Play button
Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
202 Cards in this Set
- Front
- Back
|
What is the origin of Trapezius?
|
Occipital Protuberance, Ligamentum Nuchae, C7-T12 spinous processes
|
|
|
What is the insertion of Trapezius?
|
Clavicle & Scapula
|
|
|
What is the action of Trapezius?
|
elevation, depression, upward rotation & retraction of scapula
|
|
|
What shape is Trapezius?
|
triangular
|
|
|
How many divisions does Trapezius have?
|
Three
|
|
|
What is the widest muscle of the shoulder?
|
Trapezius
|
|
|
What is the origin of Latissimus Dorsi?
|
thoracolumbar aponeurosis, lower 6 thoracic spinous processes, lower 3 to 4 ribs, inferior angle of the scapula
|
|
|
What is the insertion of Latissimus Dorsi?
|
bicipital groove
|
|
|
What is the action of Latissimus Dorsi?
|
extension, medial rotation & adduction of the humerus. (draws arm posterior & inferior)
|
|
|
What is the widest muscle of the back?
|
Latissimus Dorsi
|
|
|
What muscle is deep only to Trapezius?
|
Latissimus Dorsi
|
|
|
What muscle is used in actions such as swimming & chopping with an axe?
|
Latissimus Dorsi
|
|
|
What muscle is active when using crutches?
|
Latissimus Dorsi
|
|
|
What is the origin of Teres Major?
|
inferior angle of the scapula
|
|
|
What is the insertion of Teres Major?
|
bicipital groove
|
|
|
What is the action of Teres Major?
|
extension, medial rotation & adduction of the humerus
|
|
|
What is the origin of Levator Scapulae?
|
C1 to C5 transverse processes
|
|
|
What is the insertion of Levator Scapulae?
|
scapula
|
|
|
What is the action of Levator Scapulae?
|
elevation & downward rotation of the scapula
|
|
|
What muscle is a synergist to Levator Scapulae in elevation?
|
Trapezius
|
|
|
What muscle is frequently injured in whiplash?
|
Levator Scapulae
|
|
|
What is the origin of Rhomboid Minor?
|
C7-T1 spinous processes
|
|
|
What is the origin of Rhomboid Major?
|
T2-T5 spinous processes
|
|
|
What is the insertion of Rhomboid Minor & Major?
|
Scapula
|
|
|
What is the action of Rhomboid Minor & Major?
|
retraction & downward rotation of the scapula
|
|
|
What is the shape of Rhomboid Minor & Major when paired?
|
Christmas tree
|
|
|
Are the Rhomboids deep or superficial?
|
Deep
|
|
|
Which Rhomboid muscle is bigger?
|
Rhomboid Major
|
|
|
How are the Rhomboids arranged?
|
Rhomboid Minor sits above Rhomboid Major
|
|
|
What is the origin of the Deltoids?
|
Clavicle & scapula
|
|
|
What is the insertion of the Deltoids?
|
Deltoid tuberosity of the humerus
|
|
|
What is the action of the anterior Deltoid?
|
flexion, horizontal adduction & medial rotation of the humerus
|
|
|
What is the action of the middle Deltoid?
|
abduction of the humerus to 90 degrees
|
|
|
What is the action of the posterior Deltoid?
|
extension, horizontal abduction & lateral rotation of the humerus
|
|
|
Which muscle has the most movements of the humerus?
|
Deltoids
|
|
|
What muscle forms the rounded muscle bulk over the shoulder joint?
|
Deltoids
|
|
|
What shape are the Deltoids?
|
Triangular
|
|
|
What is the origin of Coracobrachialis?
|
Coracoid process of the scapula
|
|
|
What is the insertion of Coracobrachialis?
|
Middle 1/3 of the medial humerus
|
|
|
What is the action of Coracobrachialis?
|
flexion & adduction of the humerus
|
|
|
What is the Coracobrachialis named for?
|
It's origin & insertion
|
|
|
What is the origin of Supraspinatus?
|
Supraspinous fossa of the scapula
|
|
|
What is the insertion of Supraspinatus?
