Arm

Question 1

importance of: capitulum

Answer 1

articulates with radius

Question 2

importance of: trochlea

Answer 2

articulates with the ulna

Question 3

importance of: lateral epicondyle

Answer 3

attachment of muscles (post com. of forearm)

Question 4

importance of: medial epicondyle

Answer 4

attachment of muscles (ant com. of forearm)

- ulnar nerve runs posteriorly

Question 5

importance of: radial fossa

Answer 5

accomodate bones of forearm during movement at the elbow

Question 6

importance of: radial groove and location

Answer 6

• radial nerve
• profunda brachii artery
• mid humerus

Question 7

coracobrachialis inserts:

Answer 7

mid humerus

Question 8

importance of: olecranon fossa

Answer 8

receives olecranon of ulna during extension of forearm

Question 9

biceps brachii: location

Answer 9

anterior com. of arm

Question 10

biceps brachii: origin

Answer 10

• long head:
  supraglenoid tubercle
• short head: coracoid process

Question 11

biceps brachii: insertion

Answer 11

• radial tuberosity,

- bicipital aponeurosis -> merge into fascia

Question 12

biceps brachii: innervation

Answer 12

musculocutaneous nerve

Question 13

biceps brachii: action

Answer 13

flex arm, flex and supinate forearm

Question 14

brachialis: location

Answer 14

anterior com. arm

Question 15

brachialis: origin

Answer 15

anterior surface of humerus

Question 16

brachialis: insertion

Answer 16

ulnar tuberosity

Question 17

brachialis: innervation

Answer 17

musculocutaneous nerve

Question 18

coracobrachialis: location

Answer 18

anterior com. of arm

Question 19

coracobrachialis: origin

Answer 19

coracoid process

Question 20

coracobrachialis: insertion

Answer 20

medial surface of humerus

Question 21

coracobrachialis: innervation

Answer 21

musculocutaneous nerve

Question 22

coracobrachialis: action

Answer 22

flex arm at shoulder (glenohumeral) joint

Question 23

brachialis: action

Answer 23

flex forearm

Question 24

eg. Popeye sign

Answer 24

rupture of long head of biceps brachii tendon

Question 25

triceps brachii: location

Answer 25

posterior com. arm

Question 26

triceps brachii: origin (long head)

Answer 26

infraglenoid tubercle

Question 27

triceps brachii: origin (medial head)

Answer 27

post surface of humerus, inferior to radial groove

Question 28

triceps brachii: origin (lateral head)

Answer 28

post surface of humerus, superior to radial groove

Question 29

triceps brachii: insertion

Answer 29

olecranon

Question 30

triceps brachii: innervation

Answer 30

radial nerve

Question 31

triceps brachii: action

Answer 31

extend forearm, extend, adduct the arm at glenohumeral joint

Question 32

anconeus: location

Answer 32

post com. arm

Question 33

anconeus: origin

Answer 33

posterior surface of lateral epicondyle

Question 34

anconeus: insertion

Answer 34

posterior surface of ulna

Question 35

anconeus: innervation

Answer 35

radial nerve

Question 36

anconeus: action

Answer 36

assists in extension of elbow

Question 37

list 3 spaces:

Answer 37

medial triangular, lateral triangular, quadrangular

Question 38

what passes through: medial triangular space

Answer 38

circumflex scapular artery

Question 39

what passes through: lateral triangular space

Answer 39

radial nerve, profunda brachii artery

Question 40

what passes through: quadrangular

Answer 40

axillary nerve, posterior circumflex humeral artery