Question

question 9 (1 point)
for intramembranous ossification to take place, which of the following is nece
a bone collar forms around the cartilage model.
an ossification center forms in the fibrous connective tissue.
the cartilage matrix begins to deteriorate.
a medullary cavity forms.
question 10 (1 point)
when osteoblasts beneath the periosteum secrete bone matrix on external bone v
remove bone on the endosteal surface ____________ occurs.
endochondral ossification
interstitial growth
delayed growth
appositional growth

Explanation:

For intramembranous ossification, it occurs directly in mesenchymal (fibrous connective) tissue. An ossification center forms in the fibrous connective tissue. Options A, C, and D are related to endochondral ossification (which involves cartilage). For the second question, appositional growth is when osteoblasts beneath the periosteum secrete bone matrix on the external bone surface and osteoclasts remove bone on the endosteal surface. Endochondral ossification is a different ossification process (from cartilage), interstitial growth is growth from within (in cartilage), and delayed growth is not the correct term here.

Answer:

Question 9: An ossification center forms in the fibrous connective tissue.
Question 10: appositional growth.