|
greater tubercle, superior facet
|
|
|
What is the action of Supraspinatus?
|
abduction & stabilization of the humerus
|
|
|
What is the most frequently injured rotator cuff muscle?
|
Supraspinatus
|
|
|
Which muscle is called the suitcase muscle?
|
Supraspinatus
|
|
|
What is the origin of Infraspinatus?
|
Infraspinatus fossa of the scapula
|
|
|
What is the insertion of Infraspinatus?
|
greater tubercle, middle facet
|
|
|
What is the action of Infraspinatus?
|
lateral rotation & extension of the humerus
|
|
|
What is the origin of Teres Minor?
|
scapula
|
|
|
What is the insertion of Teres Minor?
|
greater tubercle, inferior facet
|
|
|
What is the action of Teres Minor?
|
lateral rotation & extension of the humerus
|
|
|
What is the origin of Subscapularis?
|
subscapular fossa of the scapula
|
|
|
What is the insertion of Subscapularis?
|
lesser tubercle
|
|
|
What is the action of Subscapularis?
|
medial rotation of the humerus
|
|
|
What muscle can cause Thoracic Outlet Syndrome?
|
Subscapularis
|
|
|
What is the origin of Pectoralis Major?
|
clavicle, sternum & upper 6 ribs
|
|
|
What is the insertion of Pectoralis Major?
|
bicipital groove
|
|
|
What is the action of Pectoralis Major?
|
adduction, horizontal adduction, medial rotation, flexion & extension of the humerus
|
|
|
What muscle forms the anterior wall of the axilla?
|
Pectoralis Major
|
|
|
What is the origin of Pectoralis Minor?
|
anterior 3rd, 4th & 5th ribs
|
|
|
What is the insertion of Pectoralis Minor?
|
coracoid process of the scapula
|
|
|
What is the action of Pectoralis Minor?
|
protraction, depression & downward rotation of the scapula
|
|
|
What is the origin of Subclavius?
|
1st rib
|
|
|
What is the insertion of Subclavius?
|
clavicle
|
|
|
What is the action of Subclavius?
|
prevents extreme elevation & protraction of the clavicle
|
|
|
What muscle can mimic a heart attack?
|
Subclavius
|
|
|
What is the origin of Serratus Anterior?
|
outer surface of the upper 8 ribs, by finger-like slips
|
|
|
What is the insertion of Serratus Anterior?
|
scapula
|
|
|
What is the action of Serratus Anterior?
|
protraction & upward rotation of the scapula. stabilizes the scapula against the chest wall.
|
|
|
What muscle is the strongest protractor of the scapula?
|
Serratus Anterior
|
|
|
Weakness or paralysis of what muscle causes "winged scapula"?
|
Serratus Anterior
|
|
|
What muscle is called the boxers muscle?
|
Serratus Anterior
|
|
|
What is the origin of Biceps Brachii?
|
scapula
|
|
|
Where on the scapula does the short head of Biceps Brachii originate?
|
coracoid process
|
|
|
Where on the scapula does the long head of Biceps Brachii originate?
|
supraglenoid tubercle
|
|
|
What is the insertion of Biceps Brachii?
|
tuberosity of the radius
|
|
|
What is the action of Biceps Brachii?
|
flexion of the elbow & supination of the forearm
|
|
|
What action does the short head of Biceps Brachii have?
|
flexion of the humerus
|
|
|
What other muscle has the same origin of the short head of Biceps Brachii?
|
Coracobrachialis
|
|
|
What muscle inserts at the same place as the short head of Biceps Brachii & Coracobrachialis originate?
|
Pectoralis Minor
|
|
|
What muscle is called the corkscrew muscle?
|
Biceps Brachii
|
|
|
What muscle is the strongest supinator?
|
Biceps Brachii
|
|
|
What is the origin of Brachialis?
|
humerus
|
|
|
What is the insertion of Brachialis?
|
coronoid process of the ulna
|
|
|
What is the action of Brachialis?
|
flexion of the elbow
|
|
|
What muscle is the strongest forearm flexor?
