Bone As Tissue

Question 0

Where is red marrow formed?

Answer 0

Flat bones

Epipyses of long bones

Question 1

Functions of bone

Answer 1

Support
Protection
Leverage/movement
Mineral storage and release
Blood cell production
Triglyceride storage

Question 2

Where is yellow marrow formed?

Answer 2

Diaphysis of long bones

Question 3

Shaft

Answer 3

Diaphysis

Question 4

Distal and proximal ends of long bones

Answer 4

Epiphyses

Question 5

Junction between dia and epi

Also known as epiphyseal plate

Answer 5

Metaphyses

Question 6

Articular cartilage

Answer 6

Like hyaline cartilage

Question 7

Periosteum

Answer 7

Allows arteries and veins to enter near middle of diaphysis

Question 8

Medullary cavity

Answer 8

Hollow cavity down center of diaphysis (marrow cavity)

Question 9

Endosteum

Answer 9

Lines medullary cavity and is made of ct

Question 10

Bony extra cellular matrix contains

Answer 10

25% water
25% collagen
50% crystalline matrix

Question 11

Calcification

Answer 11

Calcium salts deposited in collagen framework
Initiated by osteoblasts
Highly organized

Question 12

Hardness of bone due to

Answer 12

Mineral salts

Question 13

Flexibility of bone due to

Answer 13

Collagen

Question 14

What provides the small amount of tensile strength in bone?

Answer 14

Collagen

Question 15

Osteogenic cells

Answer 15

Mesenchymal
Undergo cell division and develop into osteoblasts
Derived from mesoderm

Question 16

Osteoblasts

Answer 16

Bone producing cells
Synesthesize collagen
Initiate calcification and become trapped

Question 17

Osteoclasts

Answer 17

Produced from fusion of monocytes from leukocyte line
Breakdown and reabsorption of bone
Repair bone
Calcium phosphate constant replacement

Question 18

Bone thickness and density is a function of

Answer 18

Local stress on the bone

Question 19

Wolfs law

Answer 19

Bone undergoing stress forces increases thickness and density and slows osteoclast activity

Question 20

Osteoporosis

Answer 20

Increased osteoclast activity

Question 21

Osteon

Answer 21

Structural unit of compact bone

Question 22

Canals run parallel to long axis

Answer 22

Haversian canals/ central

Question 23

Canals run perpendicular to long axis

Answer 23

Perforating or volkmanns canal

Question 24

Surrounding the Haversian canals

Answer 24

Concentric lamellae

Question 25

Lacunae contain

Answer 25

Osteocytes

Question 26

Another name for spongy bone tissue

Answer 26

Diploe

Question 27

Spongy bone is made up of

Answer 27

Thin lattice of trabeculae

Question 28

Spongy bones make up what kind of bones?

Answer 28

Flat and irregular

Epiphyses of long bones

Question 29

Trabeculae

Answer 29

Precisely organized to transmit (compressive) forces along lines of stress