Brachium & Antibrachium Origin And Insertion

Question 1

O&I of deltoideus

Answer 1

O: spine & acromial process of scapula
I: deltoid tuberosity

Question 2

Innervation of deltoideus

Answer 2

Axillary nerve

Question 3

O&I of infraspinatus

Answer 3

O: infraspinous fossa
I: lateral side of the greater tubercle of humerus

Question 4

Innervation of infraspinatus

Answer 4

Suprascapular nerve

Question 5

O&I of teres minor

Answer 5

O: infraglenoid tumbler and distal 3rd of caudal boarder of the scapula
I: teres minor tuberosity of the humerus

Question 6

Innervation of teres minor

Answer 6

Axillary nerve

Question 7

O&I of supraspinatus muscle

Answer 7

O: supraspinous fossa
I: greater tubercle of humerus (thick tendon)

Question 8

Innervation of supraspinatus muscle

Answer 8

Suprascapular nerve

Question 9

O&I of subscapularis muscle

Answer 9

O: subscapular fossa
I: lesser tubercle of humerus

Question 10

Innervation of subscapularis muscle

Answer 10

Subscapular nerve

Question 11

O&I of teres major muscle

Answer 11

O: Caudal angle and adjacent caudal boarder of the scapula; caudal surface of subscapularis
I: teres major tuberosity of the humerus

Question 12

Innervation of the teres major muscle

Answer 12

Axillary nerve

Question 13

O&I of coracobrachialis muscle

Answer 13

O: coracoid process of scapula
I: crest of lesser tubercle of humerus proximal to the teres major tuberosity

Question 14

Innervation of the coracobrachialis muscle

Answer 14

Musculocutanous nerve

Question 15

O&I of tensor fasciae antebrachii

Answer 15

O: fascia covering lateral side of lat dorsi
I: olecrannon

Question 16

Innervation of tensor fascia brachii

Answer 16

Radial nerve

Question 17

O&I of Long head of triceps

Answer 17

O: caudal boarder of the scapula
I: olecranon tuber

Question 18

Innervation of the long, lateral, accessory & medial head of triceps

Answer 18

Radial nerve

Question 19

O&I of lateral head of triceps

Answer 19

O: neck of humerus
I: olecranon tuber

Question 20

O&I of accessory head of triceps

Answer 20

O: neck of humerus
I: olecranon tuber

Question 21

O&I of medial head of triceps

Answer 21

O: crest of lesser tubercle near teres major tuberosity
I: olecrannon

Question 22

O&I of anconeus muscle

Answer 22

O: lateral supracondylar crest, lateral & medial epicondyle of humerus
I: lateral surface of the proximal end of ulna (olecranon)

Question 23

Innervation of the anconeus muscle

Answer 23

Radial nerve

Question 24

O&I of biceps brachii

Answer 24

O: supraglenoid tubercle
I: ulnar and radial tuberosities

Question 25

Innervation of biceps brachii

Answer 25

Musculocutaneous nerve

Question 26

O&I of brachialis

Answer 26

O: proximal 3rd of the lateral surface of humerus I: ulnar and radial tuberosities

Question 27

Innervation of brachialis

Answer 27

Musculocutaneous nerve

Question 28

O&I of extensor carpi radialis

Answer 28

O: lateral supracondylar crest I: small tuberosities on the dorsal surfaces of the base of metacarpals II & III

Question 29

Innervation of extensor carpi radialis

Answer 29

Radial nerve

Question 30

O&I of common digital flexor

Answer 30

O: lateral epicondyle of humerus I: extensor process of the distal phalanges of digits II, III, IV, V

Question 31

Innervation of common digital extensor

Answer 31

Radial nerve

Question 32

O&I of lateral digital extensor

Answer 32

O: lateral epicondyle of humerus I: proximal ends of all the phalanges of digits III, IV, V but mainly the extensor processes of the distal phalanges of III, IV, V

Question 33

Innervation of lateral digital extensor

Answer 33

Radial nerve

Question 34

O&I of ulnaris lateralis

Answer 34

O: lateral epicondyle of humerus I: lateral aspect of the proximal end of the metacarpal V and accessory carpal bone

Question 35

Innervation of ulnaris lateralis

Answer 35

Radial nerve

Question 36

O&I of supinator

Answer 36

O: lateral epicondyle of the humerus I: cranial surface of the proximal fourth of the radius

Question 37

Innervation of the supinator

Answer 37

Radial nerve

Question 38

O&I of the abductor digits I longus

Answer 38

O: lateral boarder and cranial surface of the body of the ulna, interosseous membrane I: proximal end of metacarpal I

Question 39

Innervation of abductor digiti I longus

Answer 39

Radial nerve

Question 40

O&I of pronator teres

Answer 40

O: the medial epicondyle of the humerus I: the medial boarder of the radius between the proximal and middle thirds

Question 41

Innervation of pronator teres

Answer 41

Median nerve

Question 42

O&I of flexor carpi radialis

Answer 42

O: medial epicondyle of the humerus and medial border of the radius I: palmar side of the base of metacarapals II and III

Question 43

Innervation of flexor carpi radialis

Answer 43

Median nerve

Question 44

O&I of superficial digital flexor

Answer 44

O: medial epicondyle of humerus I: palmar surface of base (proximal) of the middle phalanges of digits II, III, iV & V

Question 45

Innervation of of superficial digital flexor

Answer 45

Median nerve

Question 46

O&I of ulnar head of flexor carpi ulnaris

Answer 46

O: ulnar head - caudal border and medial surface of olecranon; humeral head - median epicondyle of the humerus I: accessory carpal bone

Question 47

Innervation of the ulnar head of flexor carpi ulnaris

Answer 47

Ulnar nerve

Question 48

O&I of deep digital flexor

Answer 48

O: humeral head - medial epicondyle of humerus, ulnar head - proximal 3/4 of caudal border of ulna I: flexor tubercle of the palmar surface of the distal phalanx of each digit

Question 49

Innervation of deep digital flexor

Answer 49

Median and ulnar nerves

Question 50

O&I of pronator quadratus

Answer 50

Attaches to apposed surfaces of the radius and ulna

Question 51

Innervation of pronator quadratus

Answer 51

Median nerve