|
Brachialis
|
|
|
What is the origin of Triceps Brachii?
|
scapula & humerus
|
|
|
Where does the long head of Triceps Brachii originate?
|
infraglenoid tubercle of the scapula
|
|
|
Where does the lateral head of Triceps Brachii originate?
|
posterior humerus above the spiral groove
|
|
|
Where does the medial head of Triceps Brachii originate?
|
posterior humerus below the spiral groove
|
|
|
What is the insertion of Triceps Brachii?
|
olecranon of the ulna
|
|
|
What is the action of Triceps Brachii?
|
extension of the elbow
|
|
|
What action does the long head of Triceps Brachii have?
|
extension of the humerus
|
|
|
What is the only muscle of the posterior arm?
|
Triceps Brachii
|
|
|
What is the antagonist to Triceps Brachii?
|
Biceps Brachii
|
|
|
What is the origin of Anconeus?
|
lateral epicondyle of the humerus
|
|
|
What is the insertion of Anconeus?
|
olecranon process of the ulna
|
|
|
What is the action of Anconeus?
|
assists with extension of the forearm. doesn't have it's own action.
|
|
|
What muscle unlocks the elbow?
|
Anconeus
|
|
|
What is the origin of Brachioradialis?
|
lateral supracondylar ridge of the humerus
|
|
|
What is the insertion of Brachioradialis?
|
styloid process of the radius
|
|
|
What is the action of Brachioradialis?
|
flexion of the forearm
|
|
|
What is Brachioradialis named for?
|
It's origin & insertion
|
|
|
What muscle has a distal humerus to distal radius attachment?
|
Brachioradialis
|
|
|
What muscle is called the beer drinking muscle?
|
Brachioradialis
|
|
|
What muscles make up the Mobile Wad of 3?
|
Brachioradialis, Extensor Carpi Radialis Longus & Extensor Carpi Radialis Brevis
|
|
|
What is the origin of Extensor Carpi Radialis Longus?
|
lateral supracondylar ridge & lateral epicondyle of the humerus
|
|
|
What is the insertion of Extensor Carpi Radialis Longus?
|
base of 2nd metacarpal
|
|
|
What is the action of Extensor Carpi Radialis Longus?
|
extension on radial side, abduction of the wrist in radial deviation
|
|
|
What is the origin of Extensor Carpi Radialis Brevis?
|
lateral epicondyle of the humerus, common extensor tendon
|
|
|
What is the insertion of Extensor Carpi Radialis Brevis?
|
base of the 3rd metacarpal
|
|
|
What is the action of Extensor Carpi Radialis Brevis?
|
extension of the wrist on the radial side
|
|
|
What is the origin of Extensor Carpi Ulnaris?
|
lateral epicondyle of the humerus, common extensor tendon, posterior, proximal ulna
|
|
|
What is the insertion of Extensor Carpi Ulnaris?
|
base of the 5th metacarpal
|
|
|
What is the action of Extensor Carpi Ulnaris?
|
extension & adduction of the wrist on the ulnar side
|
|
|
What is the origin of Extensor Digitorum?
|
lateral epicondyle of the humerus, common extensor tendon
|
|
|
What is the insertion of Extensor Digitorum?
|
base of the middle 4 phalanges on the dorsal surface
|
|
|
What is the action of Extensor Digitorum?
|
extends digits
|
|
|
What is the origin of Extensor Digiti Minimi?
|
lateral epicondyle of the humerus, common extensor tendon
|
|
|
What is the insertion of Extensor Digiti Minimi?
|
extensor expansion of little finger
|
|
|
What is the action of Extensor Digiti Minimi?
|
extends little finger
|
|
|
What is the origin of Extensor Indicis?
|
posterior ulna & interosseous membrane
|
|
|
What is the insertion of Extensor Indicis?
|
extensor expansion of index finger
|
|
|
What is the action of Extensor Indicis?
|
extension of the index finger
|
|
|
What is the origin of Supinator?
|
lateral epicondyle of the humerus, proximal ulna at supinator crest
|
|
|
What is the insertion of Supinator?
