Ossification | Quizalize

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Ossification

Quiz by chiquitaa

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Q 1/10
Score 0
proses pembentukan tulang ketika tulang rawan digantikan oleh tulang keras disebut?
30
osifikasi intramembranosa
osifikasi osteoprogenitor
osifikasi ekstramembranosa
osifikasi endokondral
Q 2/10
Score 0
Dimana sel osteosit berada?
30
lamela
kanal havers
lakuna
kanalikuli

10 questions

Q.

proses pembentukan tulang ketika tulang rawan digantikan oleh tulang keras disebut?

1

30 sec

Q.

Dimana sel osteosit berada?

2

30 sec

Q.

Sel yang dapat menghancurkan tulang untuk memperbarui sel tulang disebut?

3

30 sec

Q.

Sel yang berfungsi sebagai transport nutrisi ke osteosit adalah?

4

30 sec

Q.

Sel yang dapat mensekresi matriks organik dan matriks anorganik adalah?

5

30 sec

Q.

Matriks konsentris yang berbentuk seperti cincin tersusun atas garam mineral dan kolagen disebut?

6

30 sec

Q.

contoh tulang yang terbentuk karena osifikasi intramembranosa

7

30 sec

Q.

contoh tulang yang terbentuk karena osifikasi endokondral adalah?

8

30 sec

Q.

Sel sel mesenkim pada osifikasi intramembranosa berasal dari?

9

30 sec

Q.

carilah pernyataan yang benar!

10

30 sec

Related quizzes

Ossification endochondrale
Ossification intramembranaire
Endochondral ossification (cont’d) Secondary ossification center appears in the epiphysis (shortly after birth); no bone collar During remodeling, cavity is produced that fills with bone marrow 2 areas of cartilage remain Articular Epiphyseal (responsible for bone growth in length) Closure of plates is complete by age 20 Once closed, growth in length is stopped
Primary ossification center produced Chondrocytes enlarge,compress matrix (into trabeculae), calcify matrix (release enzymes and osteocalcin), die & leave large empty lacunae (cavity); periosteal bud brings osteoprogenitor cells & osteoblasts which lay down bone (woven) matrix on septa of cartilage matrix Osteoclasts resorb calcified cartilage/bone complex and enlarge cavity which fills with bone marrow; bone replaces cartilage along diaphysis
OSTEOGENESIS OF BONE (INTRAMEMBRANOUS VS. ENDOCHONDRAL) Intramembranous ossification (most flat bones of skull) Occurs w/in condensations of embryonic mesenchymal cells Differentiate into osteoblasts (takes place in primary ossification center) which surround capillaries Osteoid matrix is produced and then calcified forming trabeculae (islands of bone) of woven (primary) bone; its surface is surrounded by osteoblasts Trabecular growth leads to the fusion of adjacent ossification centers which gradually produce layers of compact bone that encloses spongy (cancellous) bone
Perichondrium is vascularized & bone collar formed Perichondrium becomes periosteum with osteoblasts which secrete bone matrix (collar blocks nutrients from reaching chondrocytes) Primary ossification center produced Chondrocytes enlarge,compress matrix (into trabeculae), calcify matrix (release enzymes and osteocalcin), die & leave large empty lacunae (cavity); periosteal bud brings osteoprogenitor cells & osteoblasts which lay down bone (woven) matrix on septa of cartilage matrix Osteoclasts resorb calcified cartilage/bone complex and enlarge cavity which fills with bone marrow; bone replaces cartilage along diaphysis
Zones in epiphyseal cartilage (regions of cellular activity) Zone 1: Zone of Resting cartilage Zone 2: Zone of proliferating cartilage Chondrocytes aligned as aggregates in lacunae Zone 3:Zone of hypertrophic cartilage Cells enlarge; matrix compressed into bands Zone 4: zone of calcified cartilage Cells calcify the matrix (hydroxyapatite crystals formed); undergo apoptosis Zone 5: Zone of ossification Vessels invade region; osteoblasts deposit osteoid on calcified spicules of cartilage forming woven bone; remodeled as lamellar bone
Desmale Ossifikation