Exam 2 Slide show Skeletal Tissue (pt3) Flashcards

1
Q

What is the nutrient foramen?

A

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

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2
Q

What is the nutrient groove?

A

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

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3
Q

What is responsible for a bones tensile strength

A

collagen

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4
Q

Which bone makes up the bulk of the diaphyses?

A

Compact bone

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5
Q

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

A

Compact bone

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6
Q

What is the haversian system?

A

units of bone tissue; aligned with lines of stress

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7
Q

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

A

Concentric lamellae

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8
Q

What is a unit of structure for bones called?

A

Osteon

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9
Q

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?

A

Via diffusion through the canaliculi

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10
Q

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

A

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

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11
Q

What fills the spaces between haversian systems?

A

Interstitial lamellae

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12
Q

What are the longitudinal canals called?

A

Central canals

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13
Q

What are the transverse canals called?

A

Volkman’s canals (AKA perforating canals)

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14
Q

Which bone tissue does not have a haversian system?

A

Spongy Bone

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15
Q

How is spongy bone oriented?

A

Along lines of stress

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16
Q

Name the bones that are sites of hemopoiesis in adults

A

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

17
Q

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

A

Yes

18
Q

Bone is very vascular T/F

A

True

19
Q

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

A

Ossification

20
Q

What are two methods of bone formation?

A

Intramembranous and endochondral

21
Q

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

A

Endochondral

22
Q

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

A

Intramembranous

23
Q

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

A

Intramembranous

24
Q

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

A

Yes, calcification is a subcomponent of ossification.

25
Q

During calcificaiton, what cell deposits hyroxyapatite into the matrix?

A

Osteocytes, over several days