$\frac{\text{Mass of bones}}{\text{Total body mass}} \times 100$

$2 \text{ (transverse)} + 1 \text{ (spinous)} + 4 \text{ (articular)} = 7$

Question 1

Which of the following statements about the skeletal system is correct?

Accepted Answer

It accounts for approximately 20% of total body mass.

Question 2

Which bone is NOT one of the eight cranial bones?

Accepted Answer

Mandible

Question 3

A patient presents with a fracture at the coronal suture. Which bones are most likely affected?

Accepted Answer

Frontal and parietal bones

Question 4

Which of the following is a function of the hyoid bone?

Accepted Answer

Serves as an attachment for tongue and neck muscles

Question 5

Which of the following vertebral curvatures is exaggerated in lordosis?

Accepted Answer

Lumbar curvature

Question 6

A patient with scoliosis will have which type of abnormal spinal curvature?

Accepted Answer

Lateral curvature of the spine

Question 7

Which of the following bones forms part of the orbit of the eye?

Accepted Answer

Sphenoid bone

Question 8

Which suture separates the parietal bones from the occipital bone?

Accepted Answer

Lambdoid suture

Question 9

Which of the following is NOT a facial bone?

Accepted Answer

Temporal bone

Question 10

A newborn is diagnosed with craniosynostosis affecting the sagittal suture. What is the most likely consequence?

Accepted Answer

Premature closure of the sagittal suture leading to elongated skull shape

Question 11

Which equation best represents the calculation of body mass percentage contributed by the skeletal system?

Accepted Answer

$\frac{	ext{Mass of bones}}{	ext{Total body mass}} 	imes 100$

Question 12

Which process is unique to the axis (C2) vertebra and allows for rotation of the head?

Accepted Answer

Dens (odontoid process)

Question 13

Which of the following is a correct pairing of cranial fossa and its location?

Accepted Answer

Middle cranial fossa - houses the temporal lobes

Question 14

Which of the following bones is unpaired in the adult human skull?

Accepted Answer

Vomer

Question 15

Which of the following is a function of the vertebral column?

Accepted Answer

Protects the spinal cord

Question 16

A patient with a fracture to the zygomatic bone would most likely experience which symptom?

Accepted Answer

Flattening of the cheek

Question 17

Which of the following bones does NOT contribute to the formation of the nasal cavity?

Accepted Answer

Mandible

Question 18

Which of the following is the correct order of vertebral regions from superior to inferior?

Accepted Answer

Cervical, thoracic, lumbar, sacral, coccygeal

Question 19

Which of the following is a distinguishing feature of cervical vertebrae compared to thoracic and lumbar vertebrae?

Accepted Answer

Presence of transverse foramina

Question 20

Which equation correctly represents the calculation for the number of processes per vertebra?

Accepted Answer

$2 	ext{ (transverse)} + 1 	ext{ (spinous)} + 4 	ext{ (articular)} = 7$

Skeletal System: Structure and Function of Bones and the Axial Skeleton

Study Guide - Practice Questions