Bones And Landmarks

Question 1

Spine of scapula

Answer 1

Superficial ridge located just off top of shoulder, running diagonally from acromion to medial border of scapula.

Question 2

Medial Border of Scapula

Answer 2

Long edge of scapula that runs parallel to vertebral column. (Inside edge of scapula)

Question 3

Inferior Angle of Scapula

Answer 3

Superficial angle located at lower end of medial border of scapula

Question 4

Superior Angle of Scapula

Answer 4

Superior end of medial border of scapula, deep to Trapezius muscles.

Question 5

Lateral Border of Scapula

Answer 5

Extends superiorly and laterally from inferior angle of scapula toward axilla (armpit) (outside edge of scapula)

Question 6

Infraglenoid Tubercle

Answer 6

Most superior edge of Lateral border of scapula - not distinguishable by looking, but as attachment site for triceps brachii long head. Deep to Teres minor and deltoid muscles.

Question 7

Infraspinous Fossa of Scapula

Answer 7

Triangular depression inferior to spine of scapula; area of infraspinatus muscle

Question 8

Supraspinous Fossa of Scapula

Answer 8

Depression located superior to the spine of scapula. Area of supraspinatus muscle.

Question 9

Subscapular Fossa

Answer 9

Depression located on scapula underside surface, next to rib cage. Area of subscapularis muscle.

Question 10

Acromion of Scapula

Answer 10

Lateral wraparound edge of spine of scapula located at top of shoulder. Has flat surface and articulates with clavicle lateral end.
-acromial angle is small corner that can be felt alon acromion’s lateral/posterior edge.

Question 11

Clavicle

Answer 11

Superficial and horizontal bone located across upper chest and has gentle S shape.
Both ends of clavicle superficial.
-Lateral end relatively flat and rises slightly higher than acromion
-Medial end is round and articulates with sternum

Question 12

Acromioclavicular Joint

Answer 12

Small articulation between acromion of scapula and acromial end of clavicle

Question 13

Sternoclavicular Joint

Answer 13

Articulation between sternal end of clavicle and sternum.
-contains small, impalpable fibrous disc.

Question 14

Coracoid Process

Answer 14

Beak-like projection found inferior to shaft of clavicle, often found in deltopectoral groove.

Question 15

Deltoid Tuberosity

Answer 15

Located on lateral side of humerus shaft near the middle. Small, low bump that is attachment site for deltoid fibers.

Question 16

Greater Tubercle of Humerus

Answer 16

Located inferior and lateral to acromion. Shaped more like low mound than pointy hill.

Question 17

Intertubercular Groove

Answer 17

Situated between greater and lesser tubercles, roughly a pencil’s width in diameter.

Question 18

Lesser Tubercle of Humerus

Answer 18

Smaller than greater tubercle, and medial to greater tubercle on head of humerus.

Question 19

Olecranon Process

Answer 19

Proximal end of ulna, articulates with distal humerus. Forms point of elbow

Question 20

Olecranon Fossa

Answer 20

Large cavity on posterior, distal end of humerus designed to accommodate olecranon process when elbow extended.

Question 21

Medial Epicondyle of Humerus

Answer 21

Directly medial from olecranon process. Superficial and has protruding, spherical shape.

Question 22

Lateral Epicondyle of Humerus

Answer 22

Smaller than medial epicondyle, and is lateral to olecranon process.

Question 23

Lateral Supracondylar Ridge of Humerus

Answer 23

Extends proximally from epicondyle, located superficially.

Question 24

Medial Supracondylar Ridge of Humerus

Answer 24

Extends proximally from epicondyle. Medial Ridge sinks into arm, situated close to ulnar nerve.

Question 25

Shaft of Ulna

Answer 25

Long, straight shaft extending from olecranon process to head of ulna. Superficial, palpable edge that runs along forearm's posterior medial aspect (in anatomical position)

Question 26

Head of Ulna

Answer 26

Superficial knob visible along posterior, medial side of wrist (in anatomical position) that can disrupt placement of watchband.

Question 27

Shaft of Radius

Answer 27

Located on lateral side (thumb side) of forearm, most of shaft of radius buried under muscle tissue.

Question 28

Head of Radius

Answer 28

Distal to humerus's lateral epicondyle, it forms radius's proximal end and has circular, bell shape. Pivoting point for supination/pronation of forearm.

Question 29

Styloid Process of Radius

Answer 29

On inside of wrist, near thumb (lateral side of radius) - wider, more substantial mound of bone

Question 30

Lister’s Tubercle

Answer 30

(Aka. Dorsal Tubercle) top of wrist - small knob; located on dorsal surface of radial styloid process; feels like small oblong point on radius about an inch away from head of radius