origins, insertions, actions, innervations lesson 4

Question 1

masseter origin

Answer 1

zygomatic arch

Question 2

masseter insertion

Answer 2

angle and ramus of mandible

Question 3

sternoclediomastoid origin

Answer 3

manubrium and sternal end of clavicle

Question 4

sternocleidomastoid insertion

Answer 4

mastoid process

Question 5

deltoid origin

Answer 5

clavicle; acromion process; spine of scapula

Question 6

deltoid insertion

Answer 6

deltoid tuberosity

Question 7

biceps brachii origin

Answer 7

supraglenoid tubercle; coracoid process

Question 8

biceps brachii insertion

Answer 8

radial tuberosity

Question 9

triceps brachii origin

Answer 9

infraglenoid tuberle; posterior shaft of humerus

Question 10

triceps brachii insertion

Answer 10

olecranon process

Question 11

extensor digitorum origin

Answer 11

later epicondyle of humerus

Question 12

extensor digitorum insertion

Answer 12

digits 2-5

Question 13

flexor digitorum superficialis orign

Answer 13

medial epicondyle of humerus

Question 14

flexor digitorum superficialis insertion

Answer 14

digits 2-5

Question 15

flexor digitorum superficialis insertion

Answer 15

digits 2-5

Question 16

anterior compartment of arm action

Answer 16

flexion at shoulder and elbow joint

Question 17

posterior compartment of arm action

Answer 17

extension at shoulder and elbow joint

Question 18

anterior compartment of forearm action

Answer 18

flexion at wrist and digits

Question 19

posterior compartment of forearm action

Answer 19

extension at wrist and digits

Question 20

musculocutaneous nerve innervation

Answer 20

anterior compartment of arm

Question 21

median nerve innervation

Answer 21

anterior compartment of forearm and thenar region

Question 22

ulnar nerve innervation

Answer 22

hand, except thenar region

Question 23

axillary nerve innervation

Answer 23

shoulder

Question 24

radial nerve innervation

Answer 24

posterior compartments of arm and forearm