Histology; Bone and Ossification Photos

Question 1

Answer 1

long bone

1. proximal epiphysis
2. metaphysis
3. diaphysis
4. distal epiphysis

Question 2

Answer 2

1. articular cartilage
2. spongy bone
3. red bone marrow
4. epiphyseal line
5. endosteum
6. compact bone
7. periosteum
8. medullary cavity
9. articular cartilage

Question 3

Answer 3

short, flat, irregular, and sesamoid bone

1. compact bone
2. spongy (dipolë) bone

Question 4

Answer 4

osteoblast

Question 5

Answer 5

osteocyte

Question 6

Answer 6

osteoclast

Question 7

Answer 7

1. osteoblast
2. osteocyte

Question 8

Answer 8

bone cells

Question 9

Answer 9

1. osteoblasts
2. osteocytes

Question 10

Answer 10

1. osteoblast
2. osteoid

Question 11

Answer 11

osteocyte

1. canaliculi
2. lacuna
3. mineralized matrix

Question 12

Answer 12

osteocyte

1. canaliculi
2. osteocytes in lacuna

Question 13

Answer 13

osteoclasts

Question 14

Answer 14

1. osteoblasts
2. bone matrix
3. osteoclast
4. osteocytes

Question 15

Answer 15

primary bone tissue (woven bone)

Question 16

Answer 16

secondary bone tissue (lamellar bone)

Question 17

Answer 17

primary bone tissue (woven bone)

Question 18

Answer 18

secondary bone tissue (lamellar bone)

Question 19

Answer 19

1. woven bone
2. lamellar bone

Question 20

Answer 20

1. compact bone
2. spongy (cancellous) bone

Question 21

Answer 21

Osteon

1. helical collagen fibers
2. Haversian sytem
3. outer circumferential lamellae
4. interstitial lamella
5. periosteum
6. Sharpey’s fibers
7. Volkmann’s canal
8. Haversian canal
9. endosteum
10. spongy (cancellous) bone
11. endosteum
12. inner circumferential lamellae
13. cement line

Question 22

Answer 22

periosteum

A. osteogenic region
B. fibrous region

1. osteoprogenitor cels
2. osteoblasts

Question 23

Answer 23

osteon: compact bone
flooded with India ink

Question 24

Answer 24

osteon
decalcified (demineralized) compact bone

Question 25

Answer 25

compact bone

1. marrow
2. osteons
3. skeletal muscle

Question 26

Answer 26

osteon
1. newly formed osteon

* inner circumferential lamellae

Question 27

Answer 27

1. osteons
2. Haversian canals
3. osteoblasts in a newly forming osteon

Question 28

Answer 28

1. osteon
2. Haversian canals
3. Volkmann’s canals
4. circumferential lamellae

Question 29

Answer 29

development of osteons

1. new bone
2. new bone matrix not cacified
3. loose connective tissue
4. inward growing capillary sprout
5. osteoclasts

Question 30

Answer 30

spongy bone

1. osteocyte
2. osteoclast
3. intersitital lamellae
4. osteoblasts

Question 31

Answer 31

intramembranous ossification

Question 32

Answer 32

intramembranous ossification

Question 33

Answer 33

intramembranous ossification

Question 34

Answer 34

intramembranous ossification

1. mesenchyme
2. osteoblast
3. blood vessels
4. osteocyte
5. osteoid
6. primary bone tissue

Question 35

Answer 35

endochondral ossification
prior to birth due to lack of secondary ossification centers

Question 36

Answer 36

1. epiphysis
2. secondary ossification centers
3. epiphyseal plate
4. diaphysis

Question 37

Answer 37

1. epiphyseal bone
2. zone of resting/reserve zone
3. zone of proliferation
4. zone of hypertrphy
5. zone of calcification
6. zone of ossification

Question 38

Answer 38

A. epiphyseal bone
B. zone of resting
C. zone of proliferation
D. zone of hypertrophy
E. zone of calcification
F. zone of ossification

Question 39

Answer 39

spongy bone

osteocytes in lacunae
red marrow with adipocytes