Classification of Bones & Cartilage

Question 1

What are the 6 categories of bones?

Answer 1

long, short, flat, irregular, accessory-supranumerary, heterotopic

Question 2

What is a long bone?

Answer 2

it is tubular

length is greater than width

Question 3

What is a short bone?

Answer 3

cuboidal
length = width = height
only in tarsus (ankle) and carpus (wrist)

Question 4

What is a flat bone?

Answer 4

protective (cranium, sternum, scapulae, ribs)
flat, thin, slightly curved
ideal for hematopoesis

Question 5

What are irregular bones?

Answer 5

any bone that doesn’t fit the other five categories. ex. spinal column

Question 6

What are accessory-supranumerary bones?

Answer 6

the formation of “extra” bones - it occues when ossification centers failed to fuse together

Question 7

What are heterotopic bones?

Answer 7

bones that were not meant to be formed there

happens when there is multiple traumas to muscles and bone develops within

Question 8

What are the three types of cartilage?

Answer 8

hyaline, fiberous, elastic

Question 9

What is hyaline cartilage like?

Answer 9

• chondroblast & white collagen fibers
• respiratory tract, joint movement, bone growth
• on joint surface

Question 10

What is fibrous cartilage like?

Answer 10

for support and proection

-found on bone joint, knee and backbone

Question 11

What is elastic cartilage?

Answer 11

for flexibility and support

outer ear, epiglottis, larynx