Flashcards in Exam 1 - Cells, Matrix, Ossification, Bone Density, Bone Variation Deck (17)
What are the four basic tissues of the basic tissues of the human body?
What is the function of each type of bone cell?
Osteoblast - form bone
Osteocyte - maintain or nurture bone
Osteoclast - remodel bone
What are the bone cells embedded in?
An amorphous matrix consisting of ground substance, protein fibers, and various minerals
What is the principal type of protein fiber in bone?
collagen type 1
What is the most frequently described deposit in bone?
What is Wolff's Law as it pertains to bone?
living tissue will respond to stressors; bone is formed or absorbed in response to various stressors
What three responses to "living" bone were stressed in class?
Remodel under stressors
Bone is the embryological derivative of which specific connective tissues?
mesenchyme and/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 part of the axial skeletone is primarily formed by intramembranous ossification?
Which bone of the appendicular skeleton is partially formed by intramembranous ossification?
What is the name given to the pattern of ossifcation in cartilage?
What is the time 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?
What are the names given to the centers of ossification based on time of appearance?
Primary centers of ossification appear before birth
Secondary centeres of ossifcation appear after birth