Lec 3 Reading Questions

Question 1

what makes up the pectoral girdle?

Answer 1

scapula and clavicle

Question 2

what does the capitulum articlate with?

Answer 2

the head of the radius

Question 3

what bones make up the carpal arch?

Answer 3

pisiform, triquetral

trapezium, trapezoid, capitate and hamate

Question 4

where does the supraspinatus insert?

Answer 4

at the superior part of greater tubercle of humerus

Question 5

where does the infraspinatus insert?

Answer 5

medial part of greater tubercle of humerus

Question 6

where does the subscapularis insert?

Answer 6

lesser tubercle of humerus

Question 7

where does the teres minor insert?

Answer 7

greater tubercle of humerus

Question 8

where does the teres major insert?

Answer 8

medial lip of intertuburcular sulcus

Question 9

where does the brachioradialis originate and insert?

Answer 9

originates at lateral supraepicondylar ridge of humerus and inserts at lateral distal end of radius

Question 10

where does the brachialis originate and insert?

Answer 10

originates , anterior mid humerus, and inserts at the coronoid process of the ulna

Question 11

where does the coracobrachialis origin/insert

Answer 11

originates at coracoid process and inserts anterior/medial about mid shaft of humerus

Question 12

where does the extensor carpi radialis originate and insert?

Answer 12

originates at the lateral supraepicondylar ridge of humerus (longus) and the lateral epicondyle (brevis)
-inserts at the base of metacarpals 2 and 3, (2 is longus, brevis is 2 and 3)

Question 13

where does extensor carpi ulnaris origin/insert

Answer 13

originates at lateral supraepicondylar ridge, and inserts at base of metacarpal 5

Question 14

where does the extensor digitorum originate and insert?

Answer 14

origin at lateral epicondyle of humerus , and inserts at four tendons which end up going to distal phalanges of 2-5

Question 15

where does the supinator originate and insert?

Answer 15

origin at lateral epicondyle of humerus and at the supinator crest of the ulna, inserts on lateral of radius (pretty high up)

Question 16

where does the flexor carpi ulnaris originate and insert?

Answer 16

originates at the medial epicondyle of humerus, and inserts at base of metacarpal 5

Question 17

where does the flexor carpi radialis originate and insert?

Answer 17

originates at medial epicondyle of humerus , inserts at base of metacarpals 2 and 3

Question 18

where does the pronator teres originate and insert>

Answer 18

originates at medial epicondyle and supraepicondylar ridge, and at the medial side of the coronoid process of the ulna
inserts on lateral surface of radius, about mid shaft

Question 19

where does the flexor digitorum superficialis originate/insert?

Answer 19

originates at medial epicondyle of humerus and coronoid process, and oblique line of radius
inserts at middle phalanges of 2-5

Question 20

where does the flexor digitorum profundus originate/insert

Answer 20

originates at medial and anterior of ulna, and anterior medial half of interosseous membrane
inserts at distal phalanges of 2-5

Question 21

how does pronator quadratus tilt?

where does insert and originate

Answer 21

it is higher up on the ulna and lower on the radius

It originates at distal anterior surface of ulna and inserts at distal anterior part of radius (more distal)