Exam 2 Slide show Skeletal Tissue (pt3)

Question 1

What is the nutrient foramen?

Answer 1

an opening in the diaphysis bone that allows for arteries/veins to nourish the medullary cavity

Question 2

What is the nutrient groove?

Answer 2

the gradual groove on the exterior surface of the diaphysis that channels the arteries/veins into the bone.

Question 3

What is responsible for a bones tensile strength

Answer 3

collagen

Question 4

Which bone makes up the bulk of the diaphyses?

Answer 4

Compact bone

Question 5

Which bone tissue, resists stress produced by weight and movement?

Answer 5

Compact bone

Question 6

What is the haversian system?

Answer 6

units of bone tissue; aligned with lines of stress

Question 7

What are the “tree rings” of bone matrix around the haversian canals?

Answer 7

Concentric lamellae

Question 8

What is a unit of structure for bones called?

Answer 8

Osteon

Question 9

How do osteocytes that are confined within the bone matrix some distance from the nearest blood vessel obtain their nutrients and get rid of their waste products?

Answer 9

Via diffusion through the canaliculi

Question 10

. Is the term “circumferential lamellae” synonymous with the term “inner circumferential lamellae”? Explain.

Answer 10

No, the inner circumferential lamellae encircles the marrow cavity whereas circumferential lamellae encircles the entire bone just deep to the periosteum

Question 11

What fills the spaces between haversian systems?

Answer 11

Interstitial lamellae

Question 12

What are the longitudinal canals called?

Answer 12

Central canals

Question 13

What are the transverse canals called?

Answer 13

Volkman’s canals (AKA perforating canals)

Question 14

Which bone tissue does not have a haversian system?

Answer 14

Spongy Bone

Question 15

How is spongy bone oriented?

Answer 15

Along lines of stress

Question 16

Name the bones that are sites of hemopoiesis in adults

Answer 16

Red bone marrow in the spongy bone is the site of hemopoiesis (hip bones, ribs, sternum, vertebrae, ends of long bones )

Question 17

Is the term “hemopoiesis” synonymous with the term “hematopoiesis”?

Answer 17

Yes

Question 18

Bone is very vascular T/F

Answer 18

True

Question 19

What is the process of converting a fibrous connective tissue or cartilaginous model into bone

Answer 19

Ossification

Question 20

What are two methods of bone formation?

Answer 20

Intramembranous and endochondral

Question 21

In regards to bone formation, which method is where bones form within a hyaline cartilage model?

Answer 21

Endochondral

Question 22

In regards to bone formation, which method forms bones within a fibrous connective tissue membrane?

Answer 22

Intramembranous

Question 23

Clavicle and most bones of the skull including mandible, form this way

Answer 23

Intramembranous

Question 24

Is the term “calcification” synonymous with the term “ossification”?

Answer 24

Yes, calcification is a subcomponent of ossification.

Question 25

During calcificaiton, what cell deposits hyroxyapatite into the matrix?

Answer 25

Osteocytes, over several days