Organization of Skeletal System

Question 1

Concentric Lamellae

Answer 1

Concentric bony layers around central canals

Question 2

Osteon (Haversian systems)

Answer 2

Rings of concentric thin plates (lamellae)

Question 3

Central (Haversian) canals

Answer 3

Central channel containing blood vessels, lymphatics
and nerves

Question 4

Lacunae

Answer 4

Small spaces between lamellae

Question 5

Perforating (Volkmann’s)
canals

Answer 5

Channels that pierce the central canals horizontally.
Contain neurovascular bundles

Question 6

Interstitial lamellae (systems)

Answer 6

Remnants of lamellae not circling the central canal

Question 7

Canaliculi

Answer 7

Small diffusion channels for nutrient and gas exchange

Question 8

foramen

Answer 8

Optic foramen; foramen magnum; mental foramina

Question 9

fissure

Answer 9

Superior and inferior orbital fissures

Question 10

meatus/canal

Answer 10

External auditory meatus

Question 11

fossa

Answer 11

Mandibular fossa; glenoid fossa

Question 12

process

Answer 12

coronoid process (mandible); styloid process (temporal bone);
spinous process (vertebra)

Question 13

tubercle

Answer 13

rib tubercle; conoid tubercle of clavicle

Question 14

facet

Answer 14

Articular facets (vertebra)

Question 15

angle

Answer 15

Mandibular angle; scapular angles

Question 16

condyle

Answer 16

Occipital condyles; mandibular condyle (condylar process)

Question 17

fossa

Answer 17

Mandibular fossa of temporal bone; glenoid fossa

Question 18

spine

Answer 18

Anterior superior iliac spine (ASIS); Anterior inferior iliac spine (AIIS)

Question 19

tuberosity

Answer 19

Ischial tuberosity; iliac tuberosity