Humerus and Shoulder Girdle Anatomy

Question 1

What is the longest bone in the upper limb?

Answer 1

Humerus

Question 2

The bone does the humerus articulate with?

Answer 2

Scapula at the scapulohumeral joint (shoulder joint)

Question 3

What is the most proximal part of the of the humerus?

Answer 3

Head of humerus

Question 4

What part of the humerus is lateral and inferior to the head?

Answer 4

Anatomic neck of humerus

Question 5

What are the processes below the anatomic neck of the humerus?

Answer 5

Lesser tubercle - inferior and lateral process
Greater tubercle - larger lateral process

Question 6

What is the intertubercular groove?

Answer 6

Groove between the two tubercles

Question 7

What is the part of the humerus inferior to the head and tubercles?

Answer 7

Surgical Neck (site of most frequent fractures requiring surgery)

Question 8

What is another word for shaft?

Answer 8

Body of humerus

Question 9

What is the raised triangular elevation along the anterolateral surface of body?

Answer 9

Deltoid tuberosity

Question 10

What two bones does the shoulder girdle consist of?

Answer 10

The clavicle and scapula

Question 11

What is the function of the clavicle and shoulder girdle?

Answer 11

Connect each upper limb to the trunk

Question 12

Where does the shoulder girdle connect to the trunk anteriorly?

Answer 12

It connects at the upper sternum

Question 13

Where does the shoulder girdle connect to the trunk posteriorly?

Answer 13

Trick Question! It doesn’t connect posteriorly

Question 14

What level is the upper margin of the scapula?

Answer 14

Second posterior rib

Question 15

What level is the lower margin of the scapula?

Answer 15

Seventh posterior rib (T7)

Question 16

What are the two ends of the clavicle?

Answer 16

Acromial - lateral end
Sternal - medial end

Question 17

What is the acromioclavicular joint?

Answer 17

Joint between the acromial end of clavicle and acromion of the scapula

Question 18

What does the sternal end of the clavicle articulate with?

Answer 18

The manubrium (upper portion of sternum)

Question 19

What is the sternoclavicular joint?

Answer 19

Joint between sternal end of clavicle and sternum

Question 20

What is the structure between both sternoclavicular joints?

Answer 20

The jugular notch

Question 21

What is the posterior part of the shoulder girdle?

Answer 21

The scapula

Question 22

What are the three borders of the scapula?

Answer 22

Medial - border closer to vertebrae
Superior - uppermost argin
Lateral - border closer to the axilla (armpit)

Question 23

What the three corners of the scapula called?

Answer 23

Angles

Question 24

Which angle of the scapula is the thickest?

Answer 24

Lateral angle (also called the head of the scapula)

Question 25

What is another name for the shoulder joint?

Answer 25

Scapulohumeral or glenohumeral joint

Question 26

What is the anterior surface of the scapula?

Answer 26

Costal surface

Question 27

What is the most lateral part of the scapula?

Answer 27

The acromion

Question 28

What three joints are in the shoulder girdle?

Answer 28

sternoclavicular (SC) joint, acromioclavicular (AC) joint, and scapulohumeral (shoulder) joint

Question 29

What type of joint are the 3 three joints in the shoulder girdle?

Answer 29

They are all synovial joints

Question 30

What type of movement are the 3 joints in the shoulder girdle?

Answer 30

Sternoclavicular - Ball in socket, allowing flexion, extension, abduction, adduction, and circumduciton Acromioclavicular - plane or gliding Scapulohumeral - plane or gliding