$$12 \text{ pairs} = 24 \text{ ribs}$$

Question 1

Which of the following best describes the function of the axial skeleton?

Accepted Answer

It forms the body’s longitudinal axis and protects vital organs within body cavities.

Question 2

How many bones make up the adult human skeleton?

Accepted Answer

206

Question 3

Which bone marking is most likely to provide a pathway for blood vessels and nerves?

Accepted Answer

Depression

Question 4

A patient suffers a fracture in the diaphysis of the femur. Which part of the bone is affected?

Accepted Answer

The shaft or middle portion of the bone

Question 5

Which of the following is NOT a function of the thoracic cage?

Accepted Answer

Encasing and protecting the spinal cord

Question 6

Which equation correctly represents the total number of bones in the adult human skull?

Accepted Answer

$$8 + 14 = 22$$

Question 7

Which bone type is characterized by being roughly cube-shaped and found in the wrist and ankle?

Accepted Answer

Short bone

Question 8

A forensic anthropologist finds a bone with a round shape embedded within a tendon. What type of bone is this?

Accepted Answer

Sesamoid bone

Question 9

Which of the following structures is responsible for producing blood cells in a long bone?

Accepted Answer

Red bone marrow

Question 10

If a patient has damage to the vertebral column resulting in loss of protection for the spinal cord, which region is most likely affected?

Accepted Answer

Axial skeleton

Question 11

Which of the following is a correct description of a projection bone marking?

Accepted Answer

It provides sites where bones articulate or where ligaments and tendons attach.

Question 12

A long bone is sectioned to reveal its internal anatomy. Which structure is found at the center and contains yellow bone marrow?

Accepted Answer

Medullary cavity

Question 13

Which of the following equations correctly calculates the total number of vertebrae in the vertebral column?

Accepted Answer

$$24 + 9 = 33$$

Question 14

Which bone type is best described as broad and thin, providing protection and extensive surfaces for muscle attachment?

Accepted Answer

Flat bone

Question 15

A patient presents with a fracture in the region of the femur where the nutrient artery enters. Which anatomical structure is most likely involved?

Accepted Answer

Nutrient foramen

Question 16

Which of the following is a function of the appendicular skeleton?

Accepted Answer

Facilitating movement by providing attachment points for muscles

Question 17

Which of the following best describes the location and function of the periosteum?

Accepted Answer

It covers the outer surface of bone and serves as an attachment point for tendons and ligaments.

Question 18

Which of the following is a real-life consequence of damage to the projections on a bone?

Accepted Answer

Reduced ability for muscles and ligaments to attach, leading to decreased movement or stability

Question 19

Which of the following equations represents the number of ribs in the human thoracic cage?

Accepted Answer

$$12 	ext{ pairs} = 24 	ext{ ribs}$$

Question 20

A patient has a congenital defect resulting in the fusion of several vertebrae. Which part of the vertebral column is most likely affected?

Accepted Answer

Sacrum and coccyx

The Skeletal System: Structure, Function, and Classification

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