Sixty-five percent of the mass of bone is a compound called hydroxyapatite.
True
During infancy and childhood, the most important stimulus of epiphyseal plate activity is ________.
growth hormone
Which of the following is not a function of the skeletal system?
communication
Bones do NOT have a role in ________.
glycogen production
The periosteum is secured to the underlying bone by dense connective tissue called ________.
perforating (Sharpey's) fibers
The cell responsible for secreting the matrix of bone is the ________.
osteoblast
In adults, yellow marrow is located ________.
in the medullary cavity of long bones
Ossification of the ends of long bones ________.
is produced by secondary ossification centers
Which of the following is the major component of the part of the bone labeled E?
adipose tissue
What kind of tissue is the forerunner of long bones in the embryo?
hyaline cartilage
Which of the labeled parts of the bone is composed primarily of compact bone?
D
The epiphyseal plate is ________.
where long bone lengthening occurs
An osteon contains osteocytes, lamellae, and a central canal, and is found in compact bone only.
True
A step in which bone-forming process is shown in the figure?
endochondral ossification
Choose the TRUE statement.
Endochondral ossification converts hyaline cartilage "bone" models into true bones (i.e., hyaline cartilage serves as a template for bone formation).
The above figure depicts which of the following bone-forming processes?
intramembranous ossification during embryonic development
The canal that runs through the core of each osteon (the Haversian canal) is the site of ________.
blood vessels and nerve fibers
Osteoclasts ________.
break down bone
The term diploë refers to the ________.
internal layer of spongy bone in flat bones
A fracture in the shaft of a bone would be a break in the ________.
diaphysis
Which of the following bones are formed by the illustrated process?
All of the listed responses are correct.
Which of the labeled parts of the bone is composed primarily of hyaline cartilage?
A
In adults, hematopoietic tissue is NOT found in ________.
the medullary cavity of long bones
The structural unit of compact bone (osteon) resembles the growth rings of a tree trunk.
True