Hist Ch 8

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In the first stage endochondral Long bone formation, bone formation occurs first in the endochondrium of the diaphysis

False

The first step in intramembranous bone growth the formation of hyaline cartilage model

False

Which statement below is not true for cartilage and bone

both are avascular

The last step in the path to producing bone tissue

calcification of cartilage

In the first stage of endochondral long bone formation, the periosteal color forms in the epiphysis region

false

The first stage and endochondral long bone confirmation, bone formation occurs first in endochondrium of the diaphysis

false

The formation of the periosteal color occurs during the final stage of long bone growth

false

The fetal skeleton is first modeled as what type of cartilage before being replaced by bone

hyaline cartilage

During stage 3 of long bone growth, osteoclasts begin to lay down bone on calcified cartilage

true

During stage 3 of long bone growth, two secondary centers of ossification form in the epiphyseal area

true

During stage three of long bone growth, the rate at which calcified cartilage erodes and is replaced by spongy bone is the same rate at which cartilage cells of epiphyseal plate divide

true

Electron Micrographs shown that collagen fibers in bone have the same 64 nm banding pattern as shown by collagen fibers and other tissues

true

The mechanism of cartilage calcification is thought to involve the release of phosphate ions due to action of alkaline phosphatase in chondrocytes

true

If bone is placed in weak acid for an extended period of time, the resulting bone becomes

very flexible

The organic component of bone is composed primarily of

collagen fibers

Once the cartilage model in bone formation is calcified, the chondrocyte present in the cartilage

die

They Type of bone growth which starts as a cartilage model is called

endochondral

During stage three of long bone growth, epiphyseal plates form but disappear after birth

false

Formation of the periosteal collar occurs during the final stage of long bone growth

false

In the first stage of endochondral Long bone formation, the periosteal collar forms in the epiphysis region

false

The type of bone growth exhibited by the flat bones of the skull in which bone is laid down on areas where there are many collagen fibers is called

intramembranous

The process of bone formation, hyaline cartilage arises from

mesenchyme

The type of bone cell responsible for the secretion of bone matrix and found in areas of new bone formation is called

osteoblast

The type of bone cell responsible for the secretion of the bone matrix and found areas of new bone formation is called an

osteoblast

Mesenchyme cells follow blood vessels into the diaphysis of the growing long bone and to differentiate into

osteoblasts

During stage two of long bone gross, blood vessels migrate into the center of the diaphysis through holes in the periosteal color formed by erosion of bone by

osteoclasts

The type of bone cell formed by blood monocytes and having from 15 to 20 nuclei Per cell which participates in bone reabsorption is called and

osteoclasts

The type of bone cell found in a fully formed bone which lives in small spaces called lacunae is called an

osteocyte

A boney latticework called trabeculae can be seen in

spongy bone


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