Bones Pt. 3

Question 1

Sphenoid Bone

Answer 1

A bone at the base of cranium, behind eye but infront of brain

Question 2

Sella Turcica

Answer 2

Saddle-shaped depression located at base of skull

Question 3

Optic Canal

Answer 3

cylindrical canal running through the lesser wing of the sphenoid bone

Question 4

foramen ovale

Answer 4

Oval shape opening in the middle cranial fossa, in greater wing

Question 5

Ethmoid bone

Answer 5

middle area of the neurocranum, in the middle

Question 6

Cribriform plate

Answer 6

part of the ethmoid bone located at base of skull

Question 7

Crista galli

Answer 7

the perpendicular plate of the ethmoid bone

Question 8

Maxillia

Answer 8

Upper jaw

Question 9

Mandible

Answer 9

Lower jaw

Question 10

Condylar process

Answer 10

Very end of lower jaw

Question 11

Coronoid process

Answer 11

Bony buttress to prevent posterior dislocation, triangular

Question 12

Mandibular notch

Answer 12

A groove in the ramus of the mandible, like a long U

Question 13

Mental foramen

Answer 13

Two openings located on the anterior surface of the mandible, long line in middle of jaw

Question 14

7 Cervical vertebrae

Answer 14

C1-C7. connected at the back of the bone. Neck

Question 15

Atlas

Answer 15

articulates with occipital condyles, c1

Question 16

Axis

Answer 16

c2, pivot upon c1

Question 17

Odontoid process

Answer 17

a superior projecting bony element from the c2

Question 18

12 Thoracic vertebrae

Answer 18

T1-T12, Nerves in spinal cord

Question 19

Costal facets

Answer 19

Site of connection between Rib and Vertebra.
Transverse - surface that articulates with the tubercle of the rib with the same number for the first ten thoracic vertebrae
superior - site where a rib forms a joint with the top of a vertebra

Question 20

5 Lumbar vertebrae

Answer 20

L1 to L5, which progressively increase in size going down the lower back

Question 21

Sacrum

Answer 21

a shield-shaped bony structure that is located at the base of the lumbar vertebrae and that is connected to the pelvis (5)

Question 22

Sacral canal

Answer 22

continuation of the spinal canal and runs throughout the greater part of the sacrum. Above the sacral hiatus, it is triangular in form.

Question 23

Sacral hiatus

Answer 23

located at the distal (caudal) part of the sacrum and its lateral margins are formed by the two sacral cornua.

Question 24

Coccyx

Answer 24

3 to 5 bones. a small triangular bone at the base of the spinal column

Question 25

Intervertebral Discs

Answer 25

lies between adjacent vertebrae in the vertebral column.
Small Disc

Question 26

Intervertebral foramen

Answer 26

opening between every two vertebrae where the nerve roots exit the spine

Question 27

Xiphoid process

Answer 27

the cartilaginous section at the lower end of the sternum, which is not attached to any ribs,

Question 28

Manubruim

Answer 28

broad upper part of the sternum

Question 29

Floating ribs

Answer 29

any of the lower ribs which are not attached directly to the breastbone. Attached by cartillage

Question 30

Vertebrochondral ribs (False ribs)

Answer 30

There are three pairs of false ribs. They are intermediate between the true ribs and the floating ribs. They are sometimes called vertebrochondral ribs. They differ from the true ribs because they do not directly articulate with the sternum.

Question 31

Vertebrosternal ribs (True ribs)

Answer 31

They differ from false and floating ribs because they directly articulate with the sternum by means of their costal cartilages.

Question 32

Vertebral arch

Answer 32

two pedicles, the short stout processes that extend from the sides of the vertebral body and two laminae, the broad flat plates that project from the pedicles and join in a triangle to form a hollow archway

Question 33

Spinous process

Answer 33

bony projection off the posterior (back) of each vertebra.