Ch.7- The Axial Skeleton

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1

Which of the following statements is NOT true?
a) The axial skeleton has 80 bones.
b) The appendicular skeleton has 126 bones.
c) The axial skeleton is composed of the bones that run through the axis of the body.
d) Children have more bones than adults.
e) The appendicular skeleton does not include the pelvic and pectoral girdles.

e

2

Which of the following bones is NOT part of the axial skeleton?
a) Hyoid b) Ribs c) Vertebrae d) Carpals e) Sternum

d

3

Which of the following bones is part of the axial skeleton?
a) Tarsals b) Tibia c) Sphenoid d) Scapula e) Clavicle

c

4

Which following types of bone is the occipital bone?
a) Long bone b) Short bone c) Flat bone d) Irregular bone e) Sesamoid bone

c

5

Which of the following types of bone is a vertebra? a) Long bone b) Short bone c) Flat bone d) Irregular bone e) Sesamoid bone

d

6

Which following types of bones comprise the ankles and wrists? a) Long bone b) Sutural bone c) Irregular bone d) Sesamoid bone e) Short bone

e

7

Which of the following is NOT true of surface markings on bone?
a) They allow the passage of nerves and blood vessels.
b) They provide sites of attachment for muscles.
c) They allow bones to shorten or lengthen.
d) They help form joints.
e) They can be depressions or projections.

c

8

The tube-like passageway found in the temporal bone that allows sound waves to reach the eardrum is an example of which of the following bone surface markings?
a) fissure.
b) foramen.
c) fossa.
d) meatus.
e) sulcus.

d

9

meatus

a tube-like canal. The external auditory meatus is a good example.

10

Which of the following cranial bones are paired bones in the human skull?
a) temporal
b) parietal
c) sphenoid
d) ethmoid
e) more than one selection is correct

e

11

8 cranial bones

! Frontal bone (1)
! Parietal bone (2)
! Temporal bone (2)
! Occipital bone (1)
! Sphenoid bone (1)
! Ethmoid bone (1)

12

Which of following facial bones is a single (unpaired) bone in the human skull?

a) maxilla b) nasal c) lacrimal d) mandible e) zygomatic

d

13

14 facial bones

! Mandible (1)
! Maxilla (2)
! Zygomatic bone (2)
! Nasal bones (2)
! Lacrimal bones (2)
! Palatine bones (2)
! Inf. Nasal conchae (2)
! Vomer (1)

14

These cranial bones contain the organs of hearing and balance, and articulate with the mandible.

a) Frontal
b) Temporal
c) Parietal
d) Occipital
e) Nasal

b

15

Which of the following statements is NOT true with regard to bones of the skull?

a) Some skull bones are covered with a mucous membrane.
b) The only movable bone in the skull is the mandible.
c) The bones of the skull contain foramina but no fissures.
d) The facial bones provide support for the entrance of the digestive system.
e) Some bones of the skull contain sinus cavities.

c

16

This cranial bone is anterior to the sphenoid and posterior to the nasal bones. It contains foramina for the olfactory cranial nerve.

a) Ethmoid
b) Frontal
c) Palatine
d) Maxilla
e) Temporal

a

17

paranasal sinuses

The paranasal sinuses are prominent features of the frontal bone, ethmoid bone, sphenoid bone, and maxillary bones.

18

This facial bone articulates with teeth.

a) Lacrimal
b) Palatine
c) Vomer
d) Maxillae
e) Nasal

d

19

Which bone of the axial skeleton does NOT articulate with any other bone?

a) Vertebrae
b) Ethmoid
c) Sternum
d) Hyoid
e) Ilium

d

20

The hyoid bone is suspended by ligaments and muscle that extend from the _______ of the temporal bone.

a) mastoid process
b) styloid process
c) occipital condyle
d) zygomatic process
e) superior nuchal line

b

21

The primary function of the transverse and spinal processes of vertebrae is
a) attachment site for muscles.
b) calcium storage.
c) to support the body of the vertebrae.
d) to hold the hyoid in place.
e) to create a passageway for the spinal cord

a

22

Vertebrae typically consist of:

! A body (weight bearing)
! A pedicle and lamina forming the vertebral arch (surrounds the spinal cord)
! Several processes (points of attachment for muscles)

23

Which of the vertebrae listed below would be the largest and strongest vertebra in adult humans? a) C5 b) L4 c) T4 d) C7 e) T12

b

24

the vertebral column

• There are 7 cervical vertebrae in the neck region labeled C1-C7 .
• There are 12 thoracic vertebrae that articulate with the ribs (T1-T12).
• There are 5 lumbar vertebrae that support the lower back labeled L1-L5 .
• The sacrum and coccyx are single bones that result from the fusion of several vertebrae.

25

The two primary curves of the adult vertebral column are the
a) thoracic and sacral curves.
b) lumbar and sacral curves.
c) cervical and lumbar curves.
d) cervical and thoracic curves.
e) cervical and sacral curves.

a

26

the thorax

• The thoracic cage is the final part of the axial skeleton.
• In addition to the thoracic vertebrae, it is formed from: ! The sternum ! The ribs and costal cartilages
• Its functions are to enclose and protect the organs in the thoracic and abdominal cavities: ! Provide support for the bones of the upper limbs ! Play a role in breathing

27

Ribs that have costal cartilage that attaches directly to the sternum are called
a) floating ribs.
b) vertebrochondral ribs.
c) false ribs.
d) true ribs.
e) separated ribs.

d

28

The tubercle found on the neck of a rib articulates with a facet found on the

a) spinous process of a thoracic vertebra.
b) spinous process of a lumbar vertebra.
c) transverse process of a thoracic vertebra.
d) xiphoid process of the sternum.
e) manubrium of the sternum.

c