Question 1

Which of the following is NOT a function of the skeletal system?

Accepted Answer

Production of hormones

Question 2

What is the process of blood cell formation in the skeletal system called?

Accepted Answer

Hematopoiesis

Question 3

Which type of bone is primarily responsible for protecting organs such as the brain and heart?

Accepted Answer

Flat bones

Question 4

A patient presents with a blood calcium level of 7 mg/100 mL (below normal). Which hormone will be released to restore homeostasis, and what is its effect?

Accepted Answer

Parathyroid hormone (PTH); stimulates osteoclasts to release calcium from bone

Question 5

Which of the following best describes the structure of a long bone?

Accepted Answer

A shaft (diaphysis) composed of compact bone and ends (epiphyses) composed mostly of spongy bone

Question 6

Which bone marking is a site for muscle attachment and always begins with the letter 'T'?

Accepted Answer

Tuberosity

Question 7

Which of the following bones is classified as an irregular bone?

Accepted Answer

Vertebra

Question 8

During bone growth, which structure is responsible for lengthwise growth in children and adolescents?

Accepted Answer

Epiphyseal plate

Question 9

Which of the following best describes the microscopic structure of compact bone?

Accepted Answer

Osteons (Haversian systems) with concentric lamellae around a central canal

Question 10

A 70-year-old woman presents with a pronounced forward curvature of her upper spine, as shown in the provided image. What is the most likely diagnosis?

Accepted Answer

Kyphosis

Question 11

Which of the following joints is classified as a synovial joint and allows for the greatest range of motion?

Accepted Answer

Ball-and-socket joint

Question 12

Which bone is the only one in the body that does NOT articulate with any other bone?

Accepted Answer

Hyoid bone

Question 13

Which of the following is a distinguishing feature of the female pelvis compared to the male pelvis?

Accepted Answer

The pelvic inlet is larger and more circular

Question 14

Which of the following best describes appositional growth of bone?

Accepted Answer

Increase in bone width by addition of bone matrix to the outside of the diaphysis

Question 15

Which of the following bones forms the lateral part of the forearm in anatomical position?

Accepted Answer

Radius

Question 16

A patient suffers a fracture to the bone that forms the heel. Which bone is most likely fractured?

Accepted Answer

Calcaneus

Question 17

Which of the following is a characteristic of synovial joints?

Accepted Answer

Presence of a joint cavity filled with synovial fluid

Question 18

Which hormone is released when blood calcium levels are high, and what is its effect?

Accepted Answer

Calcitonin; stimulates calcium deposition in bone

Question 19

Which of the following best describes the difference between the axial and appendicular skeleton?

Accepted Answer

The axial skeleton forms the longitudinal axis of the body; the appendicular skeleton includes the limbs and girdles

Question 20

Which of the following is true regarding the development of the human skeleton?

Accepted Answer

The first long bones of a fetus are made of hyaline cartilage

The Skeletal System: Structure, Function, and Development

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