muscles origins/insertions for test 1

Question 1

Outcropper muscles

Answer 1

Origin: Posterior forearm
Inserton: to thumb or index finger

Question 2

SCM

Answer 2

Origin: Mastoid process of temporal bone
Insertion: Sternum and clavicle

Question 3

scalenes

Answer 3

Origin: cervical transverse processes
Insertion: 1st & 2nd ribs

Question 4

Levator scapulae

Answer 4

Origin: upper cervical transverse processes
Inserton: superior angle of scapula

Question 5

Trapezius

Answer 5

Origin: occiput, spinous process C2-T12
Inserton: Spine of scapula, acromion, outer 1/3rd of clavicle

Question 6

Rhomboids

Answer 6

Origin: spinous process of upper thoracic
Inserton: medial border of scapula (runs inferiolateral to scapula)

Question 7

Serratus Anterior

Answer 7

Origin: lateral ribs
Inserton: medial-anterior border of scapula

Question 8

Pectoralis Major

Answer 8

Origin: medial clavicle, sternum, and anterior ribs
Inserton: Intertubercular groove of humerus (Lateral lip = greater tubercle)

Question 9

Pectoralis Minor

Answer 9

Origin: Anterior upper ribs
Inserton: coracoid process

Question 10

Latissimus Dorsi

Answer 10

Origin: spinous process T7-T12 and thoracolumbar fascia, iliac crest
Inserton: Intertubercular groove of humerus (medial lip = lesser tubercle)

Question 11

deltoid

Answer 11

Origin: Lateral clavicle, acromion, spine of scapula
Inserton: deltoid tuberosity of humerus

Question 12

Supraspinatus

Answer 12

Origin: supraspinous fossa
Inserton: Greater tubercle of humerus

Question 13

infraspinatus

Answer 13

Origin: infraspinous fossa
Inserton: Greater tubercle of humerus

Question 14

teres minor

Answer 14

Origin: lateral posterior scapula
Inserton: Greater tubercle of humerus

Question 15

subscapularis

Answer 15

Origin: subscapular fossa
Inserton: Lesser tubercle of humerus

Question 16

teres major

Answer 16

Origin: inferior angle of scapula
Inserton: Intertubercular groove of humerus (Medial lip = lesser tubercle)

Question 17

coracobrachialis

Answer 17

Origin: coracoid process
Inserton: medial mid-humerus

Question 18

biceps brachii

Answer 18

Origin: LH - supraglenoid tubercle
SH - coracoid process
Inserton: radial tuberosity

Question 19

Brachialis

Answer 19

Origin: anterior humerus
Inserton: ulnar tuberosity and coranoid process

Question 20

Brachioradialis

Answer 20

Origin: lateral distal humerus
Inserton: radial styloid

Question 21

Triceps brachii

Answer 21

Origin: LH - infraglenoid tubercle
other heads - posterior humerus
Inserton: Olecranon process

Question 22

Anconeus

Answer 22

Origin: posterior distal humerus
Inserton: olecranon process

Question 23

supinator

Answer 23

Origin: upper ulna
Inserton: upper radius

Question 24

pronator teres

Answer 24

Origin: medial epicondyle
Inserton: anterior mid-radius

Question 25

Pronator quadratus

Answer 25

Origin: anterior distal ulna Inserton: anterior distal radius

Question 26

Flexor carpii radialis

Answer 26

Origin: medial epicondyle Inserton: 2nd metacarpal - anteriorly

Question 27

Flexor carpii ulnaris

Answer 27

Origin: medial epicondyle Inserton: 5th metacarpal - anteriorly

Question 28

palmaris longus

Answer 28

Origin: medial epicondyle Inserton: palmar fascia

Question 29

Flexor digitorum superficialis

Answer 29

Origin: medial epicondyle Inserton: middle phalanx of 2-5 fingers

Question 30

Flexor digitorum profundus

Answer 30

Origin: anterior ulna Inserton: distal phalanx of 2-5 fingers

Question 31

Extensor carpii radialis brevis

Answer 31

Origin: Lateral epicondyle Inserton: 3rd metacarpal - posteriorly

Question 32

Extensor carpii ulnaris

Answer 32

Origin: Lateral epicondyle Inserton: 5th metacarpal - posteriorly

Question 33

Extensor digitorum

Answer 33

Origin: Lateral epicondyle Inserton: distal phalanx of 2-5 fingers (via extensor hood)