Q: Which of the following equations best represents the total number of bones in the pectoral girdle and upper limb of one side of the body?

$$2 \text{ (pectoral girdle)} + 1 \text{ (humerus)} + 2 \text{ (forearm)} + 8 \text{ (carpal bones)} + 5 \text{ (metacarpal bones)} + 14 \text{ (phalanges)} = 32$$

Question 1

Which bone forms the only direct bony connection between the pectoral girdle and the axial skeleton?

Accepted Answer

Clavicle

Question 2

A patient presents with a fracture at the acromial end of the clavicle. Which joint is most likely to be affected?

Accepted Answer

Acromioclavicular joint

Question 3

Which of the following correctly lists the bones of the upper limb from proximal to distal?

Accepted Answer

Humerus, ulna, radius, carpal bones, metacarpal bones, phalanges

Question 4

If a person suffers a dislocation at the sternoclavicular joint, which two bones are directly involved?

Accepted Answer

Clavicle and manubrium

Question 5

Which anatomical feature of the clavicle is closest to the midline of the body?

Accepted Answer

Sternal end

Question 6

A baseball pitcher experiences pain in the shoulder after a fall. Imaging reveals damage to the acromioclavicular joint. Which bones form this joint?

Accepted Answer

Scapula and clavicle

Question 7

Which bone of the pectoral girdle serves as the attachment site for the upper limb and articulates with the humerus?

Accepted Answer

Scapula

Question 8

During a physical exam, a physician palpates the conoid tubercle. On which bone is this structure located?

Accepted Answer

Clavicle

Question 9

Which of the following statements about the scapula is correct?

Accepted Answer

It forms the glenohumeral joint with the humerus.

Question 10

A patient has a fracture at the lateral end of the clavicle. Which anatomical term best describes this location?

Accepted Answer

Acromial end

Question 11

Which joint allows for the greatest range of motion in the upper limb?

Accepted Answer

Glenohumeral joint

Question 12

If the humerus is fractured near its proximal end, which joint's function is most likely to be compromised?

Accepted Answer

Glenohumeral joint

Question 13

Which bone is NOT part of the pectoral girdle?

Accepted Answer

Humerus

Question 14

A patient presents with limited movement in the shoulder. Which structure is most likely affected if the problem is at the joint between the scapula and the humerus?

Accepted Answer

Glenohumeral joint

Question 15

Which of the following is the correct anatomical sequence from the shoulder to the fingertips?

Accepted Answer

Humerus, ulna, radius, carpal bones, metacarpal bones, phalanges

Question 16

Which bone articulates with both the manubrium and the acromion?

Accepted Answer

Clavicle

Question 17

A trauma patient has a separation at the acromioclavicular joint. Which movement of the upper limb is most likely to be affected?

Accepted Answer

Abduction of the arm at the shoulder

Question 18

Which anatomical landmark is found on the inferior surface of the clavicle and serves as an attachment for ligaments?

Accepted Answer

Conoid tubercle

Question 19

A patient with a fractured scapula may have difficulty with which of the following actions?

Accepted Answer

Raising the arm above the head

Question 20

Which of the following equations best represents the total number of bones in the pectoral girdle and upper limb of one side of the body?

Accepted Answer

$$2 	ext{ (pectoral girdle)} + 1 	ext{ (humerus)} + 2 	ext{ (forearm)} + 8 	ext{ (carpal bones)} + 5 	ext{ (metacarpal bones)} + 14 	ext{ (phalanges)} = 32$$

Bones of the Skeletal System: Pectoral Girdle and Upper Limb

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