Chapter 7 Continued

Question 1

Hematopoietic stem cells

Answer 1

Blood stem cell for osteoclasts

Question 2

Osteoclasts

Answer 2

The cells of bone resorption

Question 3

Bone Resorption

Answer 3

Osteoclasts use enzymes to turn solid bones back to ECM liquid

Question 4

Monocytes

Answer 4

Blood cell that fuses together with other monocytes to form Osteoclasts

Question 5

Germ Layer bone producing cells are derived from

Answer 5

Mesoderm cells

Question 6

Mesenchymal Cells

Answer 6

Differentiated mesoderm cells, can fuse together to either osteogenic or chondrogenic cells

Question 7

Canaliculi

Answer 7

Tiny channels that allow neighboring osteocytes to communicate

Question 8

Trabecular Bone

Answer 8

1Composed of dense irregular connective tissue to resist tension
2 found in the Epiphyses and between cortical plates of flat and irregular bones (nckname[“Little beams” of Bone] spongy bone

Question 9

2Diaphysis

Answer 9

Extends from one shaft of a Long bone to the other shaft/________ basically like the body of a long bone

Question 10

2Epiphysis

Answer 10

2 Ends of Long bones

Question 11

Periosteum

Answer 11

Bone cover composed of 2 layers…..

1)Outer Fibrous Layer: composed of dense irregular connective tissue

2)Inner Osteogenic Layer: Provides Bone growth -

Question 12

Epiphyseal Line vs Epiphyseal Plate

Answer 12

Epiphyseal Line: -solid line across metaphysis & epiphysis of the bone *Marks site of where bones used to grow from. -commonly found in full grown adults indicating closed growth/Epiphyseal plates

Epiphyseal Plate- Found in unfully matured skeletal system that indicates person’s bones are still in growth process

Question 13

Wolf’s Law

Answer 13

Bone’s ability to adapt to stressors placed on them.

Question 14

Basic components that maintain life:

Answer 14

1) Oxygen
2) expell CO
3) Nutrition
4) expell waste

Question 15

Nutrient Foramen

Answer 15

Nutrient artery of bone that allows for entry of blood vessel to bone

Question 16

2 General process of making bone

Answer 16

1) Intramembranous Ossification -process that forms bones of [Flat bones of Cranium, Clavicle, Mandible]

2) Endochondrial Ossification- Process of making bones inside of Cartillage/___

Question 17

Epiphyseal plate

Answer 17

Continued Mitosis of CHONDROCYTES