A&P Practice Quiz (ch7)

The human skeleton consists of __________.

206 bones

The skull consists of __________.

22 bones

The vertebral column consists of __________.

26 bones

Which of the following statements is correct regarding the true ribs, or vertebrosternal ribs?

All of the listed responses are correct.

The fibrous membranes found between the cranial bones of infants are called fontanelles. What do these fontanelles do?

All of the listed responses are correct. -They allow the brain of the developing fetus in the womb to expand. -They close within one or two months after birth, with the exception of the anterior fontanelle. -They allow flexibility in the skull bones during the birth process.

Which of these statements concerning the paranasal sinuses is/are true?

All of the listed responses are correct. -They are lined with mucous epithelium. -They lighten the bones of the skull. -They help provide warm and humid air to the lungs.

Which of these statements concerning the facial bones is/are correct?

All of the listed responses are correct. -They protect the entrances to the respiratory and digestive tracts. -They include six pairs of bones and two unpaired bones. -They are primarily linked to each other through immovable joints called sutures.

Which of the following is/are true of the first cervical vertebra?

All of the listed responses are correct. -is called the atlas -has no body -supports the head

With which bone(s) does the sphenoid bone articulate?

All of the listed responses are correct. parietal bone, occipital bone, frontal bone

Which of the following statements about the hyoid is INCORRECT?

It articulates with the cervical vertebrae.

Which of the following statements is INCORRECT?

Mastoiditis is an inflammation of the mandible at the point where it articulates with the temporal bone.

Which of the following statements about spinal curvature is FALSE?

Newborns, like adults, have four spinal curvatures.

Which of the following statements about the foramina of the skull is INCORRECT?

One of the foramina of the temporal bone is the foramen rotundum.

Which of the following statements about the vertebral column is INCORRECT?

The auricular surface of the sacrum is the point of articulation of the coccyx to the sacrum.

Which of the following statements about the skull is FALSE?

The only bones that contain sinuses are in the cranium.

Which of the following statements about the ribs is INCORRECT?

The rib articulates with the sternum at the head, or capitulum, of the rib.

Which of the following statements about the axial skeleton is FALSE?

There are two bones that are associated with the skull but are not actually part of its structure.

The inferior nasal conchae __________.

articulate with the ethmoid, maxillary, palatine, and lacrimal bones

The five fused vertebrae in the sacrum perform all EXCEPT which of the following functions?

bearing the most weight in the vertebral column

Which of the following bones form(s) the nasal septum?

both the vomer and the perpendicular plate of the ethmoid bone

What are the primary types of vertebra?

cervical, thoracic, and lumbar

The functions of the thoracic cage do NOT include which of the following?

enabling lateral rotation of the head, as in shaking the head to indicate "no" Remember that there is no direct articulation between the thoracic cage and the skull.

Which of the following bones form(s) part of both the orbit and the nasal complex?

ethmoid bone Remember that this bone also makes up part of the nasal septum.

Which of the following includes bones belonging to the axial skeleton?

frontal bone, hyoid bone, thoracic vertebra, and true ribs

The axis __________.

has a toothlike process called the dens and is the second cervical vertebra

Which structure protects the spinal column from compression and acts like a shock absorber?

intervertebral disc Remember that this is made from fibrocartilage.

Thoracic vertebrae can be distinguished by __________.

large transverse processes and long inferiorly directed spinous processes

Lumbar vertebrae can be distinguished by __________.

massive bodies and curved articular surfaces

Which of the following fontanelle locations is NOT correctly identified?

mastoid fontanelle—center of sagittal suture between parietal bones

The sella turcica is __________.

part of the sphenoid bone and also supports the pituitary gland

Which of the following relationships is NOT correct for the regions of the vertebral column?

sacral—3 vertebrae fused into single bone

The optic nerves pass from the eyes to the brain through openings in which bone?

sphenoid bone

Which of the following bones is NOT part of the orbital complex?

temporal bone Remember that this bone makes up part of the lateral aspect of the skull.

The skull consists of __________.

the cranium and facial bones

The mandible articulates with __________.

the temporal bone

An inexperienced EMT administering CPR is unsure where to place his hands during chest compressions and uses too much pressure on the thoracic cage. Which structure in the thoracic cage could easily be broken?

the xiphoid process of the sternum

The adult sternum has __________ component(s).

three

Cervical vertebrae can be distinguished by __________.

transverse foramina and split tip of spinous process

Which of the following bones is NOT part of the cranium?

ulna