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 fractures the lateral end of their clavicle. Which joint is most likely affected?

Accepted Answer

Acromioclavicular joint

Question 3

Which feature of the scapula serves as the attachment point for the biceps muscle?

Accepted Answer

Coracoid process

Question 4

The humerus articulates with which bone at the trochlea?

Accepted Answer

Ulna

Question 5

Which of the following statements about the interosseous membrane is correct?

Accepted Answer

It connects the radius and ulna along their entire length.

Question 6

A patient presents with an inability to extend their elbow beyond a certain point. Which anatomical feature is most likely responsible for preventing hyperextension?

Accepted Answer

Olecranon process

Question 7

Which carpal bones articulate directly with the radius to form the wrist joint?

Accepted Answer

Scaphoid, lunate, triquetrum

Question 8

A person falls on an outstretched hand and fractures the bone that forms the base of the thumb. Which bone is most likely fractured?

Accepted Answer

First metacarpal

Question 9

Which of the following best describes the acetabulum?

Accepted Answer

A socket in the hip bone formed by the fusion of the ilium, ischium, and pubis

Question 10

Which bone is NOT part of the pelvic girdle?

Accepted Answer

Femur

Question 11

A woman in labor benefits from a wider pelvic outlet. Which structural difference in the female pelvis facilitates childbirth?

Accepted Answer

Wider pelvic inlet and broader pubic arch

Question 12

The femur articulates distally with which bones?

Accepted Answer

Tibia and patella

Question 13

Which bone of the lower limb is NOT weight-bearing?

Accepted Answer

Fibula

Question 14

A patient has a fracture at the medial malleolus. Which bone is affected?

Accepted Answer

Tibia

Question 15

Which tarsal bone primarily transmits the weight of the body from the tibia to the foot?

Accepted Answer

Talus

Question 16

How many phalanges are present in the hallux (big toe) of the foot?

Accepted Answer

Two

Question 17

A patient presents with numbness in the hand after hitting the medial epicondyle of the humerus. Which nerve is most likely affected?

Accepted Answer

Ulnar nerve

Question 18

Which of the following best explains why the upper and lower limbs have the same number of bones, despite their different functions?

Accepted Answer

They evolved from the same ancestral limb structure.

Question 19

Which of the following is a function of the clavicle?

Accepted Answer

Acts as a brace to hold the arms laterally

Question 20

A patient has difficulty abducting their arm at the shoulder. Which bony feature is most likely involved in the attachment of the deltoid muscle responsible for this movement?

Accepted Answer

Deltoid tuberosity of the humerus

The Appendicular Skeleton: Structure and Principal Markings

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