Quiz 3: Teeth, Hyoid, Vertebrae, Ribs, Thorax

Question 1

Part of the tooth covered by enamel

Answer 1

crown

Question 2

Part of the tooth that anchors the tooth in the alveolus of the mandible or maxilla

Answer 2

Root

Question 3

Specialized hard tissue that covers the crown

Answer 3

Enamel

Question 4

Bone-like tissue that covers the external surface of tooth roots

Answer 4

Cementum

Question 5

The tissue that forms the core of the tooth

Answer 5

Dentin

Question 6

The constricted part of the tooth at the junction of the crown and root

Answer 6

Cervix (or neck)

Question 7

The line encircling the crown at the cervix, marking the most root-ward extent of the enamel

Answer 7

Cementoenamel

Question 8

Body of the hyoid

Answer 8

Straddles the midline

Question 9

Greater horns of the hyoid

Answer 9

long, thin structures that form the posterior sides of the hyoid

Question 10

Lesser horns of the hyoid

Answer 10

small, conical eminences on the superior surface of the bone where the body and greater horns are joined

Question 11

How many cervical (neck) vertebrae

Answer 11

7

Question 12

How many thoracic (chest) vertebrae

Answer 12

12

Question 13

How many lumbar (lower back) vertebrae

Answer 13

5

Question 14

How many segments of sacral vertebrae

Answer 14

5

Question 15

How many segments of the coccyx

Answer 15

3-5, usually 4

Question 16

In the articulated vertebral column, what are the 4 distinct curves in the anterior/posterior plane

Answer 16

1) Cervical region (anterior curvature)
2) Thoracic region (posterior curvature)
3) Lumbar region (anterior curvature)
4) Sacrum/coccyx (very posterior curvature)

Question 17

Body of the vertebrae

Answer 17

Spool shaped structure that constitutes the main, weight bearing part of the vertebrae

Question 18

Spinous process of the vertebrae

Answer 18

Projects posteriorly on the midline and serves to anchor ligaments and muscles

Question 19

Transverse process of the vertebrae

Answer 19

Found on each side of each vertebrae

Question 20

Vertebral (neural) arch

Answer 20

Encloses the spinal cord posterior to the vertebral body

Question 21

Pedicle of the vertebral arch

Answer 21

the short segment of the arch close to the vertebral body, attached more superiorly to the body than inferiorly

Question 22

Lamina of the vertebral arch

Answer 22

Posterior to each pedicle, the plate like part of the arch that attaches the pedicle to the spinous process

Question 23

Vertebral foramen

Answer 23

the hole in each vertebrae where the spinal cord passes through

Question 24

Superior and inferior articular facets

Answer 24

for articulation with superior and inferior vertebrae

Question 25

Intervertebral discs

Answer 25

concentric rings of fibrous cartilage

Question 26

-All have transverse foramina
-Usually have bifurcated tips of spinous processes
-Obliquely oriented superior/inferior articular facets

Answer 26

Cervical vertebrae (C1-C7)