Skeletal System Pre-Quiz Juniors

Bone surface markings ____________________

• allow for joint and muscle attachment

• are only found in the skull

• do not serve any functional purpose

• are present only in children

The two bones that join together to form the top and sides of the cranial cavity are the ____________________

• parietal bones

• temporal bones

• occipital bones

• frontal bones

During a boxing competition, a boxer receives a hard upward blow to the nose. Later, he notices clear fluid leaking from his nose. What is the most likely explanation for this occurrence?

• The temporal bone was fractured in the accident, dislodging the auditory ossicles and allowing fluid normally found in middle of ear to leak out.

• The sphenoid bone was fractured in the accident, disrupting the boundary the nose and throat, increasing flow of nasal secretions.

• The frontal bone was fractured, allowing tears to flow from the orbital cavity and out through the nose.

• The cribriform plate was fractured, disrupting the meninges and allowing cerebrospinal fluid to leak out.

The following bones contribute to the formation of the orbit these include:

• Lacrimal, nasal, palatine

• Nasal, inferior nasal conchae, vomer

• Maxillae, zygomatic, lacrimal, palatine

• Lacrimal and nasal

The sinuses

• open the internal nose, giving nasal secretions a pathway in which to drain.

• are filled with air, which offers protection to the brain.

• - contain tiny projections to support the bones of the face.

• are filled with air and act as resonators for sound production.

The vertebral column consists of five main sections. Beginning in the neck, the sections are

• cervical, thoracic, lumbar, sacrum, and coccyx

• cervical, lumbar, thoracic, sacrum, and coccyx

• cervical, throacic, sacrum, lumbar, and coccyx

• cervical, thoracic, lumbar, coccyx, and sacrum

The bumps you feel when you run your hand along the spine are

• the transverse processes of the vertebrae.

• the bodies of the vertebrae.

• the main vertebral foramen.

• the spinous processes of the vertebrae.

The weight-bearing portion of the vertebra is called the

• Vertebral body

• Vertebral foramen

• Annulus fibrosus

• Transverse process

The purpose of the intervertebral disks is/are to

• Stabilize the vertebral column

• Support weight and absorb shock

• Provide protection to the spinal cord

• Absorb shock and allow for forward and backward movements

The ribs that attach to the sternum include

• The first 3 ribs

• The first 7 ribs

• The first 10 ribs

• All of the ribs