Lecture Exam 3.1

Question 1

___________ is the initial formation of the bone/ bone matrix.

Answer 1

Osteoid tissue

Question 2

___________ is a type of very flexible bone that has high concentrations of calcium; also called embryonic bone or early bone; baby bones, most of their bones are this kind of bone

Answer 2

Woven bone

Question 3

____________ is adult bone, already formed the trabeculae.

Answer 3

Lamellar bone

Question 4

_________ is another name for woven bone.

Answer 4

Primary bone

Question 5

____________ is another name for lamellar bone.

Answer 5

Secondary bone

Question 6

_____________ is 20% of the bones of the body is this type of bone; another name is trabeculae bone.

Answer 6

Cancellous bone

Question 7

____________ resist stretching, bending, lighten up the weight of the human body.

Answer 7

Trabeculae bone

Question 8

_____________ contains red marrow; where Hematopoiesis takes place.

Answer 8

Intertrabecular spaces

Question 9

___________ takes place in the trabeculae spaces.

Answer 9

Hematopoiesis

Question 10

____________ is the beginning of the trabeculae bone development occurs when the first secretion of osteoid tissues occurs.

Answer 10

Lamellae

Question 11

___________ (is the transduction mechanism) and _________ is when the enzyme pushed out.

Answer 11

Mechanosensation; Prostaglandin E2

Question 12

_________ and _________ is when the enzyme pushed from one side to the other side.

Answer 12

Protein kinases; RUNX2

Question 13

80% of bone is made of _________, formed originally from cancellous bone.

Answer 13

compact bone

Question 14

________________ is a series of canals that run down the center of each osteon.

Answer 14

Haversian (central or osteon) canals

Question 15

__________ is the first or outermost layer of the bone.

Answer 15

Circumferential lamellae

Question 16

______________ is usually the newest layer formed of the bone.

Answer 16

Concentric lamellae

Question 17

_____________ is the old concentric lamellae that has been remodeled and replaced.

Answer 17

Interstitial lamellae

Question 18

_____________ is the system where the osteoblast next to the blood vessel is the one that collects the oxygen and past it on; feeding the cells of one osteon.

Answer 18

Haversian system

Question 19

__________ are interconnected through Volkmann’s canals.

Answer 19

Osteon

Question 20

___________ are long and/or wide; ex. Ulna, femur, radius

Answer 20

Long bones

Question 21

______________ are bone inside feet and hands; ex. Talus, capitate (carpal) bone.

Answer 21

Short bones

Question 22

__________ are bones in the skull are flat; ex. Scapula, sternum.

Answer 22

Flat bones

Question 23

__________ include some flat bones; ex. Sphenoid bone, ethmoid, vertebra

Answer 23

Irregular bones

Question 24

_____________ is the area at the end of the bone; spongy bone covered with compact bone.

Answer 24

Epiphysis

Question 25

____________is the shaft of the bone; mostly compact bone that supports the body weight.

Answer 25

Diaphysis

Question 26

______________ is a connective tissue; mesenchymal tissue → cartilage → bone

Answer 26

Hyaline cartilage

Question 27

______________ is literally a line of compact bone, signals the individual has stopped growing and over the age of 18-21.

Answer 27

Epiphyseal line

Question 28

The _____________ is the line of compact bone before the person turns 18-21 or stops growing.

Answer 28

epiphyseal disk

Question 29

______________ is the development of flat bones (like bones of skull, sternum, clavicle, pelvis, ribs); starts at 5 week period, mesenchymal membrane starts to develop.

Answer 29

Intramembranous ossification

Question 30

_________________ is made out of delicate collagen fibers during the early development of Intramembranous ossification.

Answer 30

Mesenchymal membrane

Question 31

________________ are stem cells; some start to develop into capillaries, most others develop into Osteogenic cells before developing into osteoblast, then to osteoid tissue.

Answer 31

Mesenchymal cells

Question 32

____________ is where osteogenic cells develop

Answer 32

Ossification centers

Question 33

______________ is everything that a bone is except something.

Answer 33

Osteoid tissue

Question 34

_________ is the space in which osteoid tissue is trapped in.

Answer 34

Lacunae

Question 35

Once osteoid tissue get trapped inside the lacunae they made for themselves, they are called ___________.

Answer 35

osteocytes

Question 36

________________ is when the trabecular has been formed; some contained blood vessels (capillaries), others start to deform back to __________.

Answer 36

Intertrabecular spaces; red marrow

Question 37

___________ are the tiny spaces that are getting calcified.

Answer 37

Bony spicules

Question 38

____________ is the part of the baby’s head.

Answer 38

Fontanels