Question 1

Which bone forms the only direct articulation between the upper limb and the axial skeleton?

Accepted Answer

Clavicle

Question 2

The acromioclavicular joint is formed by the articulation of which two bones?

Accepted Answer

Scapula and clavicle

Question 3

Which anatomical landmark on the clavicle serves as an attachment point for the conoid ligament?

Accepted Answer

Conoid tubercle

Question 4

A patient presents with a fracture at the acromial end of the clavicle. Which joint's stability is most likely compromised?

Accepted Answer

Acromioclavicular joint

Question 5

Which of the following best describes the orientation of the clavicle when viewed from above?

Accepted Answer

The sternal end is medial and the acromial end is lateral

Question 6

If the conoid tubercle is damaged, which ligament's function is most likely affected?

Accepted Answer

Conoid ligament

Question 7

Which equation best represents the force ($F$) transmitted through the clavicle when supporting a weight ($W$) at the acromial end, assuming the clavicle acts as a lever with length $L$ and the force is applied at a distance $d$ from the sternal end?

Accepted Answer

$F = \frac{W \cdot d}{L}$

Question 8

Which anatomical feature of the clavicle is most likely to be palpated when assessing for a fracture near the shoulder?

Accepted Answer

Acromial end

Question 9

A trauma patient has lost the ability to elevate the shoulder. Which bone and landmark are most likely involved?

Accepted Answer

Clavicle, acromial end

Question 10

Which of the following is NOT a function of the clavicle?

Accepted Answer

Forming the glenoid cavity for the humerus

Question 11

During a physical exam, a physician palpates a bony prominence on the superior aspect of the shoulder. Which structure is being palpated?

Accepted Answer

Acromion of the scapula

Question 12

Which ligament attaches to the impression for the costoclavicular ligament on the clavicle?

Accepted Answer

Costoclavicular ligament

Question 13

A patient with a fracture at the sternal end of the clavicle may have difficulty with which movement?

Accepted Answer

Stabilizing the pectoral girdle to the axial skeleton

Question 14

Which anatomical landmark is found on the inferior surface of the clavicle and is important for ligament attachment?

Accepted Answer

Conoid tubercle

Question 15

If the trapezoid line of the clavicle is fractured, which ligament's function may be compromised?

Accepted Answer

Trapezoid ligament

Question 16

Which equation would you use to calculate the torque ($	au$) generated at the acromioclavicular joint when a force ($F$) is applied at a perpendicular distance ($r$) from the joint?

Accepted Answer

$	au = F \cdot r$

Question 17

Which of the following best describes the anatomical position of the clavicle in relation to the first rib?

Accepted Answer

Superior and anterior

Question 18

A patient with a dislocated acromioclavicular joint will most likely experience pain during which movement?

Accepted Answer

Elevation of the arm above the head

Question 19

Which structure is most likely to be injured in a fall directly onto the shoulder?

Accepted Answer

Acromioclavicular joint

Question 20

Which anatomical feature of the clavicle is closest to the attachment of the pectoralis major muscle?

Accepted Answer

Sternal end

Bones, Part 2: The Appendicular Skeleton – Structure and Function

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