|
between anterior & posterior oblique lines of the proximal radius on the anterior surface
|
|
|
What is the action of Supinator?
|
supination of the forearm
|
|
|
What is the strongest supinator?
|
Supinator
|
|
|
What is the origin of Abductor Pollicis Longus?
|
posterior radius, ulna & interosseous membrane
|
|
|
What is the insertion of Abductor Pollicis Longus?
|
bas of the 1st metacarpal
|
|
|
What is the action of Abductor Pollicis Longus?
|
abduction of the thumb
|
|
|
What is the origin of Extensor Pollicis Brevis?
|
posterior radius & interosseous membrane
|
|
|
What is the insertion of Extensor Pollicis Brevis?
|
base of the proximal phalanx of the thumb
|
|
|
What is the action of Extensor Pollicis Brevis?
|
extension of the thumb
|
|
|
What is the origin of Extensor Pollicis Longus?
|
posterior ulna & interosseous membrane
|
|
|
What is the insertion of Extensor Pollicis Longus?
|
base of the distal phalanx of the thumb
|
|
|
What is the action of Extensor Pollicis Longus?
|
extension of the thumb
|
|
|
What muscle forms the medial border of the anatomical snuffbox?
|
Extensor Pollicis Longus
|
|
|
What muscle forms the lateral border of the anatomical snuffbox?
|
Extensor Pollicis Brevis
|
|
|
What is the origin of Pronator Teres?
|
medial epicondyle, coronoid process & common flexor tendon
|
|
|
Where does the humeral head of Pronator Teres originate?
|
medial epicondyle
|
|
|
Where does the ulnar head of Pronator Teres originate?
|
coronoid process & common flexor tendon
|
|
|
What is the insertion of Pronator Teres?
|
radius
|
|
|
What is the action of Pronator Teres?
|
pronation of the forearm & assists in flexion of the elbow
|
|
|
What is the most powerful pronator?
|
Pronator Teres
|
|
|
What is the origin of Pronator Quadratus?
|
anterior ulna
|
|
|
What is the insertion of Pronator Quadratus?
|
anterior radius
|
|
|
What is the action of Pronator Quadratus?
|
pronates forearm
|
|
|
What is the origin of Flexor Carpi Ulnaris?
|
epicondyle of the humerus, posterior ulna & olecranon process of ulna
|
|
|
What is the insertion of Flexor Carpi Ulnaris?
|
pisiform, hamate & base of 5th metacarpal
|
|
|
What is the action of Flexor Carpi Ulnaris?
|
flexion & adduction of the wrist on the ulnar side
|
|
|
What muscle does the ulnar nerve pass through?
|
Flexor Carpi Ulnaris
|
|
|
What is the origin of Palmaris Longus?
|
epicondyle of the humerus
|
|
|
What is the insertion of Palmaris Longus?
|
palmar aponeurosis & flexor retinaculum
|
|
|
What is the action of Palmaris Longus?
|
assists in flexion of the wrist
|
|
|
What upper body muscle is commonly used in tendon repair?
|
Palmaris Longus
|
|
|
What muscle flexes the palmar aponeurosis?
|
Palmaris Longus
|
|
|
What upper body muscle is sometimes absent on one or both sides?
|
Palmaris Longus
|
|
|
What is the origin of Flexor Carpi Radialis?
|
medial epicondyle of the humerus
|
|
|
What is the insertion of Flexor Carpi Radialis?
|
bases of 2nd & 3rd metacarpals
|
|
|
What is the action of Flexor Carpi Radialis?
|
flexion & abduction of the wrist on the radial side
|
|
|
What is the origin of Flexor Digitorum Superficialis?
|
medial epicondyle of the humerus, coronoid process of the ulna, anterior oblique line of the radius
|
|
|
What is the insertion of Flexor Digitorum Superficialis?
|
sides of the shafts of the middle phalanges of 4 fingers
|
|
|
What is the action of Flexor Digitorum Superficialis?
|
flexes digits
|
|
|
The median nerve & ulnar artery pass beneath the origin of what muscle?
