Q: Which of the following equations best represents the total number of bones in the appendicular skeleton, given that there are 126 bones in total?

$$126 = 2 \times (pectoral~girdle~+~upper~limb~+~pelvic~girdle~+~lower~limb)$$

Question 1

Which of the following bones is NOT part of the pectoral (shoulder) girdle?

Accepted Answer

Humerus

Question 2

A patient presents with a fracture at the greater tubercle. Which bone is affected?

Accepted Answer

Humerus

Question 3

Which bone marking on the scapula articulates with the head of the humerus to form the shoulder joint?

Accepted Answer

Glenoid fossa (cavity)

Question 4

A forensic anthropologist is examining a pelvis with a wide subpubic angle and a broad, shallow pelvic cavity. Which sex is this pelvis most likely from?

Accepted Answer

Female

Question 5

Which of the following correctly lists the bones of the pelvic girdle?

Accepted Answer

Ilium, ischium, pubis

Question 6

A patient has difficulty rotating their arm at the shoulder. Which bone marking is most likely involved in this movement?

Accepted Answer

Glenoid fossa (cavity)

Question 7

Which of the following is a correct sequence of bones from proximal to distal in the upper limb?

Accepted Answer

Humerus, radius, carpals, phalanges

Question 8

The acetabulum is a feature of which bone group?

Accepted Answer

Pelvic girdle

Question 9

Which bone marking serves as the point of articulation between the ulna and the humerus at the elbow joint?

Accepted Answer

Olecranon fossa

Question 10

A patient falls on an outstretched hand and fractures the styloid process. Which bone could be affected?

Accepted Answer

Radius

Question 11

Which of the following best describes the function of the clavicle in the pectoral girdle?

Accepted Answer

It acts as a strut to keep the scapula in position

Question 12

Which bone marking is found on both the radius and the ulna?

Accepted Answer

Styloid process

Question 13

A patient is diagnosed with a fracture of the iliac crest. Which region of the skeleton is affected?

Accepted Answer

Pelvic girdle

Question 14

Which of the following is NOT a bone of the upper limb?

Accepted Answer

Femur

Question 15

In a clinical scenario, a patient has a dislocated shoulder. Which two bones are primarily involved in this injury?

Accepted Answer

Scapula and humerus

Question 16

Which bone marking is specifically associated with the attachment of the deltoid muscle?

Accepted Answer

Greater tubercle of the humerus

Question 17

A radiograph shows a fracture at the anatomical neck of the humerus. Which joint is most likely to be affected in terms of mobility?

Accepted Answer

Shoulder joint

Question 18

Which of the following equations best represents the total number of bones in the appendicular skeleton, given that there are 126 bones in total?

Accepted Answer

$$126 = 2 	imes (pectoral~girdle~+~upper~limb~+~pelvic~girdle~+~lower~limb)$$

Question 19

A patient is unable to flex their forearm at the elbow. Which bone marking is most likely involved in this movement?

Accepted Answer

Olecranon fossa

Question 20

Which of the following best describes the difference between the male and female pelvis?

Accepted Answer

The female pelvis has a wider subpubic angle and a broader pelvic inlet

The Appendicular Skeleton: Structure and Key Features

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