Bones of the Shoulder and Arm

Question 1

The only bony attachment between the upper limb and the axial skeleton.

Answer 1

Clavicle.

Question 2

Articulates laterally with the acromion of the scapula and forms the ______________ _______.

Answer 2

Acromial end; acromioclavicular joint.

Question 3

Articulates medially with the manubrium and forms the ____________ ______.

Answer 3

Sternal end; sternoclavicular joint.

Question 4

Located on the inferior surface of the lateral clavicle and serves as an attachment for the __________ ______.

Answer 4

Conoid tubercle; coracoclavicular ligament.

Question 5

A large, flat triangular bone with two angles, three borders, two surfaces, and three processes.

Answer 5

Scapula.

Question 6

What are the two angles of the scapula?

Answer 6

Superior and Inferior

Question 7

What are the three borders of the scapula?

Answer 7

Superior, lateral, and medial.

Question 8

What are the two surfaces of the scapula?

Answer 8

Costal and Posterior.

Question 9

What are the three processes of the scapula?

Answer 9

Acromion, Coracoid, and Spine.

Question 10

Located anteriorly and characterized by a shallow, concave of scapula.

Answer 10

Subscapular fossa.

Question 11

A large projection of the anterolateral surface of the spine.

Answer 11

Acromion.

Question 12

Very prominent and palpable; subdivides the posterior surface of the scapula into a small supraspinous fossa and a larger infraspinous fossa, also serves as an attachment for the trapezius and deltoid muscles.

Answer 12

Spine.

Question 13

Located on the posterior surface of the scapula and superior to the spine of the scapula. Serves as an attachment for the supraspinatus muscle.

Answer 13

Supraspinatus fossa.

Question 14

Located on the posterior surface of the scapula and inferior to the spine of the scapula. Serves as an attachment for the infraspinatus muscle.

Answer 14

Infraspinatus fossa.

Question 15

A small notch medial to the root of the coracoid process where the suprascapular nerves courses. The superior transverse scapular ligament converts the suprascapular notch into a foramen.

Answer 15

Suprascapular notch.

Question 16

A shallow cavity that articulates with the head of the humerus to form the glenohumeral joint.

Answer 16

Glenoid fossa.

Question 17

Located superior to the glenoid fossa and serves as the attachment for the long head of the biceps brachii muscle.

Answer 17

Supraglenoid tubercle.

Question 18

Located inferior to the glenoid fossa and serves as the attachment for the long head of the triceps brachii muscle.

Answer 18

Infraglenoid tubercle.

Question 19

A prominent and palpable hook-like structure inferior to the clavicle. Serves as the attachment for the pectoralis minor, coracobrachialis, and short head of the biceps brachii muscle.

Answer 19

Coracoid process.

Question 20

This is the longest bone of the arm and is characterized by many distinct features that allow the upper extremity to move through a significant ROM.

Answer 20

Humerus.

Question 21

A ball-shaped structure that articulates with the glenoid cavity.

Answer 21

Head.

Question 22

Formed by a narrow constriction immediately distal to the head of the humerus.

Answer 22

Anatomical neck.

Question 23

Lies distal to the anatomical neck and tubercles of the humerus. The axillary nerve and the posterior humeral circumflex artery course into the posterior compartment of the arm deep to the __________ ____.

Answer 23

Surgical neck.

Question 24

Lateral enlargement on the proximal posterolateral humerus; attachment site for supraspinatus, infraspinatus, and teres minor muscles.

Answer 24

Greater tubercle.

Question 25

Smaller enlargement on the proximal, anterior humerus; attachment site for the subscapularis muscle.

Answer 25

Lesser tubercle.

Question 26

A deep sulcus between the greater and lesser tubercles, where the long head of the biceps brachii tendon courses en route to the supraglenoid tubercle.

Answer 26

Intertubercular groove.

Question 27

A distinct groove on the posterior surface of the humerus, where the radial nerve and the deep brachial artery course.

Answer 27

Radial groove.

Question 28

A large V-shaped protrusion on the lateral surface of the humerus, midway along its length where the deltoid muscle attaches.

Answer 28

Deltoid tuberosity.

Question 29

Located on the distal lateral end of the humerus and provides an attachment surface for the posterior forearm muscles.

Answer 29

Lateral epicondyle. (Extensors)

Question 30

Located on the distal medial end of the humerus and provides an attachment surface for the anterior forearm muscles.

Answer 30

Medial epicondyle. (Flexors)

Question 31

Characterized by a pulley shaped; it helps guide the hinge joint; articulates with trochlear notch of the ulna.

Answer 31

Trochlea.

Question 32

Characterized by its oval, convex shape for articulation with the radial head.

Answer 32

Capitulum.

Question 33

Located on the distal anterior surface of the humerus; associated with the coronoid process of the ulna.

Answer 33

Coronoid fossa.

Question 34

Located on the distal posterior surface of the humerus; associated with the olecranon process of the ulna.

Answer 34

Olecranon fossa.