|
Flexor Digitorum Superficialis
|
|
|
What is the origin of Flexor Digitorum Profundus?
|
anterior ulna & interosseous membrane
|
|
|
What is the insertion of Flexor Digitorum Profundus?
|
bases of the distal phalanges of 4 fingers
|
|
|
What is the action of Flexor Digitorum Profundus?
|
flexes digits
|
|
|
What is the origin of Flexor Pollicis Longus?
|
anterior radius & interosseous membrane
|
|
|
What is the insertion of Flexor Pollicis Longus?
|
distal phalanx of the thumb
|
|
|
What is the action of Flexor Pollicis Longus?
|
flexion of the thumb
|
|
|
What is the origin of Abductor Pollicis Brevis?
|
flexor retinaculum, trapezium & scaphoid
|
|
|
What is the insertion of Abductor Pollicis Brevis?
|
base of the proximal phalanx of the thumb on the radial side
|
|
|
What is the action of Abductor Pollicis Brevis?
|
abduction of the thumb
|
|
|
What is the origin of Adductor Pollicis?
|
shaft of 3rd metacarpal, base of 2nd & 3rd metacarpals, capitate & adjacent carpals
|
|
|
What is the insertion of Adductor Pollicis?
|
base of 1st metacarpal of the thumb on the medial side
|
|
|
What is the action of Adductor Pollicis?
|
adducts the thumb
|
|
|
What is the origin of Flexor Pollicis Brevis?
|
flexor retinaculum, trapezium, trapezoid & capitate
|
|
|
What is the insertion of Flexor Pollicis Brevis?
|
base of proximal phalanx of thumb
|
|
|
What is the action of Flexor Pollicis Brevis?
|
flexion of thumb
|
|
|
What is the origin of Flexor Digiti Minimi?
|
flexor retinaculum, hamate
|
|
|
What is the insertion of Flexor Digiti Minimi?
|
base of proximal phalanx of little finger
|
|
|
What is the action of Flexor Digiti Minimi?
|
flexion of the little finger
|
|
|
What is the origin of Opponens Pollicis?
|
flexor retinaculum & trapezium
|
|
|
What is the insertion of Opponens Pollicis?
|
lateral shaft of 1st metacarpal
|
|
|
What is the action of Opponens Pollicis?
|
opposition of thumb
|
|
|
What is the origin of Opponens Digiti Minimi?
|
flexor retinaculum & hamate
|
|
|
What is the insertion of Opponens Digiti Minimi?
|
ulnar border of 5th metacarpal
|
|
|
What is the action of Opponens Digiti Minimi?
|
opposition of little finger
|
|
|
What is the origin of Abductor Digiti Minimi?
|
pisiform
|
|
|
What is the insertion of Abductor Digiti Minimi?
|
base of proximal phalanx of the little finger on the ulnar side
|
|
|
What is the action of Abductor Digiti Minimi?
|
abduction of the little finger
|
|
|
What is the origin of Dorsal Interossei?
|
dorsal surfaces of metacarpals
|
|
|
What is the insertion of Dorsal Interossei?
|
base of proximal phalanges to extensor expansion of 2nd, 3rd & 4th fingers
|
|
|
What is the action of Dorsal Interossei?
|
abduction of 2nd finger, abduction & adduction of 3rd & 4th fingers. assists lumbricals
|
|
|
What is the origin of Palmar Interossei?
|
shaft of 2nd, 4th & 5th metacarpals, palmar surface
|
|
|
What is the insertion of Palmar Interossei?
|
base of proximal phalanges to extensor expansion of 2nd, 4th, 5th fingers
|
|
|
What is the action of Palmar Interossei?
|
adduction of 2nd, 4th & 5th fingers. assists lumbricals
|
|
|
What is the origin of Lumbricals?
|
flexor digitorum & profundus tendons
|
|
|
What is the insertion of Lumbricals?
|
extensor expansion of 2nd, 3rd & 5th fingers at proximal phalanges on the radial side
|
|
|
What is the action of Lumbricals?
|
flexion & extension of fingers
|
