Question 1

Which bones make up the pectoral girdle, and what is their primary function in the appendicular skeleton?

Accepted Answer

Clavicle and scapula; they encircle the body and allow for upper limb mobility

Question 2

The clavicle articulates with which two structures at its medial and lateral ends?

Accepted Answer

Sternum and acromion

Question 3

Which anatomical feature of the scapula forms the socket for the shoulder joint?

Accepted Answer

Glenoid cavity

Question 4

A Colles’ fracture typically involves which bone and what is the clinical significance?

Accepted Answer

Radius; it affects wrist movement and alignment

Question 5

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

Accepted Answer

The female pelvis is wider and shallower to accommodate childbirth

Question 6

Which bone is the longest and strongest in the human body, and what joint does its head articulate with?

Accepted Answer

Femur; articulates with the acetabulum

Question 7

What is the function of the patella in the knee joint?

Accepted Answer

It increases the leverage of the quadriceps muscle

Question 8

Which of the following correctly matches the bone to its function in the forearm?

Accepted Answer

Ulna; forms the hinge joint at the elbow

Question 9

Which equation best represents the force transmission through the clavicle during a fall onto an outstretched hand?

Accepted Answer

$$F_{clavicle} = F_{fall}$$

Question 10

Which structure is responsible for the stability of the pelvic girdle and its connection to the axial skeleton?

Accepted Answer

Sacroiliac joint

Question 11

A patient presents with hip dysplasia. Which anatomical abnormality is most likely present?

Accepted Answer

Shallow acetabulum leading to increased risk of hip dislocation

Question 12

Which bones form the wrist joint and allow for its complex movements?

Accepted Answer

Carpals arranged in two rows

Question 13

Which anatomical feature allows the upper limb to have a greater range of motion compared to the lower limb?

Accepted Answer

Shallow glenoid cavity and loose attachment to the axial skeleton

Question 14

Which of the following is true regarding the arches of the foot?

Accepted Answer

They are maintained by bones, ligaments, and tendons

Question 15

Which joint is formed by the articulation of the femur and tibia?

Accepted Answer

Knee joint

Question 16

Which bone is NOT part of the pelvic girdle?

Accepted Answer

Femur

Question 17

Which of the following best explains why the lower limb is more stable but less mobile than the upper limb?

Accepted Answer

The acetabulum is deep and the pelvic girdle is strongly attached to the axial skeleton

Question 18

Which equation would you use to estimate the mechanical advantage provided by the patella in knee extension?

Accepted Answer

$$MA = \frac{Force_{output}}{Force_{input}}$$

Question 19

Which bone articulates with the talus to form the ankle joint?

Accepted Answer

Tibia

Question 20

Which of the following is a sesamoid bone found in the appendicular skeleton?

Accepted Answer

Patella

Appendicular Skeleton: Structure and Function of the Appendicular Bones

Study Guide - Practice Questions