Flashcards in 7/16 Questions Exam 1 Deck (22):
What is the function of each type of bone cell?
Osteoblast form bone
Osteocytes maintain bone
Osteoclast remodel bone
What are the bone cells embedded in?
Amorphous matrix consisting of ground substance, protein fibers and various minerals
What is the primary constituent of the ground substance?
What types of glycosaminoglycans predominate in bone?
What is the principal type of protein fiber in bone?
Collagen type 1
What is the most frequently described deposit in bone?
Bone is also the repository for what additional ions?
What is Wolff's law as it pertains to bone?
Living tissue will respond to stressors; bone is formed or absorbed in response to stress
What are the three responses of bone that allow it to be described as living?
It has the ability to heal
To remodel under stressors
And to age
What is bone the embryological derivative of?
Mesenchyme or Cartilage
What is the name given to the pattern of ossification in mesenchyme?
What is the timing for the appearance of intramembranous ossification?
From the second to third month in utero
What is the name given to the pattern of ossification in cartilage?
What is the timing for the appearance of ossification in cartilage?
From the second to fifth month in utero
What part of the skull is derived from endochondral ossification?
Which skull bones are ossified by both endochondral and intramembranous ossification?
Which bone of the appendicular skeleton is formed by both endochondral and intramembranous ossification?
What are the names given to the centers of ossification based on time of appearance?
Primary centers of ossification appear before birth
Secondary centers of ossification appear after birth
What is the name given to the bone below an articulating surface?
What is the name of the outer fibro-cellular covering of bone?
What is the name given to the fibro-cellular lining of bone?