Chapter 20 humerus radius ulna

Question 1

bone of the arm

Answer 1

humerus

Question 2

head

Answer 2

• proximal end

- articulates with the glenoid cavity

Question 3

greater tubercle

Answer 3

• lateral to lesser tubercle

- attachment of 3 rotator cuff muscles

Question 4

lesser tubercle

Answer 4

• medial to the greater tubercle

- attachment of 1 rotator cuff muscle

Question 5

intertubercular sulcus

Answer 5

• groove between greater and lesser tubercles

- attachment of the latissimus dorsi and pectoralis major

Question 6

deltoid tuberosity

Answer 6

• rough
• v shaped area on diaphysis
• attachment of deltoid

Question 7

capitulum

Answer 7

• rounded knob on distal end

- articulates with the head of the radius

Question 8

trochlea

Answer 8

• pulley shaped knob on distal end

- articulates with the trochlear notch

Question 9

olecranon fossa

Answer 9

-receives olecranon process during forearm extension

Question 10

lateral epicondyle

Answer 10

attachment of most extensor muscles found in the ante brachium

Question 11

medial epicondyle

Answer 11

attachment of most flexor muscles found in the antebrachium

Question 12

olecranon process

Answer 12

attachment of the triceps brachii

Question 13

medial bone of the forearm

Answer 13

ulna

Question 14

coronoid process

Answer 14

attachment of the brachialis

Question 15

trochlear notch

Answer 15

articulates with the trochlea

Question 16

radial notch

Answer 16

articulates with the head of a radius

Question 17

head of ulna

Answer 17

articulates with the ulnar notch

Question 18

lateral bone of the forearm

Answer 18

radius

Question 19

head of radius

Answer 19

articulates with the capitulum and radial notch

Question 20

radial tuberosity

Answer 20

attachment of biceps brachii muscle

Question 21

ulnar notch

Answer 21

articulates with the head of the ulna

Question 22

nutrient foramen

Answer 22

passageway for vessels