Ch 11

Question 1

Elbow Joint Components

Answer 1

Trochlea articulates with trochlear notch of ulna

capitulum articulates with the head of the radius

Question 2

Elbow Joint type

Answer 2

Uniaxial Hinge

Flexion and Extension

Question 3

Radioulnar Joint

Answer 3

Prox-

Dist-

opposite convex-concave for supination

Question 4

Carrying angle

Answer 4

5-10 in males

10-15 in females

Question 5

Medial Colateral Ligament Structure

Answer 5

Triangular

Question 6

Medial Colateral Ligament Attachments

Answer 6

Medial epicondyle humerus to ulna

Question 7

Lateral colateral ligament structure

Answer 7

triangular

Question 8

Lateral colateral ligament attach.

Answer 8

later epicondyle humerus to ulna

Question 9

Annular ligament structure

Answer 9

encompass and support head of radius against the ulna

Question 10

Brachialis prox. attach.

Answer 10

Mid humerus

Question 11

Brachialis Dist. attach.

Answer 11

Ulna

Question 12

Brachialis actions

Answer 12

Elbow flexion (pronate curl)

Question 13

Brachialis Nerve

Answer 13

Musculocutaneous nerve

Question 14

Biceps Brachii prox. attach.

Answer 14

Long head: Supraglenoid tubercle (scapula)

Short head: Coracoid process (scapula)

Question 15

Biceps brachii dist. attach.

Answer 15

Radial tuberosity

Question 16

Biceps Brachii actions

Answer 16

Flexion

Supination (lateral rotation)

Shoulder flexion (shoulder joint)

Question 17

Biceps Brachii Nerve

Answer 17

Musculocutaneous

Question 18

Brachioradialis prox. attach.

Answer 18

Lateral Ridge of Humerus

Question 19

Brachioradialis Dist. attach.

Answer 19

Styloid process of radius

Question 20

Brachioradialis Action

Answer 20

Elbow flexion (hammer curl)

Question 21

Brachioradialis Nerve

Answer 21

Radial Nerve

Question 22

Triceps Prox. attach.

Answer 22

Long head: infraglenoid tubercle (scapula)

Lateral head: greater tubercle

Medial head: posterior humerus

Question 23

Triceps Dist. attach.

Answer 23

Olecrannon process Ulna

Question 24

Triceps action

Answer 24

Elbow extension

Shoulder extension (shoulder joint)

Question 25

Triceps Nerve

Answer 25

Radial Nerve

Question 26

Anconeus Prox. Attach.

Answer 26

Lateral epicondyle Humerus

Question 27

Anconeus Dist. Attach.

Answer 27

Olecrannon process Ulna

Question 28

Anconeus Actions

Answer 28

Stabilize elbow joint

Assists in extension

Question 29

Anconeus Nerve

Answer 29

Radial Nerve

Question 30

Pronator Teres prox. attach.

Answer 30

Medial Epicondyle humerus

Question 31

Pronator Teres dist. attach.

Answer 31

Lateral Radius

Question 32

Pronator Teres actions

Answer 32

Forearm Pronation

assist elbow flexion

Question 33

Pronator Teres Nerve

Answer 33

Median Nerve

Question 34

Pronator Quadratus prox. attach.

Answer 34

Distal Ulna

Question 35

Pronator Quadratus Dist. attach.

Answer 35

Distal Radius

Question 36

Pronator Quadratus actions

Answer 36

Forearm Pronation

Question 37

Pronator Quadratus Nerve

Answer 37

Median Nerve

Question 38

Supinator prox. attach.

Answer 38

Lateral epicondyle humerus

Prox Post Ulna

Question 39

Supinator Dist. Attach.

Answer 39

Radius

Question 40

Supinator Actions

Answer 40

Forearm Supination

Wraps around radius

Question 41

Supinator Nerve

Answer 41

Radial Nerve

Question 42

Active Insufficiency

Answer 42

point where a multijoint muscle cannot shorten any further (agonist)

Question 43

Passive Insufficiency

Answer 43

point where a multijoint muscle cannot elongate any further without damage to its fibers. (antagonist)