Chapter 7 Appendicular Division

Question 1

What bones make up the pectoral (shoulder) girdle?

Answer 1

The clavicle (collarbone) and the scapula (shoulder blade).

Question 2

What is the function of the glenoid cavity in the scapula?

Answer 2

The glenoid cavity is a shallow socket that articulates with the head of the humerus to form the shoulder joint.

Question 3

Name the bones of the forearm and describe their positions.

Answer 3

The radius is the lateral bone (on the thumb side), and the ulna is the medial bone (on the pinky side).

Question 4

How many carpal bones are there, and how are they arranged?

Answer 4

There are 8 carpal bones, arranged in two rows (proximal and distal) in the wrist.

Question 5

What three bones make up each hip bone (coxal bone) in the pelvic girdle?

Answer 5

The ilium, ischium, and pubis.

Question 6

What is the function of the acetabulum in the pelvic girdle?

Answer 6

The acetabulum is a deep socket in the hip bone that articulates with the head of the femur, forming the hip joint.

Question 7

How does the male pelvis differ from the female pelvis?

Answer 7

The female pelvis is broader, lighter, and has a wider pelvic inlet and outlet to accommodate childbirth, while the male pelvis is narrower and more robust.

Question 8

Name the two bones of the lower leg and their respective functions.

Answer 8

The tibia is the larger, weight-bearing bone located medially, and the fibula is the smaller, non-weight-bearing bone located laterally.

Question 9

What are the main functions of the arches of the foot?

Answer 9

The arches of the foot distribute body weight, provide flexibility, and act as shock absorbers.

Question 10

Which bone is the longest and strongest in the human body?

Answer 10

The femur, which is the bone of the thigh.