Endochondral ossification
forms the parietal and frontal bones
results when the mesenchyme condenses into a fibrous CT around brain
occurs when bones develop from cartilage models
occurs when multiple centers of ossification converge together
The Correct Answer is C
A. forms the parietal and frontal bones
These bones are formed by intramembranous ossification, not endochondral. Intramembranous ossification occurs directly from mesenchyme.
B. results when the mesenchyme condenses into a fibrous CT around brain
This describes intramembranous ossification, not endochondral. Endochondral ossification uses a cartilage model, not fibrous connective tissue.
C. occurs when bones develop from cartilage models
Endochondral ossification is the process by which long bones and most bones of the body are formed by replacing a hyaline cartilage model with bone.
D. occurs when multiple centers of ossification converge together
While multiple ossification centers do form during endochondral ossification (e.g., primary in diaphysis, secondary in epiphyses), this does not define the process-it’s development from a cartilage model that is essential.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is E
Explanation
A. mesenchyme
Mesenchyme is a type of embryonic connective tissue from which all adult connective tissues develop. It has a fluid matrix and undifferentiated cells.
B. osteochondral
This is nota recognized fetal stem tissue type. It refers more to regions with both bone and cartilage precursors, but it's not a stem connective tissue.
C. mucous
Mucous connective tissue, found in the umbilical cord (Wharton's jelly), is another type of fetal stem connective tissue.
D. A & B
Mesenchyme is correct, but osteochondral is not a true fetal stem connective tissue.
E. A & C
Both mesenchyme and mucous connective tissue are fetal connective tissues with stem-like properties.
Correct Answer is C
Explanation
A. an inability to lay down new bone
Bone formation is the role of osteoblasts, not osteoclasts.
B. an inability to lay down cartilage
Cartilage is formed by chondroblasts, unrelated to osteoclasts.
C. an inability to regulate calcium
Osteoclasts resorb bone, releasing calcium into the bloodstream. Defective osteoclasts impair this process, disrupting calcium homeostasis.
D. an inability to create matrix
Osteoclasts break down bone matrix, they don’t create it. Matrix creation is done by osteoblasts.
Whether you are a student looking to ace your exams or a practicing nurse seeking to enhance your expertise , our nursing education contents will empower you with the confidence and competence to make a difference in the lives of patients and become a respected leader in the healthcare field.
Visit Naxlex, invest in your future and unlock endless possibilities with our unparalleled nursing education contents today
Report Wrong Answer on the Current Question
Do you disagree with the answer? If yes, what is your expected answer? Explain.
Kindly be descriptive with the issue you are facing.